Driver IC, 8 arrays, SO-16N

QUAD DIFFERENTIAL LINE DRIVER
iC-HD7 is a robust line driver for industrial 5 V and 24 V applications with four complementary output channels. For signal lines with a characteristic impedance of 30 to 140 ? the integrated line adapter, optimized to 75 ?, minimizes ringing effects which arise when there is no line termination. At a supply of 24 V the push-pull driver stages typically provide 200 mA to discharge the line and also have a low saturation voltage (of typically 200 mV with a 40 mA low-side load). The outputs are current limited and short-circuit-proof, shutting down with excessive temperature. For bus applications the driver stages can be switched to high impedance by a high at input NEN. The driver stage inputs have a Schmitt trigger characteristic and are compatible with CMOS and TTL levels. For test purposes the temperature monitor can be deactivated by applying a voltage of greater than 12 V to input NEN. The device contains internal ESD protection circuitry.

Features
- complementary short-circuit-proof push-pull driver stages for RS422 and 24 V applications up to 2 MHz
- pin-compatible to 26LS31, xx7272
- integrated line adaptation for high signal quality at 24 V
- moderate slew rate reduces EMI
- high driving capability of typically 200 mA at 24 V
- output saturation of just 0.3 V at 40 mAdc
- tristate function for bus applications with excessive temperature shutdown
- TTL-/CMOS-compatible Schmitt trigger inputs, voltage-proof to 40 V
- 4.5 to 35 V single supply operation with low static power dissipation
- operating temperature from -25 to 125 ?C (-40 ?C is optional)

Applications
- line drivers for 24 V control engineering
- linear scales and encoders
- sensor systems