The DS78LS120 and DS88LS120 are high-performance, dual differential, TTL-compatible line receivers for both balanced and unbalanced digital data transmission. The inputs are compatible with EIA, Federal, and MIL standards. The line receiver will discriminate a +/-200 mV input signal over a common-mode range of +/-10V and a +/-300 mV signal over a range of +/-15V. Circuit features include hysteresis and response control for applications where controlled rise and fall times and/or high-frequency noise rejection are desirable. Threshold offset control is provided for fail-safe detection, should the input be open or short. Each receiver includes an optional 180 Ohms terminating resistor and the output gate contains a logic strobe for time discrimination. The DS78LS120 is specified over a -55°C to +125°C temperature range and the DS88LS120 from 0°C to +70°C. Input specifications meet or exceed those of the popular DS7820/DS8820 line receive.
