LM710
Voltage Comparator
General Description
The LM710 series are high-speed voltage comparators in-
tended for use as an accurate, low-level digital level sensor
or as a replacement for operational amplifiers in comparator
applications where speed is of prime importance. The circuit
has a differential input and a single-ended output, with satu-
rated output levels compatible with practically all types of in-
tegrated logic.
The device is built on a single silicon chip which insures low
offset and thermal drift. The use of a minimum number of
stages along with minority-carrier lifetime control (gold dop-
ing) makes the circuit much faster than operational amplifi-
ers in saturating comparator applications. In fact, the low
stray and wiring capacitances that can be realized with
monolithic construction make the device difficult to duplicate
with discrete components operating at equivalent power lev-
els.
The LM710 series are useful as pulse height discriminators,
voltage comparators in high-speed A/D converters or go,
no-go detectors in automatic test equipment. They also have
applications in digital systems as an adjustable-threshold
line receiver or an interface between logic types. In addition,
the low cost of the units suggests them for applications re-
placing relatively simple discrete component circuitry.
Schematic and Connection Diagrams
DS010410-1
Ceramic Flatpak Package
DS010410-9
* Also available per JM38510/10301
Order Number LM710AMW/883
*
See NS Package Number W10A
February 1995
LM710
V
oltage
Comparator
LM710
1997 National Semiconductor Corporation
DS010410
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PrintDate=1997/05/16 PrintTime=10:46:07 7730 ds010410 Rev. No. 1
Proof
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Schematic and Connection Diagrams
(Continued)
* Also available per JM38510/10301
Metal Can Package
DS010410-2
Pin 4 is connected to case.
Top View
Order Number LM710AMH/883
*
, LM710H,
LM710H/883 or LM710CH
See NS Package Number H08C
Dual-In-Line Package
DS010410-3
Top View
Order Number
LM710AMJ/883
*
or LM710CN
See NS Package Number N14A or J14A
PrintDate=1997/05/16 PrintTime=10:46:07 7730 ds010410 Rev. No. 1
Proof
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Absolute Maximum Ratings
(Note *NO
TARGET FOR FNXref NS0053*)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Positive Supply Voltage
+14V
Negative Supply Voltage
-7V
Peak Output Current
10 mA
Output Short Circuit Duration
10 seconds
Differential Input Voltage
5V
Input Voltage
7V
Power Dissipation
TO-99 (Note 1)
700 mW
Plastic Dual-In-Line Package
(Note 2)
950 mW
Operating Temperature Range
LM710
-55C to +125C
LM710C
0C to +70C
Storage Temperature Range
-65C to +150C
Lead Temperature
(Soldering, 10 sec.)
260C
Electrical Characteristics
(Note 3)
Parameter
Conditions
LM710
LM710C
Units
Min
Typ
Max
Min
Typ
Max
Input Offset Voltage
R
S
200
, V
CM
= 0V, T
A
= 25C
0.6
2.0
1.6
5.0
mV
Input Offset Current
V
OUT
= 1.4V, T
A
= 25C
0.75
3.0
1.8
5.0
A
Input Bias Current
T
A
= 25C
13
20
16
25
A
Voltage Gain
T
A
= 25C
1250
1700
1000
1500
Output Resistance
T
A
= 25C
200
200
Output Sink Current
V
OUT
= 0, T
A
= 25C
V
IN
5 mV
2.0
2.5
mA
V
IN
10 mV
1.6
2.5
mA
Response Time
T
A
= 25C (Note 4)
40
40
ns
Input Offset Voltage
R
S
200
, V
CM
= 0V
3.0
6.5
mV
Average Temperature Coefficient
T
MIN
T
A
T
MAX
3.0
10
5.0
20
V/C
of Input Offset Voltage
R
S
50
Input Offset Current
T
A
= T
A MAX
0.25
3.0
7.5
A
T
A
= T
A MIN
1.8
7.0
7.5
A
Average Temperature Coefficient
25C
T
A
T
MAX
5.0
25
15
50
nA/C
of Input Offset Current
T
MIN
T
A
25C
15
75
24
100
nA/C
Input Bias Current
T
A
= T
MIN
27
45
25
40
A
Input Voltage Range
V
-
= -7V
5.0
5.0
V
Common-Mode Rejection Ratio
R
S
200
80
100
70
98
dB
Differential Input Voltage Range
5.0
5.0
V
Voltage Gain
1000
800
V/V
Positive Output Level
-5 mA
I
OUT
0
V
IN
5 mV
2.5
3.2
4.0
V
V
IN
10 mV
2.5
3.2
4.0
V
Negative Output Level
V
IN
5 mV
-1.0
-0.5
0
V
V
IN
10 mV
-1.0
-0.5
0
V
Output Sink Current
V
IN
5 mV, V
OUT
= 0
T
A
= 125C
0.5
1.7
mA
T
A
= -55C
1.0
2.3
mA
V
IN
10 mV, V
OUT
= 0
0.5
mA
0C
T
A
+70C
Positive Supply Current
V
IN
5 mV
5.2
9.0
mA
V
IN
10 mV
5.2
9.0
mA
Negative Supply Current
V
IN
5 mV
4.6
7.0
mA
V
IN
10 mV
4.6
7.0
mA
3
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PrintDate=1997/05/16 PrintTime=10:46:10 7730 ds010410 Rev. No. 1
Proof
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Electrical Characteristics
(Note 3) (Continued)
Parameter
Conditions
LM710
LM710C
Units
Min
Typ
Max
Min
Typ
Max
Power Consumption
I
OUT
= 0
V
IN
5 mV
90
150
mW
V
IN
10 mV
150
mW
Note 1: Rating applies for ambient temperatures of 25C; derate linearly at 5.6 mW/C for ambient temperatures above 25C.
Note 2: Derate linearly at 9.5 mW/C for ambient temperatures above 25C.
Note 3: These specifications appy for V
+
= 12V, V
-
= -6V, -55C
T
A
+125C for LM710 and 0C
T
A
+70C for LM710C unless otherwise specified: The input
offset voltage and input offset current (see definitions) are specified for a logic threshold voltage of 1.8V at -55C, 1.4V at 25C, and 1V at 125C for LM710 and 1.5V
at 0C, 1.4V at 25C, and 1.2V at 70C for LM710C.
Note 4: The response time specified (see definitions) is for a 100 mV input step with 5 mV overdrive (LM710) or a 10 mV overdrive (LM710C).
Typical Applications
Schmitt Trigger
DS010410-4
Line Receive with Increased
Output Sink Current
DS010410-5
Pulse Width Modulator
DS010410-6
Level Detector with Lamp Driver
DS010410-7
PrintDate=1997/05/16 PrintTime=10:46:11 7730 ds010410 Rev. No. 1
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Typical Performance Characteristics
Transfer Function
DS010410-10
Voltage Gain
DS010410-11
Voltage Gain
DS010410-12
Input Bias Current
DS010410-13
Input Offset Current
DS010410-14
Supply Current
DS010410-15
Response Time for
Various Input Overdrives
DS010410-16
Response Time for
Various Input Overdrives
DS010410-17
Common Mode Pulse
Response
DS010410-18
5
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