Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286

www.aldinc.com

DUAL PRECISION CMOS VOLTAGE COMPARATOR

WITH PUSH-PULL DRIVER

ALD2332A/ALD2332B/ALD2332

APPLICATIONS

• MOSFET driver

• High source impedance voltage comparison

circuits

• Multiple limit window comparator

• Power supply voltage monitor

• Photo-detector sensor circuit

• High speed LED driver

• Oscillators

• Battery operated instruments

• Remote signal detection

• Multiple relay drivers

BENEFITS

• Simple precision reference voltage setting

• On-chip input pre-amplifier and output

buffers

• Precision voltage comparison without

pre-amplifier

• Eliminate need for second power supply

• Eliminate pull-up resistor

GENERAL DESCRIPTION

The ALD2332A/ALD2332B/ALD2332 is a monolithic high performance

dual precision voltage comparator built with advanced silicon gate

tions. The ALD2332A/ALD2332B/ALD2332 offers ultra-low input offset

voltages and currents at its input pre-amplifier, precision voltage com-

parator and high-current output driver integrated on-chip, in one industry

standard pinout 8 Lead PDIP or SOIC package. Primary features include:

very high typical input impedance of 1012Ω; low input bias current of

10pA; fast response time of 520ns with only 10mV input step signal; very

low power dissipation of 175µA per comparator; single (+5V) or dual

(±5V) power supply operation; and 50mA push-pull output drivers.

The input voltage range includes ground, which makes these compara-

tors ideal for single supply low level signal detection with high source

impedance.

The outputs can source and sink current allowing for

application flexibility. They can be used in either wired-OR connection

without pull-up resistor or push-pull configuration. ALD2332A/ALD2332B/

ALD2332 can also be used in wired-OR connection with other open

drain circuits such as the ALD2331/ALD2303 voltage comparators.

The ALD2332A/ALD2332B/ALD2332 voltage comparators are ideal for

a great variety of precision analog voltage comparator applications,

especially in low level signal detection circuits which require low standby

power and high output current.

FEATURES

• Guaranteed to drive 200Ω loads

• Fanout of 30LS TTL loads

• Low supply current of 175µA each comparator

• Pinout of LM193 type industry standard voltage comparators

• Extremely low input bias currents -- typically 10pA

• Virtually eliminates source impedance effects

• Low operating supply voltage of 4V to 10V

• Single (+5V) and dual supply (±5V) operation

• High speed for both large and small signals --

180ns for TTL inputs and 400ns for 20mV overdrive

• CMOS, NMOS and TTL compatible

• Push-pull outputs-current sourcing/ sinking

• High output sinking current -- typically 50mA

• Low supply current spikes

• High gain -- 100V/mV

PIN CONFIGURATION

BLOCK DIAGRAM

(4) GND

NONINVERTING INPUT

INVERTING INPUT

NONINVERTING INPUT

INVERTING INPUT

1

2

3

4

8

7

6

5

GND

SAL, PAL PACKAGES

Operating Temperature Range *

0°C to +70°C

0°C to +70°C

8-Pin Small Outline

8-PinPlastic

Package (SOIC)

Dip Package

ALD2332ASAL

ALD2332APAL

ALD2332BSAL

ALD2332BPAL

ALD2332SAL

ALD2332PAL

* Contact factory for leaded (non-RoHS) or high temperature versions.