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DM7820 Datasheet dual line receiver

Manufacturer: National Semiconductor (now Texas Instruments)

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General Description

The DM7820, specified from ·55°e to 125°e, and the DM8820, specified from oOe to 70oe, are digital line receivers with two completely indepen' dent 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 RTL, DTL or TTL integrated circuits.

Overview

Line 0 rivers/Receivers OM7820/0M8820 dual line receiver general.

Key Features

  • Operation from a single +5V logic supply.
  • Input voltage range of ±15V.
  • Each channel can be strobed independently.
  • High input resistance.
  • Fanout of two with either DTL or TTL integrated circuits The response time can be controlled with an ex.
  • ternal capacitor to eliminate noise spikes, and the output state is determined for open inputs. Ter.
  • mination resistors for the twisted pair line are also included in the circuit. Both.

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