LM231, LM331

www.ti.com

SNOSBI2B – JUNE 1999 – REVISED MARCH 2013

Electrical Characteristics (continued)

All specifications apply in the circuit of Figure 16, with 4.0V

Parameter

Conditions

Min

Typ

Max

Units

Over Range (Beyond Full-Scale) Frequency

10

%

INPUT COMPARATOR

Offset Voltage

±3

±10

mV

LM231/LM331

±4

±14

mV

LM231A/LM331A

±3

±10

mV

Bias Current

−80

−300

nA

Offset Current

±8

±100

nA

Common-Mode Range

−0.2

V

0

TIMER

Timer Threshold Voltage, Pin 5

0.63

0.667

0.70

Input Bias Current, Pin 5

All Devices

0V

±10

±100

nA

LM231/LM331

200

1000

nA

LM231A/LM331A

200

500

nA

I = 5 mA

0.22

0.5

V

CURRENT SOURCE (Pin 1)

Output Current

LM231, LM231A

126

135

144

μA

LM331, LM331A

116

136

156

μA

Change with Voltage

0V

0.2

1.0

μA

Current Source OFF Leakage

LM231, LM231A, LM331, LM331A

0.02

10.0

nA

All Devices

2.0

50.0

nA

Operating Range of Current (Typical)

(10 to 500)

μA

REFERENCE VOLTAGE (Pin 2)

LM231, LM231A

1.76

1.89

2.02

LM331, LM331A

1.70

1.89

2.08

Stability vs. Temperature

±60

ppm/°C

Stability vs. Time, 1000 Hours

±0.1

%

LOGIC OUTPUT (Pin 3)

I = 5 mA

0.15

0.50

V

0.10

0.40

V

OFF Leakage

±0.05

1.0

μA

SUPPLY CURRENT

2.0

3.0

4.0

mA

LM231, LM231A

2.5

4.0

6.0

mA

1.5

3.0

6.0

mA

LM331, LM331A

2.0

4.0

8.0

mA

Copyright © 1999–2013, Texas Instruments Incorporated

Submit Documentation Feedback

3

Product Folder Links: LM231 LM331