DS26F31MQuad High Speed Differential Line Drivers
May 1999
DS26F31M
Quad High Speed Differential Line Drivers
General Description
The DS26F31 is a quad differential line driver designed for
digital data transmission over balanced lines. The DS26F31
meets all the requirements of EIA Standard RS-422 and
Federal Standard 1020. It is designed to provide unipolar dif-
ferential drive to twisted-pair or parallel-wire transmission
lines.
The DS26F31 offers improved performance due to the use
of state-of-the-art L-FAST bipolar technology. The L-FAST
technology allows for higher speeds and lower currents by
utilizing extremely short gate delay times. Thus, the
DS26F31 features lower power, extended temperature
range, and improved specifications.
The circuit provides an enable and disable function common
to all four drivers. The DS26F31M features TRI-STATE
廬
out-
puts and logical OR-ed complementary enable inputs. The
inputs are all LS compatible and are all one unit load.
The DS26F31M offers optimum performance when used
with the DS26F32 Quad Differential Line Receiver.
Features
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Military temperature range
Output skew 鈥?2.0 ns typical
Input to output delay 鈥?10 ns
Operation from single +5.0V supply
16-lead ceramic DIP Package
Outputs won鈥檛 load line when V
CC
= 0V
Output short circuit protection
Meets the requirements of EIA standard RS-422
High output drive capability for 100鈩?terminated
transmission lines
Connection and Logic Diagrams
16-Lead Dual-In-Line Package
DS009614-2
FIGURE 1. Logic Symbol
20-Lead Ceramic Leadless Chip Carrier (E)
DS009614-1
Top View
For Complete Military Product Specifications,
refer to the appropriate SMD or MDS.
Order Number DS26F31ME/883, DS26F31MJ/883, or
DS26F31MW/883
See NS Package Numbers E20A, J16A, or W16A
DS009614-7
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS009614
www.national.com
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