HCPL-2231 Low Input Current Logic Gate Optocouplers holt integrated circuits

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HCPL-2231

Low Input Current Logic Gate Optocouplers holt integrated circuits

Features

• 2.5 kV/µs Minimum Common Mode Rejection (CMR) at VCM = 400 V (HCPL-2219)

• Compatible with LSTTL, TTL, and CMOS Logic

• Wide VCC Range (4.5 to 20 V)

• 2.5 Mbd Guaranteed over Temperature

• Low Input Current (1.6 mA)

• Three State Output (No Pullup Resistor Required)

• Guaranteed Performance from 0°C to 85°C

• Hysteresis

• Safety Approval

Description

The HCPL-2200/2219 are optically coupled logic gates that combine a GaAsP LED and an integrated high gain photo detector. The detector has a three state output stage and has a detector threshold with hysteresis. The three state output eliminates the need for a pullup resistor and allows for direct drive of data busses. The hysteresis provides differential mode noise immunity and eliminates the potential for output signal chatter.

A superior internal shield on the HCPL-2219 guarantees common mode transient immunity of 2.5 kV/µs at a common mode voltage of 400 volts.