SN65LVDS32D - 400 Mbps Quad LVDS Receiver | Texas Instruments
MPN: SN65LVDS32D ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
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| 500 | $0 | $0.00 |
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SN65LVDS32D Overview
An LVDS receiver is an interface circuit that converts a small differential voltage across a balanced pair into a digital logic signal. It belongs to the receiver and transceiver interface IC category, within broader communication-interface and signal-conditioning electronics. Differential reception rejects common-mode noise and helps maintain signal integrity across longer interconnects or cables than ordinary single-ended logic receivers. The SN65LVDS32D implements the electrical characteristics associated with ANSI TIA/EIA-644, as identified in the manufacturer product data.
Key features include four independent receiver channels, operation from one 3.3 V supply, signaling rates up to 400 Mbps, 100 mV maximum differential input threshold, and open-circuit fail-safe behavior suitable for cold-sparing and redundant systems. The manufacturer product page also identifies pin compatibility with AM26LS32, MC3486, and µA9637. Automotive qualification and ESD protection features make the device relevant to industrial control, communications, test equipment, and vehicle electronics where differential signaling is required.
The electrical performance is centered on low-latency differential reception. A typical 2.1 ns propagation delay is useful when the system must preserve timing relationships across multiple channels. The 60 mW typical power dissipation provides a practical baseline for power budgeting, although actual dissipation depends on supply voltage, input activity, output loading, and operating temperature. The single-supply architecture simplifies system power design while requiring correct input common-mode and termination practices.
Typical applications include industrial automation links, high-speed data acquisition, point-to-point communications, test and measurement equipment, and automotive or other harsh-environment interfaces. In these systems, the receiver is placed after a balanced transmission line and connected to downstream digital logic through its four differential receiver outputs. Designers should verify the complete channel budget, cable or PCB loss, termination, grounding, and input common-mode range in the system-level design.
A key design consideration is preserving the LVDS signal path: use controlled-impedance routing, matched differential pair geometry, appropriate termination, and short return paths to avoid degrading the 400 Mbps target. Do not treat the receiver as a general-purpose comparator or add logic without checking the output timing, supply requirements, and pin-specific electrical limits. This page combines the verified manufacturer and distributor information with practical LVDS design guidance for component selection and implementation.
Drop-in alternatives for SN65LVDS32D — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SN65LVDS32DG4
✅ Drop-In📋 Reference alternative (not in catalog)
SN65LVDS32DRG4
✅ Drop-In📋 Reference alternative (not in catalog)
AM26LS32
✅ Drop-In📋 Reference alternative (not in catalog)
MC3486
✅ Drop-In📋 Reference alternative (not in catalog)
µA9637
✅ Drop-In📋 Reference alternative (not in catalog)
SN65LVDS32D Specifications
| Device Type | Quad high-speed differential LVDS receiver |
| Number of Receiver Channels | 4 |
| Signaling Rate | 400 Mbps |
| Supply Voltage | 3.3 V |
| Differential Input Threshold | 100 mV maximum |
| Typical Propagation Delay | 2.1 ns |
| Typical Power Dissipation | 60 mW |
| Operating Temperature Range | -40 °C to +85 °C |
| Package Type | SOIC (D) |
| Package Pin Count | 16 pins |
| Mounting Type | Surface mount |
| Input Technology | LVDS differential signaling |
| Standard Compatibility | ANSI TIA/EIA-644 |
| Automotive Qualification | Qualified for automotive applications |
| ESD Protection | Exceeds 2000 V per MIL-STD-883, Method 3015 |
| Machine Model ESD | Exceeds 200 V |
| Input Pin Compatibility | Compatible with AM26LS32, MC3486, and µA9637 |
SN65LVDS32D 16 pins Pin Configuration Guide
Pin configuration for SN65LVDS32D (16 pins package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for SN65LVDS32D.
Refer to the datasheet for full pin configuration.
Typical Applications
SN65LVDS32D is suitable for 6 applications: Industrial LVDS Communication Links, High-Speed Data Acquisition, Test and Measurement Equipment, Automotive and Vehicle Electronics, Redundant and Fail-Safe Data Paths, Parallel Data Backplanes.
Industrial LVDS Communication Links
The SN65LVDS32D fits industrial communication interfaces that receive four differential channels at rates up to 400 Mbps. Its 3.3 V supply, 100 mV maximum differential threshold, and 2.1 ns typical propagation delay help preserve signal timing across balanced interconnects. Use the four receiver channels for a multi-bit parallel link or four separate point-to-point links, while preserving controlled-impedance routing and proper termination. The -40 °C to +85 °C operating range covers many industrial environments, but enclosure temperature and system EMC requirements still need verification.
Recommended
High-Speed Data Acquisition
Use the SN65LVDS32D when a data-acquisition system must recover four low-amplitude differential signals from a remote or noisy circuit. The receiver's 400 Mbps signaling capability and 100 mV maximum differential threshold are appropriate for a low-voltage differential front end, while the typical 2.1 ns propagation delay helps limit channel-to-channel timing displacement. The application still depends on transmitter drive strength, cable or PCB loss, connector performance, termination, and the acquisition device's input timing budget.
Recommended
Test and Measurement Equipment
The SN65LVDS32D is suitable for test and measurement front ends that need several low-voltage differential inputs received close to the instrument electronics. Its four-channel architecture reduces the number of receiver packages required for a compact parallel interface, and its 2.1 ns typical delay provides a useful starting point for timing analysis. Use short, impedance-controlled paths and account for instrument loading, cable loss, and any required fail-safe behavior during system calibration.
Recommended
Automotive and Vehicle Electronics
The SN65LVDS32D is identified as qualified for automotive applications and can be considered for vehicle electronics interfaces requiring differential reception over a multi-conductor harness. The 3.3 V supply and 400 Mbps signaling target suit compact digital links, while the -40 °C to +85 °C range covers the stated operating limits. Validation must still confirm the exact automotive grade, transient immunity, ESD requirements, harness impedance, grounding, and all environmental qualification requirements for the finished vehicle platform.
Recommended
Redundant and Fail-Safe Data Paths
The SN65LVDS32D's open-circuit fail-safe characteristics and cold-sparing suitability make it relevant to redundant links where a receiver must remain interpretable during a fault condition. In a dual-channel or backup communication arrangement, the four receivers can monitor or receive redundant data while the system compares channels for validity. The exact fail-safe thresholds, input state, and bus topology must be verified in the manufacturer datasheet, and external termination and power-state behavior must be included in fault testing.
Recommended
Parallel Data Backplanes
A compact backplane can use the SN65LVDS32D as a four-lane receiver for a high-speed parallel data path. The 400 Mbps signaling rate and 2.1 ns typical propagation delay provide a basis for evaluating lane timing, while differential reception helps reduce sensitivity to common-mode noise. The board must maintain a continuous reference plane and consistent pair geometry across connectors and layer transitions. Validate skew, insertion loss, crosstalk, termination, and downstream input thresholds across temperature and manufacturing tolerances.
Recommended
Recommended Products Summary
Engineering reference data for SN65LVDS32D — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN65LVDS32DG4 | SN65LVDS32DRG4 | AM26LS32 | MC3486 | µA9637 |
|---|---|---|---|---|---|---|
| Package | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Key Differentiators
- 400 Mbps signaling target in a 16-pin SOIC quad receiver (vs AM26LS32)
- 2.1 ns typical propagation delay (vs MC3486)
- Explicit manufacturer-identified automotive qualification (vs AM26LS32)
- Four channels integrated in one receiver package (vs MC3486)
- 3.3 V single-supply operation (vs µA9637)
Design Notes
For the 400 Mbps interface, route each LVDS pair as a controlled-impedance differential pair with tightly matched geometry and a continuous ground reference. Keep the receiver and termination close to the device, minimize stubs and layer transitions, and verify insertion loss, crosstalk, skew, and return-path discontinuities across temperature. The 100 mV maximum differential input threshold does not remove the need for a properly terminated and controlled channel.
Place power and ground connections directly to the SOIC pins and keep the differential inputs away from noisy return paths and switching nodes. Check the manufacturer's recommended decoupling and pin configuration before finalizing the PCB. If the cable or board interface includes connectors, preserve pair order and ground adjacency through the connector so common-mode noise is not converted into differential error.
Do not assume that a family member or pin-compatible receiver is automatically a drop-in replacement. Compare the exact pinout, supply range, input threshold, output levels, fail-safe state, propagation delay, maximum data rate, ESD behavior, and package dimensions. The supplied data supports AM26LS32, MC3486, and µA9637 as compatibility candidates but does not quantify every difference, so bench validation is required.
Use the 60 mW typical power dissipation as an initial estimate for the receiver only, not as a complete board power budget. Actual consumption depends on 3.3 V supply current, input activity, output loading, temperature, and adjacent circuitry. Estimate worst-case dissipation from the actual operating current and supply voltage, then confirm the PCB temperature rise in the assembled design.
Compliance Information
The supplied data states that the SN65LVDS32D is qualified for automotive applications and identifies ESD protection exceeding 2000 V per MIL-STD-883, Method 3015, and exceeding 200 V using the machine model. Specific RoHS, REACH, AEC-Q100 grade, lead-free, halogen-free, and conflict-minerals status are not present in the verified data.
