FODM8061_10 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – High Noise Immunity, 3.3V/5V, 10Mbit/sec Logic Gate Output (Open Collector) Optocoupler

May 2010
FODM8061
High Noise Immunity, 3.3V/5V, 10Mbit/sec
Logic Gate Output (Open Collector) Optocoupler
Features
■ High Noise Immunity characterized by common mode
transient immunity (CMTi)
– 20kV/µs Minimum CMTi
■ High Speed
– 10Mbit/sec Date Rate (NRZ)
– 80ns max. Propagation Delay
– 25ns max. Pulse Width Distortion
– 40ns max. Propagation Delay Skew
■ 3.3V LVTTL/LVCMOS Compatibility
■ Specifications guaranteed over 3V to 5.5V supply
voltage and -40°C to +110°C temperature range
■ Safety and regulatory approvals
– UL1577, 3750 VAC_RMS for 1 min.
– IEC60747-5-2 (pending approval)
Applications
■ Microprocessor system interface
– SPI, I²C
■ Industrial fieldbus communications
– DeviceNet, CAN, RS485
■ Programmable logic control
■ Isolated data acquisition system
■ Voltage level translator
■ Isolating MOSFET/IGBT gate drivers
Description
The FODM8061 is a 3.3V/5V high-speed logic gate
output (open collector) optocoupler, which supports
isolated communications allowing digital signals to
communicate between systems without conducting
ground loops or hazardous voltages. It utilizes Fairchild’s
patented coplanar packaging technology, Optoplanar^®,
and optimized IC design to achieve high noise immunity,
characterized by high common mode transient immunity
specifications.
This optocoupler consists of an AlGaAS LED at the
input, optically coupled to a high speed integrated photo-
detector logic gate. The output of the detector IC is an
open collector schottky-clamped transistor. The coupled
parameters are guaranteed over the wide temperature
range of -40°C to +110°C. A maximum input signal of
5mA will provide a minimum output sink current of 13mA
(fan out of 8).
Related Resources
■ www.fairchildsemi.com/products/opto/
■ www.fairchildsemi.com/pf/FO/FODM611.html
■ www.fairchildsemi.com/pf/FO/FODM8071.html
Functional Schematic
ANODE 1
6 V_CC
5 V_O
CATHODE 3
4 GND
Truth Table
LED
Off
On
Output
High
Low
©2009 Fairchild Semiconductor Corporation
FODM8061 Rev. 1.0.3
www.fairchildsemi.com