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Electrical Characteristics

Electrical Characteristics, Operational Amplifier Only

LM392

LOW-POWER OPERATIONAL AMPLIFIER AND VOLTAGE COMPARATOR

SLOS466 – JANUARY 2006

V+ = 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

25°C

±2

±5

Input offset voltage

mV

0

°C to 70°C

±7

25°C

50

205

Input bias current

nA

IN(+) or IN(–)

0

°C to 70°C

400

25°C

±5

±50

Input offset current

IN(+) – IN(–)

nA

0

°C to 70°C

150

25°C

0

V+ – 1.5

V+ = 30 V

V

0

°C to 70°C

0

V+ – 2

V+ = 30 V

1

2

I+

Supply current

0

°C to 70°C

mA

V+ = 5 V

0.5

1

Amplifier-to-amplifier coupling

25°C

–100

dB

Differential input voltage

0

°C to 70°C

32

V

(1)

The direction of the input current is out of the device due to the PNP input stage. This current essentially is constant and independent of

the state of the output, so no loading change exists on the input lines.

(2)

The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end

of the common-mode voltage range is V+ – 1.5 V, but either or both inputs can go to 32 V without damage.

(3)

Due to proximity of external components, ensure that coupling is not originating via the stray capacitance between these external parts.

This typically can be detected, as this type of capacitive coupling increases at higher frequencies.

(4)

Positive excursions of input voltage may exceed the power-supply level. As long as the other input voltage remains within the

common-mode range, the comparator provides a proper output state. The input voltage to the operational amplifier should not exceed

the power-supply level. The input voltage state must not be less than –0.3 V (or 0.3 V below the magnitude of the negative power

supply, if used) on either amplifier.

V+ = 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Large signal voltage gain

25°C

25

100

V/mV

Output voltage swing

25°C

0

V+ – 1.5

V

Common-mode rejection

CMRR

25°C

65

70

dB

ratio

Power-supply

25°C

65

100

dB

rejection ratio

Output source current

25°C

20

40

mA

10

20

mA

Output sink current

25°C

12

50

µA

V+ = 15 V

αV

IO

Input offset voltage drift

0

°C to 70°C

7

µV/°C

αI

IO

Input offset current drift

0

°C to 70°C

10

pA/

°C

4

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