1FEATURES

? 400-Mbps Signaling Rate and 200-Mxfr/s Data

Transfer Rate (1)

? Operates With a Single 3.3-V Supply

? –4 V to 5 V Common-Mode Input Voltage

Range

? Differential Input Thresholds < ±50 mV With

50 mV of Hysteresis Over Entire Common-

Mode Input Voltage Range

? Complies With TIA/EIA-644 (LVDS)

? Active Failsafe Assures a High-Level Output

With No Input

? Bus-Pin ESD Protection Exceeds 15-kV HBM

? Input Remains High-Impedance On Power

Down

? TTL Inputs Are 5-V Tolerant

? QML-V Qualified, SMD 5962-07248

? Military Temperature Range (–55°C to 125°C)

(1) The signaling rate of a line is the number of voltage

transitions that are made per second expressed in the units

bps (bits per second).

DESCRIPTION/ORDERING INFORMATION

These LVDS data line receivers offers the widest common-mode input voltage range in the industry. These

receivers provide an input voltage range specification compatible with a 5-V PECL signal as well as an overall

increased ground-noise tolerance. They are in industry standard footprints with integrated termination as an

option.

Precise control of the differential input voltage thresholds allows for inclusion of 50 mV of input voltage hysteresis

to improve noise rejection on slowly changing input signals. The input thresholds are still no more than +50 mV

over the full input common-mode voltage range.

The receivers can withstand ±15-kV Human-Body Model (HBM) and ±600-V Machine Model (MM) electrostatic

discharges to the receiver input pins with respect to ground without damage. This provides reliability in cabled

and other connections where potentially damaging noise is always a threat.

The receivers also include a (patent pending) failsafe circuit that provides a high-level output within 600 ns after

loss of the input signal. The most common causes of signal loss are disconnected cables, shorted lines, or

powered-down transmitters. The failsafe circuit prevents noise from being received as valid data under these

fault conditions. This feature may also be used for wired-OR bus signaling. See The Active Failsafe Feature of

the SN65LVDS32B application note.

The intended application and signaling technique of these devices is point-to-point baseband data transmission

over controlled impedance media of approximately 100 Ω. The transmission media may be printed-circuit board

traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent upon the attenuation

characteristics of the media and the noise coupling to the environment.

The SN55LVDS33 is characterized for operation from –55°C to 125°C.