Texas Instruments TLV3494AIPWR

Overview

TLV3494AIPWR from Texas Instruments is a quad nanopower push-pull output comparator optimized for ultra-low-power, single-supply systems. It operates from 1.8 V to 5.5 V, draws only 0.8 µA typical supply current per channel, features rail-to-rail input range extending 200 mV beyond supply rails, and delivers 6 µs propagation delay at 100 mV overdrive - enabling precision threshold detection in battery-powered medical sensors and portable instrumentation.

For engineers reviewing the TLV3494AIPWR datasheet, TLV3494AIPWR pinout, TLV3494AIPWR application, or TLV3494AIPWR equivalent, key selection criteria include its 14-pin TSSOP package, push-pull CMOS output (no external pull-up required), ±15 mV max input offset voltage, operation down to 1.8 V, and suitability for power-on reset, zero-crossing detection, and low-voltage hysteresis circuits.

Technical Context

The TLV3494AIPWR implements a rail-to-rail input stage with ESD-protected diodes allowing common-mode voltages from (V–) – 0.2 V to (V+) + 0.2 V, and a push-pull CMOS output stage eliminating shoot-through current and external pull-up components. Its architecture supports stable operation across –40°C to +125°C with no functional mode switching.

Each of its four independent comparators shares identical electrical characteristics: 0.85–1.2 µA quiescent current per channel, ±3 mV typical input offset voltage, 60–74 dB common-mode rejection ratio, and 100 ns rise/fall times into 10 pF load - all specified over full 1.8–5.5 V supply range.

Key Specifications

Pinout & Package

TLV3494AIPWR is housed in a 14-pin TSSOP package (5.00 mm × 4.40 mm body size) with exposed pad not electrically connected. The package supports standard reflow profiles and offers improved thermal performance over SOIC (R_θJA = 120.8°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad nanopower comparator applications.

Compared with TLV3494IPWR and TLV3704IPWR, TLV3494AIPWR uniquely combines 1.8-V operation, push-pull outputs, and TSSOP packaging - delivering optimal size-power-performance balance for next-generation portable electronics.

Availability

TLV3494AIPWR is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and handheld instruments requiring stable component supply across long production lifecycles.

Supply support for TLV3494AIPWR 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 precision signal chain and low-power design.

The TLV349x product line was engineered specifically for nanopower, rail-to-rail comparators in battery-constrained applications - targeting single-cell and energy-harvesting systems where every nanoamp matters.

FAQ

What is the maximum operating temperature for TLV3494AIPWR?

The TLV3494AIPWR is rated for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated across all electrical parameters in the datasheet, including input offset voltage drift (±12 µV/°C) and propagation delay stability, making it suitable for automotive cabin modules and industrial edge sensors where thermal stress is present.

Does TLV3494AIPWR require external pull-up resistors on its outputs?

No, TLV3494AIPWR does not require external pull-up resistors because it features a push-pull CMOS output stage. Each output actively drives high or low depending on the input comparison result. This eliminates standby current through pull-up resistors and simplifies interface with 1.8-V microcontrollers - a key advantage over open-drain comparators like TLV3704.

Can TLV3494AIPWR operate from a 1.8-V supply while driving a 3.3-V logic input?

Yes, TLV3494AIPWR can interface with 3.3-V logic when powered from 1.8 V, provided the receiving device accepts 1.8-V logic-high levels. Its VOH is typically 1.7 V (within 100 mV of V+) and VOL is 200 mV max at 5 mA sink - meeting input thresholds of most 3.3-V CMOS receivers. For guaranteed compatibility, verify VIH/VIL specs of the target IC.

How is hysteresis implemented with TLV3494AIPWR?

Hysteresis is added externally to TLV3494AIPWR by feeding a portion of the output back to the noninverting input through a resistor divider. For example, connecting a 560-kΩ resistor from OUT to +IN and a 39-kΩ resistor from +IN to GND sets ~380 mV of hysteresis. This prevents chatter near the threshold caused by noise, especially critical in battery voltage monitoring and sensor wake-up circuits using TLV3494AIPWR.

What decoupling capacitors are recommended for TLV3494AIPWR?

Texas Instruments recommends placing a 0.01-µF ceramic capacitor in parallel with a 10-µF electrolytic (or tantalum) capacitor between V+ and V– pins, located as close as possible to the TLV3494AIPWR package. This dual-capacitor approach suppresses both high-frequency switching noise and low-frequency supply droop - essential for maintaining 6-µs propagation delay accuracy and preventing false triggering in sensitive applications using TLV3494AIPWR.