HCPL4503M High Speed Transistor Optocouplers

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HCPL4503M High Speed Transistor Optocouplers

October 2006

HCPL4503M High Speed Transistor Optocouplers
Features
VISO 5kV RMS is standard for all devices High speed 1MBit/s Superior CMR, CMH 50kV/ms (typical);

Description
The HCPL4503M optocoupler consists of an AlGaAs LED optically coupled to a high speed photodetector transistor. A separate connection for the bias of the photodiode improves the speed by several orders of magnitude over conventional phototransistor optocouplers by reducing the base-collector capacitance of the input transistor. The base of the phototransistor is not bonded out to a pin for improved noise immunity. An internal noise shield provides superior common mode rejection of 15kV/ s minimum.

CML 30kV/ms (typical) No base connection for improved noise immunity CTR guaranteed 0-70 C U.L. recognized (File E90700, Vol 2) VDE approval pending

Applications
Line receivers Pulse transformer replacement Output interface to CMOS-LSTTL-TTL Wide bandwidth analog coupling

Package

Schematic

8 1

N/C 1

8 VCC

2 V
F

7 N/C

3

6 VO

8 1

8 1

N/C 4

5 GND

2005 Fairchild Semiconductor Corporation

1

www.fairchildsemi.com

HCPL4503M Rev. 1.0.2

HCPL4503M Datasheet Fairchild Download PDF

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HCPL4503M DATASHEET