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.