AP393

LOW POWER LOW OFFSET VOLTAGE DUAL

COMPARATORS

AP393

Document number: DS31006 Rev. 8 - 2

1 of 15

www.diodes.com

July 2010

© Diodes Incorporated

Description

The AP393 consists of two independent precision voltage

comparators with an offset voltage specification as low as

2.0mV max for two comparators which were designed

specifically to operate from a single power supply over a wide

range of voltages. Operation from split power supplies is also

possible

and the low power supply current drain is

independent of the magnitude of the power supply voltage.

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.

Application areas include limit comparators, simple analog to

digital

converters;

pulse,

squarewave

and

time

delay

generators;

wide

range

VCO;

MOS

clock

timers;

multivibrators and high voltage digital logic gates. The AP393

is designed to directly interface with TTL and CMOS. When

operated from both plus and minus power supplies, the

AP393 will directly interface with MOS logic where their low

power

drain

is

a

distinct

advantage

over

standard

comparators.

Features

•

Wide supply

•

Voltage range: 2.0V to 36V

•

Single or dual supplies: ±1.0V to ±18V

•

Very low supply current drain (0.4mA) – independent of

supply voltage

•

Low input biasing current: 25nA

•

Low input offset current: ±5nA

•

Maximum offset voltage: ±3mV

•

Input common-mode voltage range includes ground

•

Differential input voltage range equal to the power supply

voltage

•

Low output saturation voltage: 250mV at 4mA

•

Output voltage compatible with TTL, DTL, ECL, MOS and

CMOS logic systems

•

Lead Free packages: SOP-8L and PDIP-8L

•

SOP-8L and PDIP-8L: Available in “Green” Molding

Compound (No Br, Sb)

•

Lead Free Finish/RoHS Compliant (Note 1)

Pin Assignments

SOP-8L

1

2

3

45

6

7

8

( Top View )

INVERTING INPUT 1

GND

AP393

NON-INVERTING INPUT 1

OUTPUT 2

OUTPUT 1

V

+

INVERTING INPUT 2

NON-INVERTING INPUT 2

PDIP-8L

1

2

3

45

6

7

8

( Top View )

INVERTING INPUT 1

GND

AP393

NON-INVERTING INPUT 1

OUTPUT 2

OUTPUT 1

V

+

INVERTING INPUT 2

NON-INVERTING INPUT 2

Application

•

High precision comparators

•

Reduced VOS drift over temperature

•

Eliminates need for dual supplies

•

Allows sensing near ground

•

Compatible with all forms of logic

•

Power drain suitable for battery operation

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.