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AM26LS31, AM26LS31C, AM26LS31I, AM26LS31M
SLLS114L – JANUARY 1979 – REVISED OCTOBER 2018
AM26LS31x Quadruple Differential Line Driver
1 Features
•1 Meets or Exceeds the Requirements of ANSI TIA/EIA-422-B and ITU
• Operates From a Single 5-V Supply • TTL-Compatible • Complementary Outputs • High Output Impedance in Power-Off Conditions • Complementary Output-Enable Inputs • Available MIL-PRF-38535-Qualified Options (M):
All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.
2 Applications
• Motor Encoders • Field Transmitters: Pressure Sensors and
Temperature Sensors • Military and Avionics Imaging • Temperature Sensors or Controllers Using
Modbus
3 Description
The AM26LS31 family of devices is a quadruple complementary-output line driver designed to meet the requirements of ANSI TIA/EIA-422-B and ITU (formerly CCITT) Recommendation V.11. The 3-state outputs have high-current capability for driving balanced lines such as twisted-pair or parallel-wire transmission lines, and they are in the highimpedance state in the power-off condition. The enable function is common to all four drivers and offers the choice of an active-high or active-low enable (G, G) input. Low-power Schottky circuitry reduces power consumption without sacrificing speed.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
AM26LS31MFK LCCC (20)
8.89 mm × 8.89 mm
AM26LS31MJ
CDIP (16)
19.60 mm × 6.92 mm
AM26LS31MW CFP (16)
10.30 mm × 6.73 mm
AM26LS31CD
SOIC (16)
9.90 mm × 3.91 mm
AM26LS31CDB SSOP (16)
6.20 mm × 5.30 mm
AM26LS31CN
PDIP (16)
19.30 mm × 6.35 mm
AM26LS31xNS SO (16)
10.30 mm × 5.30 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Schematic (Each Driver)
Input A
V 22 kΩ
9Ω Output Y
9Ω Output Z
Common to All Four Drivers VCC V 22 kΩ 22 kΩ
Enable G
Enable G
GND
All resistor values are nominal.
1
To Three Other Drivers Copyright © 2016, Texas Instruments Incorporated
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
AM26LS31, AM26LS31C, AM26LS31I, AM26LS31M
SLLS114L – JANUARY 1979 – REVISED OCTOBER 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 3 6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4 6.2 ESD Ratings.............................................................. 4 6.3 Recommended Operating Conditions....................... 4 6.4 Thermal Information .................................................. 4 6.5 Electrical Characteristics .......................................... 5 6.6 Switching Characteristics – AM26LS31 .................... 5 6.7 Switching Characteristics – AM26LS31M ................. 5 6.8 Typical Characteristics .............................................. 6 7 Parameter Measurement Information .................. 8 8 Detailed Description .............................................. 9 8.1 Overview ................................................................... 9 8.2 Functional Block Diagram ......................................... 9
8.3 Feature Description................................................... 9 8.4 Device Functional Modes........................................ 10 9 Application and Implementation ........................ 11 9.1 Application Information............................................ 11 9.2 Typical Application ................................................. 11 10 Power Supply Recommendations ..................... 13 11 Layout................................................................... 13 11.1 Layout Guidelines ................................................. 13 11.2 Layout Example .................................................... 13 12 Device and Documentation Support ................. 14 12.1 Documentation Support ........................................ 14 12.2 Related Links ........................................................ 14 12.3 Receiving Notification of Documentation Updates 14 12.4 Community Resources.......................................... 14 12.5 Trademarks ........................................................... 14 12.6 Electrostatic Discharge Caution ............................ 14 12.7 Glossary ..........................................