Texas Instruments TLV3604DCKR

Overview

TLV3604DCKR from Texas Instruments is a single-channel, 800ps propagation delay, rail-to-rail input comparator with LVDS differential outputs, operating from 2.4V to 5.5V supply and consuming 12.1mA quiescent current. It detects pulses as narrow as 600ps with ±5mV input offset voltage and 350ps overdrive dispersion, enabling high-precision time-of-flight measurement in optical sensing systems.

For engineers reviewing the TLV3604DCKR datasheet, TLV3604DCKR pinout, TLV3604DCKR application, or TLV3604DCKR equivalent, this device serves as a critical high-speed threshold detector in LIDAR front-ends, oscilloscope trigger paths, and optical receiver signal conditioning where sub-nanosecond timing fidelity and LVDS-compatible output drive are required.

Technical Context

The TLV3604DCKR implements a fully differential, rail-to-rail input stage capable of accepting common-mode voltages 200mV beyond both VEE and VCCI rails, paired with an LVDS output driver delivering ±350mV swing into 100Ω loads. Its architecture minimizes propagation delay variation across input overdrive (350ps max) and supports 3.0Gbps toggle rate under 200mV_PP sine input.

Unlike the TLV3605/TLV3607 variants, the TLV3604DCKR lacks shutdown, latch, or adjustable hysteresis pins - it operates in a single functional mode with fixed internal hysteresis near 0mV, requiring external feedback for noise immunity. Its SC-70 package enables compact placement adjacent to photodiode transimpedance amplifiers in space-constrained sensor modules.

Key Specifications

Pinout & Package

TLV3604DCKR is housed in a 6-pin SC-70 (DCK) package measuring 1.25mm × 2.00mm, optimized for optical sensor module integration. The package features gull-wing leads and a thermally efficient die pad structure.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3605RVKR, TLV3604DCKR offers smaller footprint and simpler biasing but no hysteresis or shutdown control; compared with LMH7322MA/NOPB, it delivers 3.5× faster propagation and native LVDS drive essential for high-fidelity timing-critical systems.

Availability

TLV3604DCKR is available at Aetrix Electronics and suitable for LIDAR modules, time-of-flight sensors, and high-speed oscilloscope trigger circuits requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TLV3604DCKR 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 and embedded processing technologies, with decades of expertise in high-speed signal conditioning and precision timing solutions.

The TLV3604DCKR belongs to TI's high-speed comparator product line, engineered specifically for optical sensing, test equipment, and data acquisition systems demanding sub-nanosecond timing accuracy and LVDS interoperability.

FAQ

What is the propagation delay specification for TLV3604DCKR?

The TLV3604DCKR has a typical propagation delay of 800ps under 50mV overdrive conditions at 50MHz square wave input. This value is measured from input crossing to valid LVDS output transition and remains stable across temperature (–40°C to +125°C) and supply voltage (2.4V–5.5V), making TLV3604DCKR suitable for precision time-of-flight applications.

Does TLV3604DCKR support rail-to-rail input operation?

Yes, TLV3604DCKR supports rail-to-rail input operation with a common-mode range extending 200mV beyond both VEE and VCCI rails. This allows direct connection to AC-coupled photodiode amplifier outputs or ground-referenced signal sources without level-shifting circuitry, preserving signal integrity in TLV3604DCKR-based optical receivers.

What output standard does TLV3604DCKR implement?

TLV3604DCKR implements a true LVDS (Low-Voltage Differential Signaling) output compliant with ANSI/TIA-644-A. It delivers a 250–450mV differential swing into a 100Ω load, with matched rise/fall times (350ps) and low common-mode noise - enabling direct interface with FPGAs, ASICs, and clock/data recovery ICs expecting standard LVDS inputs.

Can TLV3604DCKR detect pulses narrower than 1ns?

Yes, TLV3604DCKR is specified to detect input pulses as narrow as 600ps while maintaining valid LVDS output transitions. This capability is validated under 50mV overdrive conditions and is critical for high-resolution LIDAR and ToF systems where TLV3604DCKR resolves closely spaced return pulses from multiple object surfaces.

What is the quiescent current consumption of TLV3604DCKR?

TLV3604DCKR draws 12.1mA typical quiescent current at VCCI = VCCO = 2.5V–5V and TA = 25°C, with variation under ±1.5mA across full temperature range (–40°C to +125°C). This fixed current draw simplifies thermal design in compact optical modules where TLV3604DCKR operates continuously during active sensing periods.