Electrical Characteristics (Continued)

All specifications apply in the circuit of Figure 4, with 4.0V

≤ V

S

≤ 40V, T

A=25˚C, unless otherwise specified.

Parameter

Conditions

Min

Typ

Max

Units

CURRENT SOURCE (Pin 1)

LM231, LM231A, LM331, LM331A

0.02

10.0

nA

All Devices

T

A =TMAX

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

±60

ppm/˚C

Stability vs. Time, 1000 Hours

±0.1

%

LOGIC OUTPUT (Pin 3)

V

SAT

I=5mA

0.15

0.50

V

I = 3.2 mA (2 TTL Loads),

T

MIN

≤ T

A

≤ T

MAX

0.10

0.40

V

OFF Leakage

±0.05

1.0

µA

SUPPLY CURRENT

LM231, LM231A

V

S = 5V

2.0

3.0

4.0

mA

V

S = 40V

2.5

4.0

6.0

mA

LM331, LM331A

V

S = 5V

1.5

3.0

6.0

mA

V

S = 40V

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 voltages are measured with respect to GND = 0V, unless otherwise noted.

Note 3: The absolute maximum junction temperature (TJmax) for this device is 150˚C. The maximum allowable power dissipation is dictated by TJmax, the

junction-to-ambient thermal resistance (

θJA), and the ambient temperature TA, and can be calculated using the formula PDmax=(TJmax - TA)/ θJA. The values for

maximum power dissipation will be reached only when the device is operated in a severe fault condition (e.g., when input or output pins are driven beyond the power

supply voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided.

Note 4: Nonlinearity is defined as the deviation of fOUT from VIN x (10 kHz/−10 VDC) when the circuit has been trimmed for zero error at 10 Hz and at 10 kHz, over

the frequency range 1 Hz to 11 kHz. For the timing capacitor, CT, use NPO ceramic, Teflon®, or polystyrene.

Note 5: Human body model, 100 pF discharged through a 1.5 k

Ω resistor.