LM2901HD datasheet(4/9 Pages) STMICROELECTRONICS

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Electrical characteristics

LM2901H

4/9

Electrical characteristics

Table 3.

VCC

+ =5V, V

- =GND, T

amb = 25°C (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Vio

Input offset voltage (1)

Tmin ≤ Tamb ≤Tmax

At output switch point, VO ≈ 1.4 V, RS = 0 with VCC

+ from 5 V to 30 V, and over the full input common-

mode range (0 V to VCC

+ –1.5 V).

Iio

Input offset current

Tmin ≤ Tamb ≤Tmax

550

150

Iib

Input bias current (II

+ or I

-)(2)

Tmin ≤ Tamb ≤Tmax

The direction of the input current is out of the IC due to the PNP input stage. This current is essentially

constant, independent of the state of the output, so there is no load on the reference of input lines

250

400

AVD

Large signal voltage gain

VCC=15V, R=15kΩ, Vo=1 to 11V

200

V/mV

ICC

Supply current (all comparators)

VCC = +5V, no load

VCC = +30V, no load

1.1

1.3

2.5

VID

Differential input voltage(3)

The response time specified is for a 100 mV input step with 5 mV overdrive.

VCC

VOL

Low level output voltage

Vid =-1V, Isink =4mA

Tmin ≤ Tamb ≤Tmax

250

400

700

IOH

High level output current

VCC =Vo = 30V, Vid =1V

Tmin ≤ Tamb ≤Tmax

0.1

µA

Isink

Output sink current

Vid = -1V, Vo = 1.5V

Tmin ≤ Tamb ≤Tmax

tre

Small signal response time(4)

RL = 5.1kΩ connected to VCC

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

remains within the common-mode range, the comparator will provide a proper output state. The low input

voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used).

1.3

μs

trel

Large signal response time(5)

TTL input, Vref =+1.4V, RL =5.1kΩ to VCC

– Output signal at 50% of final value

– Output signal at 95% of final value

Maximum values are guaranteed by design.

500

µs

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