T

Parameter

Conditions

Min

Typ

Max

Units

TIMER

V

I = 5 mA

0.22

0.5

V

CURRENT SOURCE (Pin 1)

Output Current

R

LM231, LM231A

126

135

144

µA

LM331, LM331A

116

136

156

µA

Change with Voltage

0V

≤ V

0.2

1.0

µA

Current Source OFF Leakage

LM231, LM231A, LM331, LM331A

0.02

10.0

nA

All Devices

T

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

V

DC

LM331, LM331A

1.70

1.89

2.08

V

DC

Stability vs Temperature

ppm/˚C

Stability vs Time, 1000 Hours

%

LOGIC OUTPUT (Pin 3)

V

SAT

I=5 mA

0.15

0.50

V

I=3.2 mA (2 TTL Loads), T

0.10

0.40

V

OFF Leakage

1.0

µA

SUPPLY CURRENT

LM231, LM231A

V

2.0

3.0

4.0

mA

LM331, LM331A

V

2.5

4.0

6.0

mA

V

1.5

3.0

6.0

mA

V

2.0

4.0

8.0

mA

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating

the device beyond its specified operating conditions.

Note 2: All specifications apply in the circuit of

Figure 4, with 4.0V

Note 4: Human body model, 100 pF discharged through a 1.5 k

Ω resistor.

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