www.docs.chipfind.ru
1
FN7200
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL5485, EL5486
Quad 4ns High Speed Comparators
The EL5485 and EL5486 comparators
are designed for operation in single
supply and dual supply applications
with 5V to 12V between V
S
+ and V
S
-. For single supplies,
the inputs can operate from 0.1V below ground for use in
ground sensing applications.
The output side of the comparators can be supplied from a
single supply of 2.7V to 5V. The rail-to-rail output swing
enables direct connection of the comparator to both CMOS
and TTL logic circuits.
The latch input of the EL5486 can be used to hold the
comparator output value by applying a low logic level to the
pin.
The EL5485 is available in the 16-pin SO (0.150") package
and the EL5486 in the 24-pin QSOP package. Both are
specified for operation over the full -40C to +85C
temperature range. Also available are single (EL5185), dual
(EL5285), and window comparator (EL5287) versions.
Pinouts
Features
4ns typ. propagation delay
5V to 12V input supply
+2.7V to +5V output supply
True-to-ground input
Rail-to-rail outputs
Active low latch
Single (EL5185) available
Dual (EL5285) available
Window available (EL5287)
Pin-compatible 8ns family available (EL5x81, EL5283 &
EL5482)
Applications
Threshold detection
High speed sampling circuits
High speed triggers
Line receivers
PWM circuits
High speed V/F converters
1
2
3
4
16
15
14
13
5
6
7
12
11
10
8
9
EL5485
[16-PIN SO (0.150")]
TOP VIEW
1
2
3
4
16
15
14
13
5
6
7
12
11
9
8
10
20
19
18
17
24
23
22
21
EL5486
(24-PIN QSOP)
TOP VIEW
-
+
-
+
-
+
-
+
INA-
INA+
GND
OUTA
OUTB
VS-
INB+
INB-
IND-
IND+
VS+
OUTD
OUTC
VSD
INC+
INC-
-
+
-
+
-
+
-
+
LATCHA
OUTA
OUTB
LATCHB
VS-
NC
INB+
INB-
LATCHD
OUTD
OUTC
LATCHC
VSD
NC
INC+
INC-
INA-
INA+
NC
GND
IND-
IND+
NC
VS+
Ordering Information
PART NUMBER
PACKAGE
TAPE &
REEL
PKG. NO.
EL5485CS
16-Pin SO (0.150")
-
MDP0027
EL5485CS-T7
16-Pin SO (0.150")
7"
MDP0027
EL5485CS-T13
16-Pin SO (0.150")
13"
MDP0027
EL5486CU
24-Pin QSOP
-
MDP0040
EL5486CU-T13
24-Pin QSOP
13"
MDP0040
Data Sheet
January 18, 2002
OBS
OLE
TE P
ROD
UCT
NO R
ECO
MME
NDE
D RE
PLAC
EME
NT
con
tact
our
Tech
nica
l Su
ppo
rt Ce
nter
at
1-88
8-IN
TER
SIL
or w
ww.
inte
rsil.c
om/
tsc
2
Absolute Maximum Ratings
(T
A
= 25C)
Analog Supply Voltage (V
S
+ to V
S
-) . . . . . . . . . . . . . . . . . . . +12.6V
Digital Supply Voltage (V
SD
to GND). . . . . . . . . . . . . . . . . . . . . .+7V
Differential Input Voltage . . . . . . . . . . .[(V
S
-) -0.2V] to [(V
S
+) +0.2V]
Common-Mode Input Voltage . . . . . . .[(V
S
-) -0.2V] to [(V
S
+) +0.2V]
Latch Input Voltage . . . . . . . . . . . . . . . . . . . . -0.2V to [(V
SD
) +0.2V]
Storage Temperature Range . . . . . . . . . . . . . . . . . . -65C to +150C
Ambient operating Temperature . . . . . . . . . . . . . . . . -40C to +85C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 125C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
V
S
= 5V, V
SD
= 5V, R
L
= 2.3k
, T
A
= 25C, unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
INPUT
V
OS
Input Offset Voltage
V
CM
= 0V, V
O
= 2.5V
1
4
mV
I
B
Input Bias Current
-10
-5
A
C
IN
Input Capacitance
5
pF
I
OS
Input Offset Current
V
CM
= 0V, V
O
= 2.5V
-2.5
0.5
2.5
A
V
CM
Input Voltage Range
(V
S
-) -0.1
(V
S
+) -2.25
V
CMRR
Common-mode Rejection Ratio
-5.1V < V
CM
< +2.75V, V
O
= 2.5V
65
90
dB
OUTPUT
V
OH
Output High Voltage
V
IN
> 250mV
V
SD
-0.6
V
SD
-0.4
V
V
OL
Output Low Voltage
V
IN
> 250mV
GND +0.25
GND +0.5
V
DYNAMIC PERFORMANCE
t
pd
+
Latch Disable to High Delay
V
IN
= 1V
P-P
, V
OD
= 50mV
4
6
ns
t
pd
-
Latch Disable to Low Delay
V
IN
= 1V
P-P
, V
OD
= 50mV
4
6
ns
SUPPLY
I
S
+
Positive Analog Supply Current
Per comparator
12
13.5
mA
I
S
-
Negative Analog Supply Current
Per comparator
7.5
8.5
mA
I
SD
Digital Supply Current at No Load
Per comparator, output high
5.5
6.5
mA
Per comparator, output low
0.9
1.2
mA
PSRR
Power Supply Rejection Ratio
55
80
dB
LATCH
V
LH
Latch Input Voltage High
2.0
V
V
LL
Latch Input Voltage Low
0.8
V
I
LH
Latch Input Current High
V
LH
= 3.0V
-30
-18
A
I
LL
Latch Input Current Low
V
LL
= 0.3V
-30
-24
A
t
d
+
Positive Going Delay Time
V
OD
= 5mV, C
L
= 15pF, I
O
= 2mA
4
ns
t
d
-
Negative Going Delay Time
V
OD
= 5mV, C
L
= 15pF, I
O
= 2mA
4
ns
t
s
Minimum Setup Time
2
ns
t
h
Minimum Hold Time
1
ns
t
pw
(D)
Minimum Latch Disable Pulse Width
5
ns
EL5485, EL5486
3
Typical Performance Curves
Offset Voltage vs Temperature
-50
-30
10
30
50
70
90
2.5
2
1
0.5
0
-0.5
Temperature (C)
V
OS
(mV)
1.5
-10
Input Bias Current vs Temperature
-50
-30
30
50
90
9
8
4
3
2
1
Temperature (C)
IB (A)
6
-10
10
70
7
5
Supply Current vs Supply Voltage
14
12
10
8
6
4
2
0
0
1
2
3
4
5
6
V
S
(V)
I
S
(mA)
I
S
+
I
S
-
V
IN
=-50mV
R
L
=2.3k
Supply Current vs Temperature (per comparator)
14
12
10
8
6
4
2
0
-50
-30
10
30
50
70
90
Temperature (C)
Sup
p
l
y
Cu
r
r
e
n
t (mA)
I
S
+
I
S
-
-10
Output Low Voltage vs Temperature
-50
-30
10
30
50
70
90
Temperature (C)
V
OL
(V
)
-10
Output High Voltage vs Temperature
-50
-30
10
30
50
70
90
Temperature (C)
V
OH
(V)
-10
0.4
0.1
0.2
0.3
4.8
4.4
4.2
4
5
4.6
EL5485, EL5486
4
Typical Performance Curves
(Continued)
Digital Supply Current vs Switching Frequency
(per comparator)
0
20
40
50
25
20
10
0
Frequency (MHz)
I
SD
(mA)
15
10
5
30
V
S
=5V
T
A
=25C
R
L
=2.3k
V
SD
=5V
V
SD
=3V
Propagation Delay vs Overdrive
V
IN
=1V
STEP
4.2
4.1
4
3.9
3.8
3.7
3.6
3.5
50
100
200
300
400
500
600
V
OD
(mV)
D
e
la
y
Time
(ns)
T
PD
+
T
PD
-
150
250
350
450
550
V
S
=5V
V
SD
=5V
R
L
=2.3k
Propagation Delay vs Overdrive
V
IN
=3V
STEP
6.8
6.6
6.4
6.2
6
5.8
5.4
5
0.2
0.4
0.8
1
1.2
1.6
2
V
OD
(V)
De
la
y Time
(
n
s)
T
PD
+
T
PD
-
0.6
1.4
1.8
V
S
=5V
V
SD
=5V
R
L
=2.3k
5.6
5.2
Propagation Delay vs Overdrive
V
IN
=5V
STEP
7.2
7
6.8
6.6
6.4
6.2
6
5.8
0.2
0.4
1
1.4
1.8
2.2
2.6
V
OD
(V)
D
e
la
y Tim
e
(
n
s)
T
PD
+
T
PD
-
0.6
1.2
1.6
2
2.4
V
S
=5V
V
SD
=5V
R
L
=2.3k
0.8
Propagation Delay vs Source Resistance
V
IN
=1V
STEP
16
14
10
6
4
0
0.2
0.8
1.2
1.6
1.8
2
Source Resistance (k
)
D
e
la
y Tim
e
(
n
s)
T
PD
+
T
PD
-
0.4
1
1.4
0.6
12
8
V
S
=5V
V
SD
=5mV
V
OD
=50mV
R
L
=2.3k
Propagation Delay vs Supply Voltage
4.5
4.4
4.2
4
3.8
3.7
3.6
3.5
4
4.2
4.8
5.2
5.6
5.8
6
V
S
(V)
D
e
la
y
Time
(ns)
T
PD
+
T
PD
-
4.4
5
5.4
V
SD
=V
S
+
V
OD
=50mV
R
L
=2.2k
4.6
4.3
4.1
3.9
EL5485, EL5486
5
Typical Performance Curves
(Continued)
Output with 50MHz Input
V
IN
=1V
P-P
Output with 50MHz Input
V
IN
=3V
P-P
Output
(5ns/div,
2V/div)
Input
(5ns/div,
0.5V/div)
Output
(5ns/div,
2V/div)
Input
(5ns/div,
2V/div)
Power Dissipation vs Ambient Temperature
JEDEC JESD51-3 Low Effective Thermal Conductivity Test Board
1.4
0
1
0.6
0.4
0.2
P
o
wer
Diss
ipation (W
)
1.2
0.8
0
125
100
75
50
25
Ambient Temperature (C)
150
85
QS
OP
24
=1
15
C
/W
SO
16
JA =
11
0C
/W
909mW
870mW
Power Dissipation vs Ambient Temperature
JEDEC JESD51-7 High Effective Thermal Conductivity Test Board
1.4
0
1
0.6
0.4
0.2
P
o
we
r Diss
ipation (W
)
1.2
0.8
0
125
100
75
50
25
Ambient Temperature (C)
150
85
1.250W
1.136W
Q
SO
P2
4=
88
C
/W
S
O
16
(0
.1
50
")=
80
C
/W
Propagation Delay vs Load Capacitance
V
IN
=1V
STEP
7.5
7
6
5
4
0
10
40
60
80
90
100
C
LOAD
(pF)
D
e
la
y
Time
(ns)
T
PD
+
T
PD
-
20
50
70
30
6.5
5.5
V
S
=5V
V
SD
=5V
V
OD
=50mV
R
L
=2.3k
4.5
EL5485, EL5486
PDF 
ZIP