1-402

High Speed CMOS

Optocouplers

Technical Data

Features

• 1

• Compatibility with All +5 V

CMOS and TTL Logic

Families

• No External Components

Required for Logic Interface

• High Speed: 15 MBd

(HCPL-7100) and 50 MBd

(HCPL-7101) Guaranteed

• Low Power Consumption

• Safety Approvals

UL 1577 (3750 Vac/1 Min)

VDE 0884 (V

CSA

• 3-State Output

• 3750 Vac/1 Minute Dielectric

Withstand

• High Common Mode

Transient Immunity

Applications

• Multiplexed Data

Transmission

• Computer-Peripheral

Interface

• Microprocessor System

Interface

• Digital Isolation for A/D,

D/A Conversion

• Instrument Input/Output

Isolation

• Motor Control

• Power Inverter

Description

The HCPL-7100/7101 optocoup-

ler combines the latest CMOS IC

technology, a new high-speed

high-efficiency AlGaAs LED, and

an optimized light coupling system

to achieve outstanding perfor-

mance with very low power

consumption. It requires only two

bypass capacitors for complete

CMOS/TTL compatibility.

Basic building blocks of the

HCPL-7100/7101 are a CMOS

LED driver IC, an AlGaAs LED,

and a CMOS detector IC. A CMOS

or TTL logic input signal controls

the LED driver IC which supplies

current to the LED. The detector

IC incorporates an integrated

photodiode, a high-speed trans-

impedance amplifier and a voltage

comparator with hysteresis. The

3-state output is CMOS and TTL

compatible and is controlled by

the output enable pin, V

The HCPL-7100/7101 consumes

very little power, due to the

CMOS IC technology and the light

coupling system. The entire

optocoupler typically uses only 10

mA of supply current, including

the LED current.

World-wide safety approval and

3750 Vac/1 minute dielectric with-

stand is achieved with our

patented “light-pipe” optocoupler

packaging technology.

The HCPL-7100/7101 provides he

user with an easy-to-use CMOS or

TTL compatible optocoupler

ideally suited for a variety of

applications where high speed

and low power consumption are

desired.

HCPL-7100

HCPL-7101

Schematic

CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to

prevent damage and/or degradation which may be induced by ESD.

H

TRUTH TABLE

(POSITIVE LOGIC)

INPUT

ENABLE

OUTPUT

HH

Z

LH

Z

HL

H

LL

L

5965-3578E