ald2302apa Advanced Linear Devices Inc (ALD), ald2302apa Datasheet

ald2302apa

Manufacturer Part Number

ald2302apa

Description

Dual Precision Cmos Voltage Comparator With Push-pull Driver

Manufacturer

Advanced Linear Devices Inc (ALD)

Datasheet

1.ALD2302APA.pdf (6 pages)

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ORDERING INFORMATION

GENERAL DESCRIPTION

The ALD2302A/ALD2302 are monolithic precision high performance

dual voltage comparators built with advanced silicon gate CMOS tech-

nology. The primary features are: very high typical input impedance of

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

( 5V) power supply operation.

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. The ALD2302A/

ALD2302 can also be used in wired-OR connection with other open

drain circuits such as the ALD2301/ALD2303 voltage comparators.

The ALD2302A/ALD2302 voltage comparators are ideal for a great

variety of applications, especially in low level signal detection circuits

which require low standby power and high output current. For quad

packages, use the ALD4302 quad voltage comparator.

* Contact factory for industrial temperature range

APPLICATIONS

• PCMCIA instruments

• MOSFET driver

• High source impedance voltage

• 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

• On-chip input and output buffers

• Precision voltage comparison capability

• Eliminate need for second power supply

• Eliminate pull-up resistor

comparison circuits

-55 C to +125 C

8-Pin

CERDIP

Package

ALD2302A DA

ALD2302 DA

; low input bias current of 10pA; fast response time of 180ns; very

DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER

INEAR

DVANCED

EVICES,

Operating Temperature Range *

NC.

0 C to +70 C

8-Pin

Small Outline

Package (SOIC)

ALD2302A SA

ALD2302 SA

0 C to +70 C

8-Pin

Plastic Dip

Package

ALD2302A PA

ALD2302 PA

FEATURES

• Guaranteed to drive 200 loads

• Fanout of 30LS TTL loads

• Low supply current of 175 A each comparator

• Pinout of LM193 type industry standard

• Extremely low input bias currents -- 10pA

• Virtually eliminates source impedance effects

• Low operating supply voltage of 4V to 12V

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

• High speed for both large and small signals --

• CMOS, NMOS and TTL compatible

• Push-pull outputs-current sourcing/ sinking

• High output sinking current -- 60mA

• Low supply current spikes

PIN CONFIGURATION

BLOCK DIAGRAM

OUT

NONINVERTING INPUT

+IN

comparators

180ns for TTL inputs and 400ns for 20mV

overdrive

GND

-IN

INVERTING INPUT

+IN

DA, PA, SA PACKAGE

+IN

-IN

(2)

(3)

(6)

(5)

TOP VIEW

ALD2302A/ALD2302

(8) V

(4) GND

(1) OUT

(7) OUT

OUT

+IN

-IN

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ald2302apa Summary of contents

Page 1

A DVANCED L INEAR D I EVICES, NC. DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER GENERAL DESCRIPTION The ALD2302A/ALD2302 are monolithic precision high performance dual voltage comparators built with advanced silicon gate CMOS tech- nology. The primary features are: ...

Page 2

ABSOLUTE MAXIMUM RATINGS + Supply voltage, V Differential input voltage range Power dissipation Operating temperature range Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS + +5V unless otherwise specified A Parameter Symbol ...

Page 3

TYPICAL PERFORMANCE CHARACTERISTICS SATURATION VOL TAGE vs. TEMPERATURE 1 2. 50mA SINK 1.0 0.8 0.6 0.4 0.2 0 -55 - TEM PERATURE ( C) COMMON - MODE VOLTAGE REFERRED TO SUPPL ...

Page 4

TYPICAL PERFORMANCE CHARACTERISTICS TOTAL SUPPLY CURRENT vs. TOTAL SUPPLY VOLTAGE V + 500 - + 400 300 200 100 2.0 4.0 6.0 SUPPLY VOLTAGE (V) NORMALIZED INPUT OFFSET VOLTAGE vs. TEMPERATURE + -55 -25 ...

Page 5

ZERO CROSSING DETECTOR + -5V 1/2 ALD2302 MULTIPLE RELAY DRIVE +5V V REF 1/2 ALD2302 VOLTAGE LEVEL TRANSLATOR +10V V REF 1/2 ALD2302 V = 1.4V for TTL ...

Page 6

PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER This circuit eliminates crossover current in the complementary power transistors. The outputs can be used to source and sink different loads or tied together to provide push-pull drive of the same load. V REF V ...

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