Operating Temperature Range *

-55

°C to +125°C0°C to +70°C0°C to +70°C

8-Pin

Q8-Pin

8-Pin

CERDIP

Small Outline

Plastic Dip

Package

Package (SOIC)

Package

ALD2303A DA

ALD2303A SA

ALD2303A PA

ALD2303 DA

ALD2303 SA

ALD2303 PA

DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER

ALD2303A/ALD2303

ORDERING INFORMATION

APPLICATIONS

• Sensor detection circuits

• PCMCIA instruments

• MOSFET driver

• High source impedance voltage

comparison circuits

• Multiple limit window comparator

• Power supply voltage monitor

• Photodetector sensor circuit

• High speed LED driver

• Oscillators

• Battery operated instruments

• Remote signal detection

• Multiple relay drivers

BENEFITS

• Extremely low power and high precision combination

• Built-in high input impedance buffer

• Built-in output driver with up to 60mA sink current

FEATURES

• 3V, 5V and 12V supply

• Guaranteed to drive 200

Ω loads

• Fanout of 30LS TTL loads

• Guaranteed maximum supply current of

20

µA for each comparator

• Pinout of LM193 type industry standard

comparators

• Extremely low input bias currents -- 10pA

• Virtually eliminates source impedance

effects

• Single (+5V) and dual supply (

±5V)

operation

• CMOS, NMOS and TTL compatible

• Open drain wired-OR outputs

• High output sinking current -- 60mA

• Low supply current spikes

• High gain -- 100V/mV

GENERAL DESCRIPTION

The ALD2303A/ALD2303 is a precision monolithic high performance

dual voltage comparator built with advanced silicon gate CMOS tech-

Ω; low

input bias current of 10pA; very low power dissipation of 7.5

µA per

comparator; and single (+5V) or dual (

±5V) power supply operation.

The input voltage range includes ground, making this comparator ideal

for single supply low level signal detection with high source impedance.

The ALD2303A/ALD2303 can be used in connection with other voltage

comparator circuits such as the ALD2301/ALD2302/ALD4302 voltage

comparators. The output can be connected to a higher external voltage

The ALD2303A/ALD2303 is ideal for high precision micropower voltage

comparator applications, especially low level signal detection circuits

requiring low standby power, yet retaining high output current

capability.

* Contact factory for industrial temperature range

PIN CONFIGURATION

BLOCK DIAGRAM

1

2

3

4

8

7

6

5

OUT 1

-IN 1

+IN 1

GND

V+

OUT 2

-IN 2

+IN 2

TOP VIEW

DA, PA, SA PACKAGE

(4) GND

NONINVERTING INPUT

INVERTING INPUT

NONINVERTING INPUT

INVERTING INPUT

© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com