SN65LVDS32B

ACTIVE

Quad LVDS receiver with -2 to 4.4-V common-mode range

Product details

Function Receiver Protocols LVDS Number of transmitters 0 Number of receivers 4 Supply voltage (V) 3.3 Signaling rate (Mbps) 400 Input signal LVDS Output signal LVTTL Rating Catalog Operating temperature range (°C) -40 to 85
Function Receiver Protocols LVDS Number of transmitters 0 Number of receivers 4 Supply voltage (V) 3.3 Signaling rate (Mbps) 400 Input signal LVDS Output signal LVTTL Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 16 59.4 mm² 9.9 x 6
  • Meets or Exceeds the Requirements of ANSI EIA/TIA-644 Standard for Signaling Rates(1) up to 400 Mbps
  • Operates With a Single 3.3-V Supply
  • -2-V to 4.4-V Common-Mode Input Voltage Range
  • Differential Input Thresholds <50 mV With 50 mV of Hysteresis Over Entire Common-
    Mode Input Voltage Range
  • Integrated 110- Line Termination Resistors Offered With the LVDT Series
  • Propagation Delay Times 4 ns (typ)
  • Active Fail Safe Assures a High-Level Output With No Input
  • Bus-Pin ESD Protection Exceeds 15 kV—HBM
  • Inputs Remain High-Impedance on Power Down
  • Recommended Maximum Parallel Rate of 200 M-Transfer/s
  • Available in Small-Outline Package With 1,27-mm Terminal Pitch
  • Pin-Compatible With the AM26LS32, MC3486, or µA9637

(1) Signaling rate, 1/t, where t is the minimum unit interval and is expressed in the units bit/s (bits per second).

  • Meets or Exceeds the Requirements of ANSI EIA/TIA-644 Standard for Signaling Rates(1) up to 400 Mbps
  • Operates With a Single 3.3-V Supply
  • -2-V to 4.4-V Common-Mode Input Voltage Range
  • Differential Input Thresholds <50 mV With 50 mV of Hysteresis Over Entire Common-
    Mode Input Voltage Range
  • Integrated 110- Line Termination Resistors Offered With the LVDT Series
  • Propagation Delay Times 4 ns (typ)
  • Active Fail Safe Assures a High-Level Output With No Input
  • Bus-Pin ESD Protection Exceeds 15 kV—HBM
  • Inputs Remain High-Impedance on Power Down
  • Recommended Maximum Parallel Rate of 200 M-Transfer/s
  • Available in Small-Outline Package With 1,27-mm Terminal Pitch
  • Pin-Compatible With the AM26LS32, MC3486, or µA9637

(1) Signaling rate, 1/t, where t is the minimum unit interval and is expressed in the units bit/s (bits per second).

This family of differential line receivers offers improved performance and features that implement the electrical characteristics of low-voltage differential signaling (LVDS). LVDS is defined in the TIA/EIA-644 standard. This improved performance represents the second generation of receiver products for this standard, providing a better overall solution for the cabled environment. This generation of products is an extension to TI's overall product portfolio and is not necessarily a replacement for older LVDS receivers.

Improved features include an input common-mode voltage range 2 V wider than the minimum required by the standard. This will allow longer cable lengths by tripling the allowable ground noise tolerance to 3 V between a driver and receiver. TI has additionally introduced an even wider input common-mode voltage range of -4 to 5 V in their SN65LVDS/T33 and SN65LVDS/T34.

Precise control of the differential input voltage thresholds now 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 high-speed switching of LVDS signals almost always necessitates the use of a line impedance matching resistor at the receiving-end of the cable or transmission media. The SN65LVDT series of receivers eliminates this external resistor by integrating it with the receiver. The non-terminated SN65LVDS series is also available for multidrop or other termination circuits.

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) fail-safe circuit that will provide 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. This prevents noise from being received as valid data under these fault conditions. This feature may also be used for wired-OR bus signaling.

The intended application of these devices and signaling technique is for point-to-point baseband data transmission over controlled impedance media of approximately 100 . 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 SN65LVDS32B, SN65LVDT32B, SN65LVDS3486B, SN65LVDT3486B, SN65LVDS9637B, and SN65LVDT9637B are characterized for operation from -40°C to 85°C.

This family of differential line receivers offers improved performance and features that implement the electrical characteristics of low-voltage differential signaling (LVDS). LVDS is defined in the TIA/EIA-644 standard. This improved performance represents the second generation of receiver products for this standard, providing a better overall solution for the cabled environment. This generation of products is an extension to TI's overall product portfolio and is not necessarily a replacement for older LVDS receivers.

Improved features include an input common-mode voltage range 2 V wider than the minimum required by the standard. This will allow longer cable lengths by tripling the allowable ground noise tolerance to 3 V between a driver and receiver. TI has additionally introduced an even wider input common-mode voltage range of -4 to 5 V in their SN65LVDS/T33 and SN65LVDS/T34.

Precise control of the differential input voltage thresholds now 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 high-speed switching of LVDS signals almost always necessitates the use of a line impedance matching resistor at the receiving-end of the cable or transmission media. The SN65LVDT series of receivers eliminates this external resistor by integrating it with the receiver. The non-terminated SN65LVDS series is also available for multidrop or other termination circuits.

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) fail-safe circuit that will provide 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. This prevents noise from being received as valid data under these fault conditions. This feature may also be used for wired-OR bus signaling.

The intended application of these devices and signaling technique is for point-to-point baseband data transmission over controlled impedance media of approximately 100 . 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 SN65LVDS32B, SN65LVDT32B, SN65LVDS3486B, SN65LVDT3486B, SN65LVDS9637B, and SN65LVDT9637B are characterized for operation from -40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet High-Speed Differential Receivers datasheet (Rev. B) 23 Apr 2007
Application brief LVDS to Improve EMC in Motor Drives 27 Sep 2018
Application brief How Far, How Fast Can You Operate LVDS Drivers and Receivers? 03 Aug 2018
Application brief How to Terminate LVDS Connections with DC and AC Coupling 16 May 2018
Application note Active Fail-Safe in TI's LVDS Receivers (Rev. B) 31 Oct 2001
Application note An Overview of LVDS Technology 05 Oct 1998

Design & development

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Evaluation board

SN65LVDS31-32BEVM — SN65LVDS31-32B a low voltage differential signaling evaluation module for LVDS31 and LVDS32B

TI offers a series of low-voltage differential signaling (LVDS) evaluation modules (EVMs) designed for analysis of the electrical characteristics of LVDS drivers and receivers. Four unique EVMs are available to evaluate the different classes of LVDS devices offered by TI.

Combination Table

As seen (...)

User guide: PDF
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Simulation model

SN65LVDS32B IBIS Model

SLLC034.ZIP (4 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
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