1 Features

• Meets or exceeds the EIA standards RS-422-A,

RS-423-A, RS-485, and CCITT recommendation

V.11

• Designed to operate with pulse durations as short

as 20 ns

• Designed for multipoint transmission on long bus

lines in noisy environments

• Input sensitivity: ±200 mV

• Low-power consumption: 20 mA maximum

• Open-circuit fail-safe design

• Common-mode input voltage range of −7 V to 12 V

• Pin compatible with SN75175 and LTC489

2 Applications

• Factory automation

• ATM and cash counters

• Smart grid

• AC and servo motor drives

3 Description

The SN65LBC175 and SN75LBC175 are monolithic,

quadruple, differential line receivers with 3-state

outputs designed to meet the requirements of the EIA

standards RS-422-A, RS-423-A, RS-485, and CCITT

Recommendation V.11. The devices are optimized for

balanced multipoint bus transmission at data rates

up to and exceeding 10 million bits per second. The

receivers are enabled in pairs, with an active-high

enable input. Each differential receiver input features

high impedance, hysteresis for increased noise

immunity, and sensitivity of ±200 mV over a commonmode

input voltage range of 12 V to −7 V. The failsafe

design ensures that when the inputs are opencircuited,

the outputs are always high. Both devices

are designed using the TI proprietary LinBiCMOS™

technology allowing low power consumption, high

switching speeds, and robustness.

These devices offer optimum performance when used

with the SN75LBC172 or SN75LBC174 quadruple

line drivers. The SN65LBC175 is available in the

16-pin DIP (N), small-outline package (D), and the

wide small-outline package (DW). The SN75LBC175

is available in the 16-pin DIP (N) and the small-outline

package (D).

The SN65LBC175 is characterized over the

industrial temperature range of −40°C to 85°C. The

SN75LBC175 is characterized for operation over the

commercial temperature range of 0°C to 70°C.