1 Features

1• Meets or Exceeds the Requirements of ANSI

TIA/EIA-422-B and ITU

• Operates From a Single 5-V Supply

• TTL-Compatible

• Complementary Outputs

• High Output Impedance in Power-Off Conditions

• Complementary Output-Enable Inputs

• Available MIL-PRF-38535-Qualified Options (M):

All Parameters Are Tested Unless Otherwise

Noted. On All Other Products, Production

Processing Does Not Necessarily Include Testing

of All Parameters.

2 Applications

• Motor Encoders

• Field Transmitters: Pressure Sensors and

Temperature Sensors

• Military and Avionics Imaging

• Temperature Sensors or Controllers Using

Modbus

3 Description

The AM26LS31 family of devices is a quadruple

complementary-output line driver designed to meet

the requirements of ANSI TIA/EIA-422-B and ITU

(formerly CCITT) Recommendation V.11. The 3-state

outputs have high-current capability for driving

balanced lines such as twisted-pair or parallel-wire

transmission lines, and they are in the highimpedance

state in the power-off condition. The

enable function is common to all four drivers and

offers the choice of an active-high or active-low

enable (G, G) input. Low-power Schottky circuitry

reduces power consumption without sacrificing

speed.