uA9638C

DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER

SLLS112C – OCTOBER 1980 – REVISED APRIL 1994

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POST OFFICE BOX 655303

EIA / TIA-422-B

to 15 Mbps

Semiconductor

™ DS9638

description

The uA9638C is a dual high-speed differential line driver designed to meet ANSI Standard EIA / TIA-422-B. The

inputs are TTL and CMOS compatible and have input clamp diodes. Schottky-diode-clamped transistors are

used to minimize propagation delay time. This device operates from a single 5-V power supply and is supplied

in an 8-pin package.

The uA9638 provides the current needed to drive low-impedance loads at high speeds. Typically used with

twisted-pair cabling and differential receiver(s), base-band data transmission can be accomplished up to and

exceeding 15 Mbps in properly designed systems. The uA9637A dual line receiver is commonly used as the

receiver. For even faster switching speeds in the same pin configuration, see the SN75ALS191.

The uA9638C is characterized for operation from 0

°C to 70°C.

† This symbol is in accordance with ANSI/IEEE Std 91-1984 and

IEC Publication 617-12.

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logic diagram

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Copyright

© 1994, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

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.

National Semiconductor is a trademark of National Semiconductor Corporation.

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