Datasheet

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DS9637A

www.ti.com

SNLS388D –MAY 1998–REVISED APRIL 2013

DS9637A Dual Differential Line Receiver

Check for Samples: DS9637A

FEATURES

DESCRIPTION

The DS9637A is a Schottky dual differential line

• Dual Channel

receiver which has been specifically designed to

• Single 5V Supply

satisfy the requirements of EIA Standards RS-422

• Satisfies EIA Standards RS-422 and RS423

and RS-423. In addition, the DS9637A satisfies the

requirements of MIL-STD 188-114 and is compatible

• Built-in ±35 mV Hysteresis

with the International Standard CCITT

• High Input Common Mode Voltage Range

recommendations. The DS9637A is suitable for use

• High Input impedance

as a line receiver in digital data systems, using either

single ended or differential, unipolar or bipolar

• TTL Compatible Outputs

transmission. It requires a single 5V power supply

• Schottky Technology

and has Schottky TTL compatible outputs. The

• Extended Temperature Range

DS9637A has an operational input common mode

range of ±7V either differentially or to ground.

Connection Diagram

Top View

Figure 1. 8-Lead SOIC (D Package)

8-Lead PDIP (P Package)

For Complete Military Product Specifications,

refer to the appropriate SMD or MDS.

8-Lead CDIP (NAB Package)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (7 pages)

PAGE 1
DS9637A www.ti.com SNLS388D – MAY 1998 – REVISED APRIL 2013 DS9637A Dual Differential Line Receiver Check for Samples: DS9637A FEATURES DESCRIPTION • • • • • • • • • The DS9637A is a Schottky dual differential line receiver which has been specifically designed to satisfy the requirements of EIA Standards RS-422 and RS-423. In addition, the DS9637A satisfies the requirements of MIL-STD 188-114 and is compatible with the International Standard CCITT recommendations.
PAGE 2
DS9637A SNLS388D – MAY 1998 – REVISED APRIL 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
PAGE 3
DS9637A www.ti.com SNLS388D – MAY 1998 – REVISED APRIL 2013 Electrical Characteristics (1) (2) Over recommended operating temperature and supply voltage ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units VTH Differential Input Threshold Voltage (3) −7.0V ≤ VCM ≤ +7.0V −0.2 +0.2 V VTH(R) Differential Input Threshold Voltage (4) −7.0V ≤ VCM ≤ +7.0V −0.4 +0.4 V II Input Current (5) VI = 10V, 0V ≤ VCC ≤ +5.5V 1.1 3.25 mA VI = −10V, 0V ≤ VCC ≤ +5.5V −1.
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DS9637A SNLS388D – MAY 1998 – REVISED APRIL 2013 www.ti.com Equivalent Circuit Figure 2. Equivalent Circuit Typical Input/Output Transfer Characteristics Figure 3. 4 Figure 4.
PAGE 5
DS9637A www.ti.com SNLS388D – MAY 1998 – REVISED APRIL 2013 AC TEST CIRCUIT AND WAVEFORMS Notes: CL includes jig and probe capacitance. All diodes are FD700 or equivalent. Figure 5. AC Test Circuit and Waveforms VI Amplitude: 1.0V Offset: 0.5V Pulse Width: 100 ns PRR: 5.0 MHz tr = tf ≤ 5.0 ns Figure 6. Typical Applications Notes: RT ≥ 50Ω for RS-422 operation. RT combined with input impedance of receivers must be greater than 90Ω. Figure 7.
PAGE 6
DS9637A SNLS388D – MAY 1998 – REVISED APRIL 2013 www.ti.com REVISION HISTORY Changes from Revision C (April 2013) to Revision D • 6 Page Changed layout of National Data Sheet to TI format ............................................................................................................
PAGE 7
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.