Texas Instruments TLV3802QDSSRQ1

Overview

TLV3802QDSSRQ1 from Texas Instruments is a dual-channel, automotive-grade high-speed comparator with LVDS outputs, 225-ps propagation delay, ±0.5-mV input offset voltage, and 240-ps minimum detectable pulse width. It operates from 2.7 V to 5.25 V single or split supply and is designed for time-critical signal conditioning in LIDAR front-ends and ToF sensor interfaces.

For engineers reviewing the TLV3802QDSSRQ1 datasheet, TLV3802QDSSRQ1 pinout, TLV3802QDSSRQ1 application, or TLV3802QDSSRQ1 equivalent, key selection considerations include channel-to-channel skew (≤6 ps), LVDS output compliance (±350 mV swing, 1.25-V common-mode), internal 2-mV hysteresis, and AEC-Q100 Grade 1 qualification (–40°C to +125°C).

Technical Context

The TLV3802QDSSRQ1 integrates two independent high-speed comparators sharing a common VCC rail but with separate IN+/IN− pairs and fully differential LVDS outputs (OUT1+/−, OUT2+/−). Its input stage supports split-supply operation (VEE < GND) enabling bipolar input signal handling up to ±1.5 V differential, while the LVDS output stage references GND and drives standard 100-Ω terminations directly.

Propagation delay variation is tightly controlled: overdrive dispersion is 5 ps (20–100 mV), temperature coefficient is ±0.2 ps/°C, and channel-to-channel skew is ≤6 ps - critical for synchronized dual-edge timing in distance measurement systems where deterministic latency is mandatory.

Key Specifications

Pinout & Package

TLV3802QDSSRQ1 uses a 12-pin WSON package (3.00 mm × 2.00 mm, wettable flanks) optimized for automated optical inspection and high-reliability automotive PCB assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed comparator applications.

Compared with TLV3802QDSSRQ1, TLV3801QDSGRQ1 saves PCB area but lacks dual-channel timing correlation, while LMH7322MA/NOPB offers higher bandwidth tolerance but introduces interface complexity and power overhead due to non-LVDS outputs.

Availability

TLV3802QDSSRQ1 is available at Aetrix Electronics and suitable for LIDAR subsystems, automotive ToF sensors, high-speed oscilloscope trigger circuits, and LVDS line receiver designs requiring stable component supply across extended temperature ranges.

Supply support for TLV3802QDSSRQ1 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 leader specializing in analog, embedded processing, and automotive electronics with over 90 years of innovation in precision signal chain solutions.

The TLV380x-Q1 product line delivers ultra-low-latency, AEC-Q100-qualified comparators for automotive ADAS, LIDAR, and industrial time-of-flight sensing where deterministic timing and noise immunity are critical.

FAQ

What is the maximum operating temperature range for TLV3802QDSSRQ1?

TLV3802QDSSRQ1 is qualified per AEC-Q100 Grade 1 and operates reliably from –40°C to +125°C ambient temperature. This rating covers junction temperatures up to 150°C under recommended operating conditions, making it suitable for under-hood automotive applications and industrial environments with high thermal stress.

Does TLV3802QDSSRQ1 require external hysteresis for stable operation?

TLV3802QDSSRQ1 includes 2 mV of internal hysteresis, which prevents output chatter on slow-rising or noisy inputs. External hysteresis is optional and only needed when input signal slew rates are extremely low (<1 V/ns) or noise exceeds the internal hysteresis margin - most LIDAR and ToF applications operate stably with the internal hysteresis alone.

Can TLV3802QDSSRQ1 drive standard FPGA LVDS inputs directly?

Yes. TLV3802QDSSRQ1's LVDS outputs meet ANSI/TIA/EIA-644-A specifications: 250–450 mV differential swing into 100 Ω, 1.25-V common-mode voltage, and <30-mV common-mode mismatch. It interfaces directly with Xilinx, Intel, and Microchip FPGA LVDS I/O banks without level shifters or termination resistors on the driver side.

What is the purpose of the dual VCC pins (Pins 7 and 10) on TLV3802QDSSRQ1?

Pins 7 and 10 are redundant VCC connections to improve power delivery integrity in high-frequency operation. Both must be connected to the same 2.7–5.25 V supply net and decoupled locally with 100-nF ceramic capacitors. This dual-pad layout reduces impedance and enhances PSRR for the LVDS output stage under fast switching loads.

How does TLV3802QDSSRQ1 handle split-supply operation with VEE < GND?

TLV3802QDSSRQ1 supports true split-supply operation: VEE can be set below GND (e.g., –2.5 V) while VCC remains positive (e.g., +2.5 V), enabling bipolar input signal ranges (±1.5 V differential). The LVDS output stage remains referenced to GND, preserving compatibility with standard LVDS receivers even when inputs are bipolar.