DS7820

DS7820 DS8820 Dual Line Receiver February 1996 DS7820 DS8820 Dual Line Receiver General Description The DS7820 specified from b55 C to a 125 C and the DS8820 specified from 0 C to a 70 C are digital line receivers with two completely independent units fabricated on a single silicon chip Intended for use with digital systems connected by twisted pair lines they have a differential input designed to reject large common mode signals while responding to small differential signals The output is directly compatible with TTL or LS integrated circuits The response time can be controlled with an external capacitor to eliminate noise spikes and the output state is determined for open inputs Termination resistors for the twisted pair line are also included in the circuit Both the DS7820 and the DS8820 are specified worst case over their full operating temperature range for g 10-percent supply voltage variations and over the entire input voltage range Features Y Y Y Y Y Y Operation from a single a 5V logic supply Input voltage range of g 15V Each channel can be strobed independently High input resistance Fan out of two with TTL integrated circuits Strobe low forces output to ‘‘1’’ state Connection Diagram Dual-In-Line Package TL F 5796 – 2 Top View Order Number DS7820J or DS8820N See NS Package Number J14A or N14A For Complete Military 883 Specifications See RETS Data Sheet Order Number DS7820J 883 or DS7820W 883 See NS Package Number J14A or W14B C1996 National Semiconductor Cor...