TEST AND MEASUREMENT PRODUCTS
1
www .semtech.com
Edge4707B
Quad Channel Per-Pin
Precision Measurement Unit
Description
Features
Functional Block Diagram
Applications
Revision 3 / December 18, 2002
The Edge4707B is a precision measurement unit designed
for automatic test equipment and instrumentation.
Manufactured in a wide voltage CMOS process, it is a
monolithic solution for a quad channel per pin PMU.
Each channel of the Edge4707B features a PMU that can
force or measure voltage over a 15V I/O range, and
supports 4 current ranges: 2
A, 200
A, 20
A, and 2
mA.
Each channel of the Edge4707B features an on-board
window comparator that provides two bits of information:
DUT too high and DUT too low. There is also a monitor
function which provides a real time analog signal
proportional to either the measured voltage or current.
The Edge4707B is designed to be a low power, low cost,
small footprint solution to allow high pin count testers to
support a PMU per pin.
In addition, two independent switches per channel (for a
central PMU force and sense) plus two wide voltage analog
muxes per channel are included.
FV / MI Capability
FI / MV Capability
FV / MV Capability
FI / MI Capability
4 Current Ranges (2
A, 20
A, 200
A, 2mA)
2V to +13V Output Range (Zero Current)
0V to 11V Output Range (Full Scale Current)
FV Linearity to
.025% FSR
Central PMU Switches
Per Pin Super Voltage Switches
Automated Test Equipment
- Memory Testers
- VLSI Testers
- Mixed Signal Tester
CHANNEL 0
COMPARATORS
DETECTOR LOGIC
VOLTAGE MONITOR
SENSE
FORCE
45
*
100
1K
VINP
FV / FI*
MI / MV*
IVMIN
IVMAX
DISABLE
E_FC_IN
E_SN_IN
DUTGTL
DUTLTH
IVMON
SENSE
FORCE
VINP
IVIN
FV / FI*
MI / MV*
IVMIN
IVMAX
DISABLE
DUTGTL
DUTLTH
IVMON
IVIN
IVIN
SENSE
FORCE
VINP
FV / FI*
MI / MV*
IVMIN
IVMAX
DISABLE
DUTGTL
DUTLTH
IVMON
SENSE
FORCE
VINP
FV / FI*
MI / MV*
IVMIN
IVMAX
DISABLE
DUTGTL
DUTLTH
IVMON
IVIN
CHANNEL 1
COMPARATORS
DETECTOR LOGIC
VOLTAGE MONITOR
45
100
1K
CHANNEL 2
COMPARATORS
DETECTOR LOGIC
VOLTAGE MONITOR
45
100
1K
CHANNEL 3
COMPARATORS
DETECTOR LOGIC
VOLTAGE MONITOR
45
100
1K
* Typical values
2
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
PIN Description
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3
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
PIN Description (continued)
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4
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
PIN Description (continued)
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
N1
N2
N3
N4
N5
N6
N7
N8
N9
N10
N11
N12
N13
N14
SVSEL3
SVSEL0
MI/MV*3
GND1
VEE1
VCC2
RESIN0
SENSE1
RESIN1
GND2
RD0
RA1
RB1
RD1
RC1
RA0
RB0
VCC1
RC0
SENSE0
FORCE0
FV/FI*1
MI/MV*1
MI/MV*0
RS0_3
VINP0
VCC1
IVMON0
IVMIN1
VCC3
VEE3
VCC4
VEE4
IVMON3
VCC2
IVIN0
IVMAX2
IVMIN3
VINP1
COMP1_0
IVIN1
IVMIN2
IVMIN0
IVMAX3
VINP3
IVIN2
IVIN3
VINP2
COMP4_0
COMP2_3
COMP3_3
COMP4_3
VEE1
COMP4_1
COMP3_2
COMP1_2
COMP1_3
COMP2_2
COMP4_2
VEE2
COMP3_0
COMP2_0
COMP1_1
COMP2_1
COMP3_1
IVMON1
IVMON2
IVMAX1
IVMAX0
RS0_0
RS1_0
RS0_2
RS0_1
E_FCSEL0
E_SNSEL2
E_SNSEL3
RS1_3
SVSEL2
SVSEL1
RS1_2
RS1_1
MI/MV*2
FV/FI*2
FV/FI*3
FV/FI*0
I_FCSEL3
I_FCSEL2
I_FCSEL0
I_FCSEL1
DISABLE2
E_FCSEL3
E_FCSEL1
E_SNSEL1
E_SNSEL0
E_FCSEL2
DISABLE3
DISABLE0
DISABLE1
M1
M2
M3
M4
M5
M6
M7
M8
M9
M10
M11
M12
M13
M14
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
L11
L12
L13
L14
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J12
J13
J14
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
H11
H12
H13
H14
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
N
P
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
K11
K12
K13
K14
M
L
K
J
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
12 mm X 12 mm 180 FLEXBGA
A1 Ball Pad Corner Indicator
(No Solder Ball)
VDD
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
VIH3
VIH0
VIH2
VIH1
E_SN_IN
E_FC_IN
DVH3
VIL3
VILH3
VILH2
VILH0
VILH1
VIHH2
VIL0
VIHH3
VIHH1
VIHH0
DVH2
DVH1
DVH0
DVL0
DVL1
VIL1
DVL2
VIL2
DUTLTH3
DUTLTH1
DUTLTH0
DUTGTL3
DUTGTL0
DUTGTL1
DUTGTL2
DUTLTH2
DVL3
FORCE1
VEE2
GND3
RESIN2
RA2
RB2
RC2
RD2
SENSE3
FORCE3
GND4
RESIN3
RA3
RB3
RC3
RD3
VEE4
VEE3
VCC4
VCC3
SENSE2
FORCE2
A1 Ball Pad
Indicator
Bottom View
5
Revision 3 / December 18, 2002
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TEST AND MEASUREMENT PRODUCTS
Edge4707B
PIN Description (continued)
A1 Ball Pad
Indicator
Top View
SENSE1
RA1
RB1
RD1
RC1
VCC3
IVMIN0
COMP4_1
VEE2
IVMON2
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
GND1
VEE1
VCC2
RC0
IVMIN1
VCC2
COMP2_0
IVMON1
IVMAX1
E_FCSEL0
SVSEL2
FV/FI*3
E_SNSEL1
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
MI/MV*3
RA0
RB0
VCC1
COMP1_0
COMP4_0
VEE1
COMP3_0
RS1_2
FV/FI*0
I_FCSEL1
DISABLE2
E_FCSEL3
E_SNSEL0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
SENSE0
FORCE0
RS0_3
VINP0
IVIN0
IVMAX0
RS0_2
SVSEL1
RS1_1
MI/MV*2
I_FCSEL0
DISABLE1
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
FV/FI*1
MI/MV*0
IVMON0
RS0_0
E_SNSEL2
E_SNSEL3
I_FCSEL3
I_FCSEL2
E_FCSEL1
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
SVSEL3
SVSEL0
MI/MV*1
VCC1
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
RS1_0
RS0_1
RS1_3
FV/FI*2
E_FCSEL2
DISABLE3
DISABLE0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
B
A
C
D
E
F
G
H
J
K
L
M
N
P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
12 mm X 12 mm 180 FLEXBGA
A1 Ball Pad Corner Indicator
(No Solder Ball)
N1
N2
N3
N4
N5
N6
N7
N8
N9
N10
N11
N12
N13
N14
VEE4
DVH3
DVH2
DVH1
DVL0
DUTLTH3
DUTLTH1
DUTGTL0
DUTLTH2
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
VDD
DVH0
DVL1
DVL2
DUTLTH0
DUTGTL3
DUTGTL1
DUTGTL2
DVL3
RESIN0
RESIN1
GND2
RD0
VINP1
IVIN1
COMP1_1
COMP2_1
COMP3_1
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
FORCE1
IVMON3
IVIN3
COMP3_2
COMP1_2
COMP2_2
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J12
J13
J14
GND3
RESIN2
RA2
RB2
RC2
IVMAX3
VINP3
COMP4_3
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
L11
L12
L13
L14
E_SN_IN
VILH3
VILH2
VILH1
VIHH2
VIL0
VIHH0
FORCE3
GND4
RESIN3
RB3
COMP2_3
COMP3_3
M1
M2
M3
M4
M5
M6
M7
M8
M9
M10
M11
M12
M13
M14
VIH3
VIH2
VIH1
VIL3
VILH0
VIL1
VIL2
RC3
RD3
VEE4
VEE3
VCC4
IVMIN3
COMP1_3
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
K11
K12
K13
K14
VIH0
E_FC_IN
VIHH3
VIHH1
RD2
SENSE3
RA3
VEE3
VCC4
IVMAX2
IVMIN2
IVIN2
VINP2
COMP4_2
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
H11
H12
H13
H14
VEE2
VCC3
SENSE2
FORCE2
SEMTECH
6
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Circuit Description
Circuit Overview
The Edge4707B is a quad channel parametric test and
measurement unit that can :
Force Voltage / Measure Current
Force Current / Measure Voltage
Force Voltage / Measure Voltage
Force Current / Measure Current
Each PMU channel can force or measure voltage over a
15V range and force or measure current over four distinct
ranges:
2
A
20
A
200
A
2 mA.
An on-board window comparator provides two bit output
range classification. Also, a monitor passes a real time
analog voltage which tracks either the measured current
or voltage.
PPMU Functionality
The trapezoid in Figure 1 describes the current-voltage
functionality of the PMU with VCC = 15.5V and
VEE = 4.5V, in Range D.
Control Inputs
FV/FI* is a TTL compatible input which determines whether
the PMU forces voltage or current, and MI/MV* is a TTL
compatible input which determines whether the PMU
measures current or voltage. FV/FI* and MI/MV* are
independent for each PMU. Table 1 describes the modes
of operation controlled by these pins.
Table 1.
RS0 and RS1 are TTL compatible inputs to an internal
analog mux which selects an external resistor
corresponding to a desired current range. The truth table
for RS0 to RS1, along with the associated external resistor
values and current ranges, is shown in Table 2. RS0 and
RS1 are independent for each channel of the 4707B.
Table 2.
FORCE/SENSE
FORCE is an analog output which either forces a current
or forces a voltage, depending on which operating mode
is selected.
SENSE is a high impedance analog input which measures
the DUT voltage input in the MV operating mode.
FORCE and SENSE are brought out to separate pins to
allow remote sensing.
*
I
F
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F
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R
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B
A
0
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K
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R
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0
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R
VOUT (@ I = 0) = 13.25V
VOUT (@ 2 mA) = 0.25V
VOUT (@ 2 mA) = 11.25V
VOUT (@ 200
A) = 12.8V (in Range D)
VOUT (@ 200
A) = 1.8V (in Range D)
VOUT (@ I = 0) = 2.25V
VCC = +15.5V
VEE = 4.5V
V
No restrictions
IMIN (2 mA)
IMAX (2 mA)
NOTE: Negative current implies current is flowing into the 4707 from DUT.
Figure 1. PMU Functionality
7
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Force Current Mode
In the FI mode (FV/FI* = 0), IVIN is a high impedance
analog voltage input that is converted into a current at
the FORCE pin using the following relationship:
Forced Current = IVIN / REXT
(Positive current is defined as current flowing out of the
FORCE pin.) The IVIN input voltage range and forced cur-
rent (at FORCE) can be seen in Table 4.
Table 4.
Measure Voltage Mode
In the MV mode (MI/MV* = 0), DUT voltage is measured
via the SENSE input pin. Note that EXT_SENSE_SEL = 0
when the Edge4707B SENSE is used. This measured
voltage is also tested with the on-board window compara-
tor.
Comparator
The Edge4707B features an on-board window compara-
tor which provides two-bit measurement range classifica-
tion. IVMAX and IVMIN are high impedance analog inputs
that establish the upper and lower thresholds for the win-
dow comparator.
In the MI mode, an I/V MAX input of +2V will set the
upper threshold of the window comparator to a voltage
corresponding to +FSC (full-scale current), and an I/V MIN
input of 2V will set the lower threshold to a voltage
corresponding to FSC (positive current is defined as
current flowing out of the PMU).
DUTGTL the DUTLTH are LVTTL compatible outputs which
indicate the range of the measured parameter in relation
to IVMIN and IVMAX. Comparator functionality is sum-
marized in Table 5 for MI Mode and Table 6 for MV mode.
Circuit Description (continued)
IVMON
IVMON is a real time analog voltage output which tracks
the sensed parameter.
In the MV mode, the output voltage displayed at IVMON is
a 1:1 mapping of the SENSE voltage. In the MI mode,
IVMON follows the equation:
IVMON = I(measured) * REXT
Using nominal values for the external resistors (RA, RB,
RC, and RD), a voltage at IVMON of +2V corresponds to
Imax and 2V corresponds to Imin of the selected current
range.
The IVMON pin can also be placed into a high impedance
state by using the DISABLE input (see Table 3).
Table 3.
Force Voltage Mode
In the FV mode (FV/FI* = 1), VINP is a high impedance
analog voltage input that maps directly to the voltage forced
at the FORCE pin.
Measure Current Mode
In the MI mode (MI/MV* = 1), a current monitor is
connected in series with the PMU forcing amplifier. This
monitor generates a voltage that is proportional to the
current passing through it, and is brought out to IVMON.
This voltage (corresponding to the measured current) is
also tested by the on-board window comparator.
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8
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
N
O
I
T
I
D
N
O
C
T
S
E
T
H
T
L
T
U
D
L
T
G
T
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X
A
M
V
I
>
N
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V
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A
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V
I
<
N
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V
I
0
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A
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V
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V
I
<
N
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M
V
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N
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I
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N
O
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V
I
1
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N
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T
I
D
N
O
C
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H
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L
T
U
D
L
T
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S
N
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S
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S
N
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1
1
Table 5. MI Comparator Truth Table
Table 6. MV Comparator Truth Table
Circuit Description (continued)
9
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Circuit Description (continued)
Figure 2. Edge4707B Functional Schematic
DRIVER
+
+
+
INST
.
+
COMP3
COMP2
COMP1
COMP4
RESIN
VINP
EXT_FORCE_IN
E_FC
SEL
E_SNSEL
IVIN
SENSE
EXT_SENSE
C
ext
C
ext
C
ext
FV*
0
FV*
FV
FV*
FV*
FV*
FV
FV
FV
1
1
0
FV
40K
40K
D*
D*
D
D
C*
C
B*
B
A*
A
C*
C
B*
B
A*
A
R
D
R
C
R
B
R
A
INT
INT
FORCE
DUT_L
TH
IV_MAX
IVMON
DISABLE
IV_MIN
DUT_G
TL
INT*
INT*
MI*
MI
MI*
MI
+
1
0
Edge4707B F
unctional Schematic
500
MI
MI/MV* = 1
MI*
MI/MV* = 0
FV
FV/FI* = 1
FV*
FV/FI* = 0
INT
I_FC
SEL = 1
INT*
I_FC
SEL = 0
C
ext's
are External Capacitors
10
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
REXT Selection
The Edge 4707B is designed for the voltage drop across
RA, RB, RC, and RD to be
2V with the maximum current
passing through them. However, these resistor values
can be changed to support different applications.
Increasing the maximum current beyond the nominal range
is not recommended. However, decreasing the maximum
current is allowed by increasing the external resistor using
the equation IMAX = 2V / REXT.
Switch Operation on Force and Sense Lines
Each channel of the Edge4707B features two switches
connected to the FORCE output pin (External Force = 45
,
Internal Force = 100
) and one 1K
switch connected
to the SENSE input pin. These switches are controlled by
the TTL compatible inputs I_FCSEL, E_FCSEL, and
E_SNSEL. Switch operation is described in Table 7.
Table 7.
These switches can be configured to route the Edge4707B
for external forcing or sensing operations (see Figure 2).
For external forcing operation, the switch controlled by
I_FCSEL can be used to internally isolate the PMU from
the FORCE output. This enables the user to connect
the FORCE pin to an external device connected to the
E_FC_IN pin using the switch controlled by the E_FC_SEL
input. I_FCSEL and E_FCSEL functionality is described in
Table 8.
Circuit Description (continued)
Table 8.
For external sense operation, the switch controlled by
E_SNSEL can be used to internally connect the SENSE
input pin to the E_SN_IN output pin (see Figure 2). This
allows the user to use the E_SN_IN pin for remote sensing.
Analog MUX
The Edge4707B has a separate analog mux section which
is intended for 12V flash programming signal muxing with
lower, more standard voltages. There are five inputs for
this section, all of which are brought out to external pins
(see Figure 3). The two outputs, DVH and DVL, connect
to driver reference voltages of the Edge720 (or other pin
electronics drivers).
Figure 3. Analog MUX Section
(Typically used to provide flash programming and standard
voltages to driver pin electronic references.)
The truth table for SV-SEL is shown in Table 9.
Table 9. SV-SEL Truth Table
L
E
S
_
V
S
0
H
I
V
=
H
V
D
L
I
V
=
L
V
D
1
H
H
I
V
=
H
V
D
H
L
I
V
=
L
V
D
)
e
g
a
t
l
o
v
r
e
p
u
s
(
L
E
S
C
F
_
I
L
E
S
C
F
_
E
E
C
R
O
F
0
0
Z
i
H
1
1
n
o
i
t
i
d
n
o
C
l
a
g
e
l
l
I
1
0
P
N
I
V
0
1
N
I
_
C
F
_
E
h
c
ti
w
S
t
c
e
l
e
S
h
c
ti
w
S
e
m
a
N
e
s
o
l
C
/
n
e
p
O
h
c
ti
w
S
n
o
e
t
a
t
S
0
0
1
,
l
a
n
r
e
t
n
i
o
t
y
r
t
i
u
c
r
i
c
e
c
r
o
f
L
E
S
C
F
_
I
n
e
p
O
=
0
d
e
s
o
l
C
=
1
5
4
,
l
a
n
r
e
t
x
e
o
t
y
r
t
i
u
c
r
i
c
e
c
r
o
f
L
E
S
C
F
_
E
n
e
p
O
=
0
d
e
s
o
l
C
=
1
K
1
l
a
n
r
e
t
x
e
o
t
,
y
r
t
i
u
c
r
i
c
e
s
n
e
s
L
E
S
N
S
_
E
n
e
p
O
=
0
d
e
s
o
l
C
=
1
VIH
VIHH
VIL
VILH
SV_SEL
1 K
Switches
DVH
DVL
11
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Circuit Description (continued)
Short Circuit Protection
The Edge 4707B is designed to survive a direct short circuit
to any legal voltage at the FORCE and SENSE pins, by
virtue of a limited current, which results from the presence
of an external current sense resistor (normally 1 K
to
1M
) in the FORCE path.
Transient Clamps
The Edge 4707B has on-board clamps to limit the voltage
and current spikes that might result from either changing
the current range or changing the operating mode.
Power Supply Sequencing
In order to avoid the possibility of latch-up, the following
power-up requirements must be satisified:
1. VEE
GND
VDD
VCC at all times
2. VEE
All inputs
VCC
The following power supply sequencing can be used as a
guideline when operating the Edge4707:
Power Up Sequence
1. VCC (substrate)
2. VEE/VDD
3. Digital Inputs
4. Analog Inputs
Power Down Sequence
1. Analog Inputs
2. Digital Inputs
3. VEE/VDD
4. VCC (substrate)
12
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Application Information
Required External Components (Per Channel)
RA
22 pF
1 M
100 K
10 K
1 K
RB
RC
RD
RES_IN
FORCE
DUT LTH
COMP1
COMP3
COMP2
VCC
VCC
.01
F
.1
F
.01
F
.01
F
.1
F
VEE
VEE
DUT GTL
SENSE
VDD
VDD
100 pF
Actual decoupling and compensation
capacitor values depend on the system environment.
To DUT
COMP4
Edge4707B
47 pF
To LVTTL Gate
To LVTTL Gate
13
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Maximum Input Voltage Range for FV Mode
In order to ensure that the full-scale output voltage range
(FSV) can be achieved by the 4707B, errors such as gain,
linearity, and offset must be taken into account when
determining the input voltage range required at VINP. The
equations in Table 10 can be used to determine the input
voltage range required at VINP to achieve full scale voltage
(FSV) at the FORCE pin.
Table 10.
Example: If it is desired to operate the 4707B with a FV
range of 2V to 13V, the VINP input voltages in Table 11
may be required.
Table 11.
P
N
I
V
E
C
R
O
F
V
3
.
3
1
V
3
1
+
V
3
1
.
2
V
2
)
e
s
a
C
t
s
r
o
W
(
P
N
I
V
E
C
R
O
F
V
S
F
n
i
a
G
V
+
S
O
r
o
r
r
E
y
t
i
r
a
e
n
I
L
+
V
S
F
+
V
S
F
n
i
a
G
V
+
S
O
r
o
r
r
E
y
t
i
r
a
e
n
I
L
+
V
S
F
Application Information (continued)
Calibration
In order to attain a high degree of accuracy in a typical
ATE application, offset and gain errors are accounted for
through software calibration. When operating the
Edge4707B in the Measure Current (MI) or Force Current
(FI) modes, an additional source of error, common mode
error, should be accounted for. Common mode error is a
measure of how the common mode voltage, V
CM
, at the
input of the current sense amplifier affects the forced or
measured current values (see Figure 4). Since this error
is created by internal resistors in the current sense
amplifier, it is very linear in nature.
Using the common mode error and common mode linearity
specifications, one can see that with a small number of
calibration steps (see Applications note PMU-A1), the
effect of this error can be significantly reduced.
Figure 4. Graphical Representation
of Common Mode Error
CM Error = Slope
CM Linearity
VOS @ IVMON
MI Common Mode Error
VCM @ FORCE
19.5 mV
2 mV
2 mV
3 mV
VEE + 4.25
VCC 4.25
NOTE: In some cases, slope may be negative.
14
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Application Information (continued)
Maximum Input Voltage Range for FI Mode
In order to ensure that the full-scale output current range
(FSC) can be achieved by the 4707B, errors such as
gain, linearity, common mode, and offset must be taken
into account when determining the input voltage range
required at IVIN. The equations in Table 12 can be used
to determine the input voltage range required at IVIN to
achieve full scale current (FSC) at the FORCE pin.
Table 12.
Example: To guarantee that the 4707B is capable of
forcing
2 mA with REXT = 1K
(Range D), the input
voltages in Table 13 may be required.
Table 13.
N
I
V
I
g
n
i
d
n
o
p
s
e
r
r
o
C
t
n
e
r
r
u
C
d
e
c
r
o
F
V
5
1
.
2
A
m
2
V
5
1
.
2
A
m
2
)
e
s
a
C
t
s
r
o
W
(
N
I
V
I
g
n
i
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n
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p
s
e
rr
o
C
t
n
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u
C
d
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c
r
o
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V
2
n
i
a
G
V
+
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O
r
o
r
r
E
y
ti
r
a
e
n
i
L
+
r
o
r
r
E
e
d
o
M
n
o
m
m
o
C
+
C
S
F
+
V
2
n
i
a
G
V
+
S
O
r
o
r
r
E
y
ti
r
a
e
n
i
L
+
r
o
r
r
E
e
d
o
M
n
o
m
m
o
C
+
C
S
F
15
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Package Information
PIN Descriptions
E2
D
D2
E
0.10
A
B
B
A
C
D
E
F
G
H
J
K
L
M
N
P
14
13
12
11
10
9
8
7
6
5
4
3
2
1
E1
D1
Detail B
Top View
Bottom View
16
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Package Information (continued)
/ / ccc C
/ / bbb C
aaa C
C
A2
A
C
A1
6
5
f
f
e
0.20 S C A S B S
0.75 S C
NX b
4
Detail A
Side View
Detail A
Detail B
NOTES:
1.
All dimensions are in millimeters.
2.
`e' represents the basic solder ball grid pitch.
3.
`M' represents the basic solder ball matrix size, and symbol `N' is
the maximum allowable number of balls after depopulating.
4.
`b' is measurable at the maximum solder ball diameter parallel
to primary datum C.
5.
Dimension `ccc' is measured parallel to primary datum C.
6.
Primary datum C and seating plane are defined by the spherical
crowns of the solder balls.
7.
Package surface shall be matte finish charmilles 24 to 27.
8.
Package warp shall be 0.050 mm maximum.
9.
Substrate material base is BT resin.
10. The overall package thickness `A' already considers collapse balls.
s
e
c
n
e
r
e
f
e
R
l
a
n
o
i
s
n
e
m
i
D
.
F
E
R
.
N
I
M
.
M
O
N
.
X
A
M
A
0
3
.
1
5
4
.
1
5
5
.
1
1
A
0
3
.
0
0
4
.
0
5
4
.
0
2
A
5
6
.
0
0
7
.
0
5
7
.
0
D
0
8
.
1
1
0
0
.
2
1
0
2
.
2
1
1
D
.
C
S
B
0
4
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0
1
2
D
0
8
.
1
1
0
0
.
2
1
0
2
.
2
1
E
0
8
.
1
1
0
0
.
2
1
0
2
.
2
1
1
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.
C
S
B
0
4
.
0
1
2
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0
8
.
1
1
0
0
.
2
1
0
2
.
2
1
b
0
5
.
0
5
5
.
0
0
6
.
0
c
5
3
.
0
a
a
a
5
1
.
0
b
b
b
0
2
.
0
c
c
c
5
2
.
0
e
5
2
7
.
0
0
8
.
0
5
7
8
.
0
f
0
7
.
0
0
8
.
0
0
9
.
0
M
4
1
N
0
8
1
17
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Recommended Operating Conditions
Absolute Maximum Ratings
r
e
t
e
m
a
r
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2
C
Stresses above listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
18
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
DC Characteristics
r
e
t
e
m
a
r
a
P
l
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y
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M
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)
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19
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
DC Characteristics (continued)
Force Current
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%
20
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
DC Characteristics (continued)
External Force & Sense Switches
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Measure Voltage
21
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Digital Outputs (DUTLTH, DUTGTL)
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DC Characteristics (continued)
Above DC Characteristic specifications are guaranteed over full Recommended Operating Condition ranges unless otherwise
noted.
Note 1:
Under no load conditions.
Note 2:
Guaranteed by design and characterization. Not production tested.
Note 3:
PSRR is tested from VCC/VEE supplies to FORCE and IVMON outputs. Characterized in FV/MI and FI/MV modes.
Note 4:
The mV/V units shown are derived as follows: (
offset current * range resistance) /
output force voltage.
Note 5:
Test Conditions: E_FC_SEL = I_FC_SEL = 0; FV/FI* = 0, FORCE and SENSE tied together over full-scale
voltage range.
Note 6:
Temperature coefficients are valid over a 25C to 65C case temperature range unless otherwise noted.
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22
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
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23
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
AC Test Conditions (unless otherwise noted): COMP1 to COMP2 = 22 pF, COMP3 = 100 pF to Ground,
COMP4 = 47 pF to RES_IN, Capacitive Load at FORCE/SENSE combined output = 150 pF to GND,
Capacitive Load at IVMON = 2 nF to GND,
Note 1:
Settling times are not production tested. Guaranteed by characterization.
Note 2:
Measured from 2V step at VINP to FORCE output.
Note 3:
Not production tested. Guaranteed by characterization.
Test Conditions for Characterization:
1. 15 pF load on output
2. input signal has 5 ns rise/fall time
3. tpd is defined as the difference between the time when the input crosses 1.5V to when the output
changes 10% (of the total change) from the initial voltage level. (see timing diagram below).
Note 4:
Measured from 2V step at VINP to IVMON output.
Note 5:
Measured from 2V step at IVIN to FORCE output.
Note 6:
Measured from 2V step at IVIN to IVMON output.
AC Characteristics (continued)
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Output
Input
24
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Ordering Information
Contact Information
Semtech Corporation
Test and Measurement Division
10021 Willow Creek Rd., San Diego, CA 92131
Phone: (858)695-1808 FAX (858)695-2633
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This device is ESD sensitive. Care should be taken when handling
and installing this device to avoid damaging it.
25
Revision 3 / December 18, 2002
www .semtech.com
TEST AND MEASUREMENT PRODUCTS
Edge4707B
Revision History
#
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Current Revision Date: October 3, 2002
Previous Revision Date: June 20, 2002
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