October 2014

DocID026955 Rev 1

1/11

This is information on a product in full production.

www.st.com

RT2903H

RobuST low-power dual voltage comparators

Datasheet - production data

Features

•

Wide single supply voltage range or dual

supplies: 2 V to 36 V or ±1 V to ±18 V

•

Very low supply current (0.4 mA)

independent of supply voltage

(1 mW/comparator at 5 V)

•

Low input bias current: 25 nA typ.

•

Low input offset current: ±5 nA typ.

•

Input common-mode voltage range includes

ground

•

Low output saturation voltage: 250 mV typ.

•

Differential input voltage range equal to the

supply voltage

•

TTL, DTL, ECL, MOS, CMOS compatible

outputs

•

Intended for use in aerospace and defense

applications:

−

Dedicated traceability and part marking

−

Approval documents available for

production parts

−

Adapted extended life time and

obsolescence management

−

Extended product change notification

process

−

Designed and manufactured to meet

sub ppm quality goals

−

Advanced mold and frame designs for

superior resilience to harsh

environments (acceleration, EMI,

thermal, humidity)

−

Extended screening capability on

request

−

Single fabrication, assembly, and test

site

−

Temperature range (-40 °C to 150 °C)

Applications

•

Aerospace and defense

•

Harsh environments

Description

This device consists of two independent low-

power voltage comparators designed specifically

to operate from a single power supply over a

wide range of voltages. Operation from split

power supplies is also possible.

These

comparators

also

have

a

unique

characteristic in that the input common-mode

voltage range includes ground even though

operated from a single power supply voltage.

D

SO8

(plastic micropackage)

Pin connections (top view)

1 - Output 1

2 - Inverting inpput 1

3 - Non-inverting input 1

4 - VCC

-

5 - Non-inverting input 2

6 - Inverting input 2

7 - Output 2

8 - VCC

+