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Part: SN75182DR
Category:
Interface and Interconnect
-> Line Drivers/Interfaces
-> Non-Standard Line Circuits
Description: ti SN75182, Dual Differential Line Receiver
Company: Texas Instruments, Inc.
Datasheet: Download SN75182DR datasheet File size : 255 kB
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Datasheet text preview:
SN55182, SN75182 DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D OCTOBER 1972 REVISED APRIL 1998
D D D D D D D D D D D
Single 5-V Supply Differential Line Operation Dual Channels TTL Compatibility ±15-V Common-Mode Input Voltage Range ±15-V Differential Input Voltage Range Individual Channel Strobes Built-In Optional Line-Termination Resistor Individual Frequency Response Controls Designed for Use With Dual Differential Drivers SN55183 and SN75183 Designed to Be Interchangeable With National Semiconductor DS7820A and DS8820A
SN55182 . . . J OR W PACKAGE SN75182 . . . N PACKAGE (TOP VIEW)
1IN 1RT 1IN+ 1STRB 1RTC 1OUT GND
1 2 3 4 5 6 7
14 13 12 11 10 9 8
VC C 2IN 2RT 2IN+ 2STRB 2RTC 2OUT
SN55182 . . . FK PACKAGE (TOP VIEW)
1RT
description
The SN55182 and SN75182 dual differential line receivers are designed to sense small differential signals in the presence of large common-mode noise. These devices give TTL-compatible output signals as a function of the polarity of the differential input voltage. The frequency response of each channel can be easily controlled by a single external capacitor to provide immunity to differential noise spikes. The output goes to a high level when the inputs are open circuited. A strobe input (STRB) is provided that, when in the low level, disables the receiver and forces the output to a high level.
1IN+ NC 1STRB NC 1RTC
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
1IN+ NC V CC 2IN 2RT NC 2IN+ NC 2STRB
NC No internal connection
THE SN55182 IS NOT RECOMMENDED FOR NEW DESIGNS
The receiver is of monolithic single-chip construction, and both halves of the dual circuits use common power-supply and ground terminals. The SN55182 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN75182 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE INPUTS STRB L H H VID X H L OUTPUT OUT H H L
H = VI VIH min or VID more positive than VTH max L = VI VIL max or VID more negative than VTL max X = irrelevant 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.
Copyright © 1998, 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1OUT GND NC 2OUT 2RTC
1
SN55182, SN75182 DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D OCTOBER 1972 REVISED APRIL 1998
logic symbol
1IN+ 1IN 1RT 1STRB 1RTC 2IN+ 2IN 2RT 2STRB 2RTC 3 1 2 4 5 11 13 12 10 9 8 2OUT RESP RT 6 1OUT &
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the J, N, and W packages.
logic diagram (positive logic)
1IN+ 1IN 1RT 1RTC 1STRB 2IN+ 2IN 2RT 2RTC 2STRB 3 1 2 5 4 11 13 12 9 10 8 2OUT 6 1OUT
Pin numbers shown are for the J, N, and W packages.
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN55182, SN75182 DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D OCTOBER 1972 REVISED APRIL 1998
schematic (each receiver)
RTC 5, 9 14 VCC 167 5 k 3 k 1.5 k
4.15 k
5 k 320 6, 8 OUT
1.5 k 3, 11
IN+
170 2, 12
5 k
1 k 1 k 167 1 k
750
RT
7
GND
167
ÁÁÁ
IN
1, 13 4, 10 5 k STRB
Resistor values shown are nominal. Pin numbers shown are for the J, N, and W packages.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
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