_____________________Pin Configurations/Functional Diagrams/Truth Tables
_______________________________________________________________________________________
1
PART
TEMP. RANGE
PIN-PACKAGE
DG441
CJ
0C to +70C
16 Plastic DIP
DG441CY
0C to +70C
16 Narrow SO
DG441C/D
0C to +70C
Dice*
DG441DJ
-40C to +85C
16 Plastic DIP
DG441DY
-40C to +85C
16 Narrow SO
DG441DK
-40C to +85C
16 CERDIP
DG441AK
-55C to +125C
16 CERDIP**
_______________General Description
Maxim's redesigned DG441/DG442 analog switches now
feature on-resistance matching (4
max) between
switches and guaranteed on-resistance flatness over the
signal range (9
max). These low on-resistance switches
conduct equally well in either direction. They guarantee
low charge injection (10pC max), low power consumption
(1.65mW), and an ESD tolerance of 2000V minimum per
Method 3015.7. The new design offers lower off-leakage
current over temperature (less than 5nA at +85C).
The DG441/DG442 are quad, single-pole/single-throw
(SPST) analog switches. The DG441 has four normally
closed switches, and the DG442 has four normally open
switches. Switching times are less than 250ns for t
ON
and
less than 70ns for t
OFF
. These devices operate from a sin-
gle +10V to +30V supply, or bipolar 4.5V to 20V sup-
plies. Maxim's improved DG441/DG442 continue to be
fabricated with a 44V silicon-gate process.
________________________Applications
Sample-and-Hold Circuits
PBX, PABX
Communication Systems
Guidance and Control Systems
Test Equipment
Audio-Signal Routing
Battery-Operated Systems
Military Radios
Heads-Up Displays
Modems
Fax Machines
______________________New Features
o
Plug-In Upgrades for Industry-Standard DG441/DG442
o
Improved rDS(ON) Match Between Channels(4
max)
o
Guaranteed rFLAT(ON) Over Signal Range (9
max)
o
Improved Charge Injection (10pC max)
o
Improved Off-Leakage Current Over Temperature
(<5nA at +85C)
o
Withstand Electrostatic Discharge (2000V min)
per Method 3015.7
__________________Existing Features
o
Low r
DS(ON)
(85
max)
o
Single-Supply Operation +10V to +30V
Bipolar-Supply Operation 4.5V to 20V
o
Low Power Consumption (1.65mW max)
o
Rail-to-Rail Signal Handling
o
TTL/CMOS-Logic Compatible
______________Ordering Information
Improved, Quad, SPST Analog Switches
19-4611; Rev 2; 7/96
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
D2
S2
V+
V-
S1
D1
IN1
DG442
N.C.
S3
D3
IN3
IN4
D4
S4
GND
DIP/SO
DIP/SO
DG442
LOGIC
SWITCH
0
1
OFF
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT
DG441
LOGIC
SWITCH
0
1
ON
OFF
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
D2
S2
V+
V-
S1
D1
IN1
DG441
N.C.
S3
D3
IN3
IN4
D4
S4
GND
TOP VIEW
N.C. = Not Internally Connected
DG441/DG442
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Ordering Information continued on last page.
*
Contact factory for dice specifications.
**
Contact factory for availability and processing to MIL-STD-883B.
2
_______________________________________________________________________________________
DG441/DG442
Improved, Quad, SPST Analog Switches
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS--Dual Supplies
(V+ = 15V, V- = -15V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+.........................................................................................44V
GND .....................................................................................25V
V
L
...................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs, V
S
, V
D
(Note 1)......(V- - 2V) to (V+ + 2V) or 30mA
(whichever occurs first)
Continuous Current (any terminal) ......................................30mA
Peak Current, S or D
(pulsed at 1ms, 10% duty-cycle max) .................................100mA
Continuous Power Dissipation (T
A
= +70C)
Plastic DIP (derate 10.53mW/C above +70C) ............842mW
Narrow SO (derate 8.70mW/C above +70C) ..............696mW
CERDIP (derate 10.00mW/C above +70C) .................800mW
Operating Temperature Ranges
DG441C/DG442C .................................................0C to +70C
DG441D/DG442D ..............................................-40C to +85C
DG441AK/DG442AK .......................................-65C to +150C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
V+ = 16.5V, V- = -16.5V,
V
D
= 15.5V,
V
S
= 15.5V
-0.50
0.08
0.50
I
D(ON)
or
I
S(ON)
V+ = 13.5V, V- = -13.5V,
I
S
= -10mA,
V
D
= 8.5V or -8.5V
(Note 3)
V
IN
= 0.8V
V+ = 16.5V, V- = -16.5V,
V
D
= 15.5V,
V
S
= 15.5V
-.0.50
0.01
0.50
V+ = 16.5V, V- = -16.5V,
V
D
= 15.5V,
V
S
= 15.5V
-0.50
0.01
0.50
I
D(OFF)
Drain Off-Leakage Current
(Note 5)
nA
V+ = 15V, V- = -15V,
V
D
= 10V,
I
S
= -10mA
4
r
DS(ON)
On-Resistance Match
Between Channels (Note 4)
V
IN
= 2.4V
CONDITIONS
Drain On-Leakage Current
(Note 5)
nA
T
A
= +25C
T
A
= T
MAX
A
-20
20
nA
-500
0.01
500
I
INL
Input Current with
Input Voltage Low
-5
5
T
A
= +25C
T
A
= T
MAX
C, D
nA
-500
0.01
500
I
INH
Input Current with
Input Voltage High
5
50
85
r
DS(ON)
Drain-Source On-Resistance
V
-15
15
V
ANALOG
Analog-Signal Range
I
S(OFF)
Source Off-Leakage Current
(Note 5)
nA
-20
20
T
A
= +25C
T
A
= T
MAX
C, D
T
A
= +25C
T
A
= T
MIN
to T
MAX
V+ = 15V, V- = -15V,
V
D
= 5V or -5V,
I
S
= -10mA
9
100
T
A
= +25C
T
A
= T
MIN
to T
MAX
r
FLAT(ON)
On-Resistance Flatness
(Note 4)
15
T
A
= +25C
T
A
= T
MIN
to T
MAX
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
A
-5
5
-20
20
A
-10
10
C, D
Note 1:
Signals on S, D, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.
DIGITAL
SWITCH
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________
3
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
All channels on or off, V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
T
A
= +25C
f = 1MHz, Figure 6
T
A
= +25C
pF
T
A
= +25C
T
A
= +25C
C
L
= 1nF, V
GEN
= 0V,
R
GEN
= 0
, Figure 3
All channels on or off,
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
T
A
= +25C
All channels on or off, V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
CONDITIONS
110
170
Q
Charge Injection (Note 3)
pC
5
10
T
A
= +25C
DG441, V
D
= 10V, Figure 2
ns
4
C
D(OFF)
Drain Off-Capacitance
pF
4
T
A
= +25C
R
L
= 50
, C
L
= 5pF,
f = 1MHz, Figure 5
dB
60
Crosstalk (Note 7)
dB
-100
R
L
= 50
, C
L
= 5pF,
f = 1MHz, Figure 4
OIRR
Off-Isolation Rejection
Ratio (Note 6)
f = 1MHz, Figure 6
C
S(OFF)
Source Off-Capacitance
T
A
= +25C
A
15
100
I+
Positive Supply Current
V
4.5
20.0
V+, V-
Power-Supply Range
150
250
t
OFF
Turn-Off Time
ns
90
120
V
S
= 10V, R
L
= 1k
, Figure 2
t
ON
A
-1
-0.0001
1
I-
Negative Supply Current
-5
5
Turn-On Time
DG442, V
D
= 10V, Figure 2
A
-100
-15
I
GND
Ground Current
f = 1MHz, Figure 6
C
D(ON)
Drain On-Capacitance
pF
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
16
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = 15V, V- = -15V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
SUPPLY
DYNAMIC
DG441/DG442
Improved, Quad, SPST Analog Switches
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS--Single Supply
(V+ = 12V, V- = 0V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
__________________________________________Typical Operating Characteristics
(T
A
= +25C, unless otherwise noted.)
-15
0
15
-10
-5
5
10
ON-LEAKAGE CURRENTS
ON-LEAKAGE (nA)
-2
-1
0
1
2
3
4
VS, VD (V)
T
A
= +125C
T
A
= +85C
V+ = 15V
V- = -15V
-15
0
15
-10
-5
5
10
OFF-LEAKAGE CURRENTS
OFF-LEAKAGE (nA)
-1
0
2
1
VS, VD (V)
T
A
= +85C
T
A
= +125C
V+ = 15V
V- = -15V
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
V
IN
(V)
0
0.5
1.5
2.0
2.5
3.0
3.5
5
10
15
20
BIPOLAR SUPPLY VOLTAGE (V)
MAX
MIN
Note 2:
Typical values are for
design aid only,
are not guaranteed, and are not subject to production testing. The algebraic con-
vention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet.
Note 3:
Guaranteed by design.
Note 4:
On-resistance match between channels and flatness is guaranteed only with bipolar-supply operation. Flatness is defined
as the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the speci-
fied analog range.
Note 5:
Leakage parameters I
S(OFF)
, I
D(OFF)
, and I
D(ON)
are 100% tested at the maximum rated hot temperature and guaranteed
by correlation at +25C.
Note 6:
Off-Isolation Rejection Ratio = 20log (V
D
/V
S
), V
D
= output, V
S
= input to off switch.
Note 7:
Between any two switches.
T
A
= +25C
T
A
= T
MIN
to T
MAX
A
(Note 3)
T
A
= +25C
A
15
100
All channels on or off, V
IN
= 0V or 5V
I+
T
A
= T
MIN
to T
MAX
Positive Supply Current
T
A
= +25C
C
L
= 1nF, V
GEN
= 0V
ns
V+ = 10.8V, V
D
= 3V, 8V,
I
S
= 1.0mA
60
200
Q
Charge Injection (Note 3)
pC
5
10
CONDITIONS
-5
5
V
S
= 8V, Figure 2
t
OFF
Turn-Off Time
T
A
= +25C
All channels on or off,
V
IN
= 0V or 5V
V
-100
-15
All channels on or off, V
IN
= 0V or 5V
I
GND
Ground Current
T
A
= +25C
V
0
12
V
ANALOG
Analog Signal Range
10
30
I-
Negative Supply Current
A
-1
-0.0001
1
V+
100
160
r
DS(ON)
Drain-Source
On-Resistance
200
Power-Supply Range
V
S
= 8V, Figure 2
t
ON
Turn-On Time
ns
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
300
400
SWITCH
SUPPLY
DYNAMIC
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________
5
____________________________Typical Operating Characteristics (continued)
(T
A
= +25C, unless otherwise noted.)
ON-RESISTANCE vs. V
D
AND
UNIPOLAR SUPPLY VOLTAGE
0
25
50
75
100
125
150
175
200
225
250
0
5
10
15
20
VD (V)
r DS(ON)
(
)
V+ = 10V
V+ = 15V
V+ = 20V
ON-RESISTANCE vs. V
D
AND UNIPOLAR
SUPPLY VOLTAGE AND TEMPERATURE
0
25
50
75
100
125
150
r DS(ON)
(
)
0
4
8
12
VD (V)
T
A
= +125C
T
A
= +25C
T
A
= -55C
V+ = 12V
V- = 0V
ON-RESISTANCE vs. V
D
AND
BIPOLAR SUPPLY VOLTAGE
r DS(ON)
(
)
30
60
90
120
150
180
-20
-10
0
+10
+20
VD (V)
5V
10V
15V
20V
0
-15
0
15
-10
-5
5
10
ON-RESISTANCE vs. V
D
AND
BIPOLAR VOLTAGE AND TEMPERATURE
r DS(ON)
(
)
0
20
40
60
80
100
120
VD (V)
T
A
= +125C
T
A
= -55C
T
A
= +25C
V+ = 15V, V- = -15V
SWITCHING TIMES vs.
BIPOLAR SUPPLY VOLTAGE
TIME (ns)
0
40
80
120
160
200
240
5
10
15
20
BIPOLAR SUPPLY VOLTAGE (V)
tON
tOFF
SWITCHING TIMES vs.
UNIPOLAR SUPPLY VOLTAGE
TIME (ns)
0
50
100
150
200
250
300
350
10
15
20
25
UNIPOLAR SUPPLY VOLTAGE (V)
tON
tOFF
CHARGE INJECTION vs.
VD VOLTAGE (DUAL SUPPLY)
Q (pC)
-20
0
20
40
V
D
(V)
-15
-10
0
10
15
V+ = 15V
V- = -15V
CL = 1nF
CHARGE INJECTION vs.
VD VOLTAGE (SINGLE SUPPLY)
Q (pC)
-10
0
10
0
5
10
15
V
D
(V)
V+ = 12V
V- = 0V
CL = 1nF
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