LM2901HD datasheet(4/7 Pages) STMICROELECTRONICS

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Electrical Characteristics

LM2901H

4/7

Electrical Characteristics

Table 2.

VCC

+ =5V, V

- = GND, T

amb = 25°C (unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VI O

Input Offset Voltage (1)

At output switch point, VO

≈ 1.4V, RS = 0 with V

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

range (0V to VCC

+ –1.5V).

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax.

IIO

Input Offset Current

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax.

550

150

IIB

Input Bias Current (II

+ or I

-)(2)

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 no loading charge exists on the reference of input lines

Tamb =+ 25°C

Tmin ≤ Tamb ≤ Tmax.

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

VICM

Input Common Mode Voltage

Range (Vcc= 30V)

(3)

The input common-mode voltage of either input signal voltage should not be allowed to go negative by more

than 0.3V. The upper end of the common-mode voltage range is VCC

+ –1.5V, but either or both inputs can go

to +30V without damage.

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax.

VCC

+-1.5

VCC

+- 2

VID

Differential Input Voltage(4)

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

VCC

VOL

Low Level Output Voltage

Vid =-1V, Isink =4mA

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

250

400

700

IOH

High Level Output Current

VCC =Vo =30V, Vid =1V

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

0.1

µA

ISINK

Output Sink Current

Vid = -1V, Vo = 1.5V

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

tRE

Small Signal Response

Time(5)

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 –0.3V (or 0.3V bellow the negative power supply, if used)

RL = 5.1kΩ connected

to VCC

1.3

µs

tREL

Large Signal Response

Time(6)

Maximum values are guaranteed by design.

TTL input, Vref = +1.4V,

RL =5.1kΩ to VCC

– Output Signal at 50% of

final value

– Output Signal at 95% of

final value

500

µs

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