Description
The 6N135M, 6N136M, HCPL4503M, HCPL2530M, and
HCPL2531M optocouplers consist of an AlGaAs LED optically
coupled to a high speed photodetector transistor for each channel.
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 HCPL4503M has no internal connection to the phototransistor
base for improved noise immunity. An internal noise shield provides
superior common mode rejection of up to 50,000 V/s.

Features
• High Speed – 1 MBit/s
• Dual−Channel: HCPL2530M, HCPL2531M
• CTR Guaranteed 0°C to 70°C
• No Base Connection for Improved Noise Immunity (HCPL4503M)
• Superior CMR of 15,000 V/s Minimum (HCPL4503M)
• Safety and Regulatory Approvals
♦ UL1577, 5,000 VACRMS for 1 Minute
♦ DIN EN/IEC60747−5−5
• These are Pb−Free Devices

Applications
• Line Receivers
• Pulse Transformer Replacement
• Output Interface to CMOS−LSTTL−TTL
• Wide−Bandwidth Analog Coupling