Texas Instruments TLV3603DCKR

Overview

TLV3603DCKR from Texas Instruments is a 325 MHz high-speed comparator with 2.5 ns propagation delay, rail-to-rail inputs extending 200 mV beyond both supply rails, ±5 mV input offset voltage, and push-pull output. It operates from 2.4 V to 5.5 V and supports adjustable hysteresis and latch functionality via the LE/HYS pin - used in LIDAR distance sensing, clock/data recovery, and oscilloscope trigger circuits.

For engineers reviewing the TLV3603DCKR datasheet, TLV3603DCKR pinout, TLV3603DCKR application, or TLV3603DCKR equivalent, key selection considerations include its 6-pin SC70 package, hysteresis control capability, latch mode timing (tSETUP = –1.4 ns, tHOLD = 7.2 ns), and guaranteed performance across –40°C to +125°C.

Technical Context

The TLV3603DCKR implements a single-channel, high-speed comparator architecture with differential input stage optimized for sub-3 ns propagation delay and low overdrive dispersion (600 ps). Its push-pull output eliminates external pull-up resistors and enables direct interfacing with CMOS logic.

Functional modes are controlled by the LE/HYS pin: floating or resistor-biased configures adjustable hysteresis (3–60 mV range); logic-low assertion enables latch mode with 7 ns latch-to-output delay and known startup state; logic-high returns to active comparison mode.

Key Specifications

Pinout & Package

TLV3603DCKR is housed in a 6-pin SC70 package (1.25 mm × 2.00 mm body size) with wettable flanks, suitable for automated optical inspection (AOI) and space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3603DCKR, TLV3603EDCKR offers broader thermal qualification without functional trade-offs, while LMH7322MA/NOPB provides dual-channel capability at higher propagation delay and no hysteresis control - making TLV3603DCKR uniquely suited for single-channel, noise-sensitive, latch-enabled timing-critical designs.

Availability

TLV3603DCKR is available at Aetrix Electronics and suitable for LIDAR systems, oscilloscope trigger modules, and laser rangefinders requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.

Supply support for TLV3603DCKR 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 delivering analog and embedded processing solutions with emphasis on precision, reliability, and energy efficiency.

The TLV360x family was designed specifically for high-speed timing-critical applications including time-of-flight measurement, clock/data recovery, and instrumentation trigger systems - prioritizing low propagation delay, rail-to-rail input operation, and flexible noise mitigation.

FAQ

What is the maximum operating temperature for TLV3603DCKR?

The TLV3603DCKR is rated for operation from –40°C to +125°C ambient temperature under recommended conditions. This range is confirmed in Section 6.3 of the official datasheet and applies to all electrical specifications unless otherwise noted. The TLV3603EDCKR variant extends the lower limit to –55°C, but TLV3603DCKR itself maintains full specification compliance across its stated range. Thermal derating is not required within these bounds.

Does TLV3603DCKR support true rail-to-rail input operation?

Yes, TLV3603DCKR supports input voltages from VEE – 0.2 V to VCC + 0.2 V, enabling operation 200 mV beyond both supply rails. This is explicitly specified in Section 6.3 (Recommended Operating Conditions) and verified across temperature. It allows direct interfacing with signals exhibiting overshoot or undershoot - critical in high-speed pulse detection applications like LIDAR and oscilloscope front-ends where signal integrity margins are tight.

How does the LE/HYS pin function in TLV3603DCKR?

The LE/HYS pin on TLV3603DCKR serves dual roles: when pulled low, it enables latch mode (output holds last state); when biased with a resistor to ground, it sets hysteresis voltage (3–60 mV). Logic thresholds are VIH ≥ VEE + 1.5 V and VIL ≤ VEE + 0.35 V. No external pull-up is required - floating defaults to hysteresis mode. This pin is unique to TLV3603(E) variants and is not present on TLV3601 or TLV3602.

What is the minimum input pulse width TLV3603DCKR can reliably detect?

TLV3603DCKR can reliably detect input pulses as narrow as 1.25 ns under standard test conditions (VOVERDRIVE = VUNDERDRIVE = 50 mV, PWOUT = 90% of PWIN). This value is specified in Section 6.5 (Electrical Characteristics) and validated across temperature and supply voltage. Pulse width detection capability is enabled by its 2.5 ns propagation delay and low overdrive dispersion, making it suitable for time-of-flight and ultrafast event capture.

Is TLV3603DCKR pin-compatible with other devices in the TLV360x family?

No, TLV3603DCKR is not pin-compatible with TLV3601 or TLV3602. It uses a 6-pin SC70 package with LE/HYS pin (Pin 5), whereas TLV3601 uses 5-pin SC70/SOT-23 and TLV3602 uses 8-pin VSSOP/WSON. Pin mapping differs fundamentally: TLV3603DCKR has dedicated latch/hysteresis control, absent in other variants. Direct substitution requires PCB layout revision and firmware logic updates to manage the LE/HYS control signal.