LM231, LM331
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SNOSBI2B –JUNE 1999–REVISED MARCH 2013
Electrical Characteristics (continued)
All specifications apply in the circuit of Figure 16, with 4.0V ≤ VS ≤ 40V, TA=25°C, unless otherwise specified.
Parameter
Over Range (Beyond Full-Scale) Frequency
INPUT COMPARATOR
Offset Voltage
Conditions
Min
Typ
Max
Units
VIN = −11V
10
%
±3
±4
±10
±14
mV
mV
mV
nA
LM231/LM331
T
MIN ≤ TA ≤ TMAX
MIN ≤ TA ≤ TMAX
LM231A/LM331A
T
±3
±10
Bias Current
−80
±8
−300
±100
Offset Current
nA
V
CC−2.
0
Common-Mode Range
TMIN ≤ TA ≤ TMAX
−0.2
V
TIMER
Timer Threshold Voltage, Pin 5
Input Bias Current, Pin 5
All Devices
0.63
0.667
0.70
× VS
VS = 15V
0V ≤ VPIN 5 ≤ 9.9V
VPIN 5 = 10V
VPIN 5 = 10V
I = 5 mA
±10
200
200
0.22
±100
1000
500
nA
nA
nA
V
LM231/LM331
LM231A/LM331A
VSAT PIN 5 (Reset)
0.5
CURRENT SOURCE (Pin 1)
Output Current
LM231, LM231A
RS = 14 kΩ, VPIN 1 = 0
0V ≤ VPIN 1 ≤ 10V
126
116
135
136
0.2
144
156
1.0
μA
μA
μA
LM331, LM331A
Change with Voltage
Current Source OFF Leakage
LM231, LM231A, LM331, LM331A
All Devices
0.02
2.0
10.0
50.0
nA
nA
μA
TA = TMAX
Operating Range of Current (Typical)
REFERENCE VOLTAGE (Pin 2)
LM231, LM231A
(10 to 500)
1.76
1.70
1.89
1.89
±60
2.02
2.08
VDC
VDC
LM331, LM331A
Stability vs. Temperature
Stability vs. Time, 1000 Hours
LOGIC OUTPUT (Pin 3)
ppm/°C
%
±0.1
I = 5 mA
0.15
0.10
0.50
0.40
1.0
V
V
VSAT
I = 3.2 mA (2 TTL Loads), TMIN ≤ TA
TMAX
≤
OFF Leakage
±0.05
μA
SUPPLY CURRENT
VS = 5V
VS = 40V
VS = 5V
VS = 40V
2.0
2.5
1.5
2.0
3.0
4.0
3.0
4.0
4.0
6.0
6.0
8.0
mA
mA
mA
mA
LM231, LM231A
LM331, LM331A
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