Description

The FODM8071 is a 3.3 V / 5 V high−speed logic gate output

optocoupler, which supports isolated communications allowing digital

signals to communicate between systems without conducting ground

loops or hazardous voltages. It utilizes onsemi’s patented coplanar

packaging technology, OPTOPLANAR®, and optimized IC design to

achieve high−immunity, characterized by high common mode

rejection specifications.

This high−speed logic gate output optocoupler, housed in a compact

5−pin Mini−Flat package, consists of a highspeed AlGaAs LED at the

input coupled to a CMOS detector IC at the output. The detector IC

comprises an integrated photodiode, a high−speed transimpedance

amplifier and a voltage comparator with an output driver. The CMOS

technology coupled with a high−efficiency LED achieves low power

consumption as well as very high speed (55 ns propagation delay,

20 ns pulse width distortion).

Features

• High−noise Immunity Characterized by Common

Mode Rejection

♦ 20 kV/s Minimum Common Mode Rejection

• High Speed

♦ 20 Mbit/s Date Rate (NRZ)

♦ 55 ns Maximum Propagation Delay

♦ 20 ns Maximum Pulse Width Distortion

♦ 30 ns Maximum Propagation Delay Skew

• 3.3 V and 5 V CMOS Compatibility

• Specifications Guaranteed Over 3 V to 5.5 V Supply Voltage

and −40°C to +110°C Temperature Range

• Safety and Regulatory Approvals:

♦ UL1577, 3750 VACRMS for 1 Minute

♦ DIN EN/IEC60747−5−5

• These are Pb−Free Devices

Applications

• Microprocessor System Interface:

– SPI, I2C

• Industrial Fieldbus Communications:

– DeviceNet, CAN, RS485

• Programmable Logic Control

• Isolated Data Acquisition System

• Voltage Level Translator