Texas Instruments SN65LVDS1DBVT

Overview

SN65LVDS1DBVT from Texas Instruments is a single-channel LVDS line driver IC that converts LVTTL input signals into ANSI TIA/EIA-644-compliant differential outputs. It operates from 2.4 V to 3.6 V, delivers 350 mV typical differential output into 100 Ω, achieves ≤3.1 ns propagation delay, and supports up to 630 Mbps signaling - used in high-speed backplane and PCB trace interconnects for wireless infrastructure baseband units.

For engineers reviewing the SN65LVDS1DBVT datasheet, SN65LVDS1DBVT pinout, SN65LVDS1DBVT application, or SN65LVDS1DBVT equivalent, key selection criteria include its 5-V-tolerant LVTTL input, bus-terminal ESD rating of ±9 kV, fail-safe receiver compatibility (when paired), low-power operation at 200 MHz (25 mW typical), and SOT-23-5 package suitability for space-constrained routing.

Technical Context

The SN65LVDS1DBVT implements a constant-current differential output stage with closed-loop common-mode voltage regulation (1.2 V ±75 mV) across its full 2.4–3.6 V supply range. Its input stage includes internal pulldown and 7-V Zener ESD protection, enabling robust 5-V-tolerant LVTTL interfacing without external level shifters.

Propagation delay skew between Y and Z outputs is limited to ≤0.3 ns, and output rise/fall times are ≤1 ns under 10 pF load. The device enters high-impedance state when VCC drops below 1.5 V, supporting hot-swap and power sequencing in multi-rail systems.

Key Specifications

Pinout & Package

SOT-23-5 package (2.90 mm × 1.60 mm), surface-mount, lead-free, RoHS-compliant. Thermal resistance R_θJA = 322.6 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVDS driver applications.

Compared with SN65LVDS1D and MAX3041ESA+, the SN65LVDS1DBVT uniquely balances ultra-compact SOT-23-5 packaging, 630 Mbps performance, 5-V-tolerant input, and ±9 kV ESD - making it optimal for space-constrained, high-speed, mixed-voltage embedded systems where layout density and interface flexibility are critical.

Availability

SN65LVDS1DBVT is available at Aetrix Electronics and suitable for wireless infrastructure baseband, telecom line card timing, and industrial printer engine control requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for SN65LVDS1DBVT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The SN65LVDS1DBVT belongs to TI's high-speed interface product line, designed specifically for low-power, low-EMI differential signaling in space- and power-constrained applications such as portable test equipment and compact telecom modules.

FAQ

What is the maximum signaling rate supported by the SN65LVDS1DBVT?

The SN65LVDS1DBVT supports signaling rates up to 630 Mbps, as specified in the official Texas Instruments datasheet SLLS373M. This maximum rate is validated under recommended operating conditions (2.4 V to 3.6 V supply, 100 Ω load, 25°C ambient). At higher temperatures or marginal loads, derating may apply - always verify eye diagram integrity using IBIS models for your specific layout when targeting >500 Mbps in production designs with SN65LVDS1DBVT.

Does the SN65LVDS1DBVT require external termination resistors?

No, the SN65LVDS1DBVT does not include internal termination; it is a driver-only device and requires a 100 Ω differential termination resistor at the receiver end of the transmission line. The SN65LVDS1DBVT itself presents a high-impedance output and relies on proper PCB trace impedance control (100 Ω differential) and remote termination to maintain signal integrity. Always place the 100 Ω resistor as close as possible to the receiver input pins - not near the SN65LVDS1DBVT output - to avoid reflections.

Is the SN65LVDS1DBVT pin-compatible with other devices in the SN65LVDSx family?

No, the SN65LVDS1DBVT is not pin-compatible with SN65LVDS2DBV or SN65LVDT2DBV. While all three share the SOT-23-5 package, their pin functions differ: SN65LVDS1DBVT uses pins 3 (Z) and 4 (Y) as LVDS outputs and pin 5 (D) as LVTTL input; SN65LVDS2DBV uses pins 3 (A) and 4 (B) as LVDS inputs and pin 5 (R) as LVTTL output. Swapping them without redesign will cause functional failure. Always consult Table 5-1 (Pin Functions: SN65LVDS1) in the datasheet before layout.

What is the purpose of the NC pins on the SN65LVDS1DBVT?

The SN65LVDS1DBVT has no NC (no-connect) pins in the SOT-23-5 package - all five pins (VCC, GND, Z, Y, D) are electrically assigned and functional. This differs from the SOIC-8 variant (SN65LVDS1D), which includes three NC pins. Do not assume unused pads or vias on the SOT-23-5 footprint correspond to NC functions; grounding or leaving floating any pin beyond the defined five violates the device's thermal and ESD design intent. Refer to Figure 5-1 (DBV Package Top View) in SLLS373M for confirmation.

Can the SN65LVDS1DBVT operate with a 2.5 V supply voltage?

Yes, the SN65LVDS1DBVT is fully specified to operate from 2.4 V to 3.6 V, including 2.5 V. At 2.5 V, differential output voltage remains ≥200 mV (min) into 100 Ω, propagation delay increases slightly (typical tPLH/tPHL ~2.0–3.3 ns), and power dissipation decreases proportionally. All AC and DC specifications remain valid per Section 6.3 (Recommended Operating Conditions) of the datasheet - no derating or qualification testing is required for 2.5 V use in SN65LVDS1DBVT-based designs.