LM2901YDT datasheet(4/13 Pages) STMICROELECTRONICS

Nome de Peças	LM2901YDT

Descrição Electrónicos	Low power quad voltage comparator

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Electrical characteristics

LM2901

4/13

3

Electrical characteristics

Table 3.

Electrical characteristics at VCC

+ = 5V, V

CC

- = GND, T

amb = 25°C

(unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Vio

Input offset voltage (1)

Tmin ≤ Tamb ≤ Tmax

1.

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

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

range (0V to VCC

+ –1.5V).

17

15

mV

Iio

Input offset current

Tmin ≤ Tamb ≤ Tmax

550

150

nA

Iib

Input bias current (II

+ or I

I

-) (2)

Tmin ≤ Tamb ≤ Tmax

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 there is no loading charge on the reference of input

lines.

25

250

400

nA

Avd

Large signal voltage gain

(VCC = 15V,RL=15kΩ, Vo=1 to 11V)

25

200

V/mV

ICC

Supply current (all comparators)

VCC = +5V, no load

VCC = +30V, no load

1.1

1.3

2

2.5

mA

Vid

Differential input voltage(3)

3.

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

VCC

+

V

VOL

Low level output voltage

Vid = -1V, Isink = 4mA

Tmin ≤ Tamb ≤ Tmax

250

400

700

mV

IOH

High level output current

(VCC =Vo =30V, Vid = 1V)

Tmin ≤ Tamb ≤ Tmax

0.1

1

nA

µA

Isink

Output sink current (Vid = -1V,Vo = 1.5V)

6

16

mA

tres

Small signal response time(4)

(RL = 5.1kΩ connected to VCC

+)

4.

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 below the negative power supply, if used).

1.3

µs

trel

Large signal response time(5)

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

+)

Output signal at 50% of final value

Output signal at 95% of final value

5.

Maximum values are guaranteed by design.

500

1

ns

µs

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