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 MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER

ALD2303A/ALD2303

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

GENERAL DESCRIPTION

The ALD2303A/ALD2303 is a precision monolithic high performance

dual voltage comparator built with advanced silicon gate CMOS

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

The ALD2303A/ALD2303 is ideal for high precision micropower volt-

age comparator applications, especially low level signal detection

circuits requiring low standby power, yet retaining high output current

capability.

Operating Temperature Range *

0°C to +70°C0°C to +70°C

-55°C to +125°C

8-Pin

8-Pin

8-Pin

Small Outline

Plastic Dip

CERDIP

Package (SOIC)

Package

Package

ALD2303ASAL

ALD2303APAL

ALD2303ADA

ALD2303SAL

ALD2303APAL

ALD2303DA

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

BLOCK DIAGRAM

(4) GND

NONINVERTING INPUT

INVERTING INPUT

NONINVERTING INPUT

INVERTING INPUT

FEATURES

• 3V, 5V, and 10V supply

• Guaranteed to drive 200Ω loads

• Fanout of 30LS TTL loads

• Guaranteed maximum supply current of

20µA for each comparator

• Pinout of LM193 type industry standard

comparators

• Extremely low input bias currents

-- typically 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 -- typically 60mA

• Low supply current spikes

• High gain -- 100V/mV

PIN CONFIGURATION

1

2

3

4

8

7

6

5

OUT 1

-IN 1

+IN 1

GND

V+

OUT 2

-IN 2

+IN 2

SAL, PAL, DA PACKAGES