Texas Instruments TLV3492AID

Overview

TLV3492AID from Texas Instruments is a dual, nanopower, rail-to-rail input/output comparator with push-pull CMOS output stage, operating from 1.8 V to 5.5 V supply. It delivers 6 µs propagation delay (typical at 100 mV overdrive), 0.8 µA quiescent current per channel (typ), and input common-mode range extending 200 mV beyond both rails - enabling reliable operation in ultra-low-power, single-cell battery systems such as portable medical sensors and wireless security nodes.

For engineers reviewing the TLV3492AID datasheet, TLV3492AID pinout, TLV3492AID application, or TLV3492AID equivalent, key selection criteria include its dual-channel nanopower architecture, rail-to-rail input capability, push-pull output eliminating external pull-up needs, and SOIC-8 packaging suitable for space-constrained industrial and battery-powered designs.

Technical Context

The TLV3492AID implements a fully differential input stage with ESD-protected inputs rated ±3000 V HBM, supporting operation across –40°C to +125°C. Its push-pull output drives high- and low-side loads directly without external resistors, delivering VOH ≤ 200 mV from V+ and VOL ≤ 200 mV from V– at 5 mA load.

Input offset voltage is ±15 mV (max), with dVOS/dT of ±12 µV/°C, and CMRR of 60–74 dB depending on common-mode range. The device draws only 0.85–1.2 µA total supply current (not per channel) under static conditions, making it distinct from higher-current comparators like TLV3702 or TLV3402.

Key Specifications

Pinout & Package

TLV3492AID is housed in an 8-pin SOIC package (body size 4.90 mm × 3.91 mm), optimized for automated assembly and thermal performance (R_θJA = 201.9°C/W). The package includes exposed pad-compatible footprint per TI's mechanical drawings.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3402IDR and TLV7022DRYR, TLV3492AID uniquely combines rail-to-rail input, push-pull output, and sub-1 µA IQ in SOIC-8 - making it the only option that eliminates both pull-up resistors and input level-shifters while sustaining ultra-low power in battery-critical designs.

Availability

TLV3492AID is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, handheld instruments, and ultra-low-power IoT nodes requiring stable component supply across long production lifecycles.

Supply support for TLV3492AID 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 connectivity technologies, with over 90 years of innovation in precision analog design.

The TLV349x product line was engineered specifically for nanopower, rail-to-rail sensing in battery-constrained applications - targeting portable healthcare, industrial monitoring, and energy-harvesting systems where every nanoamp matters.

FAQ

What is the maximum supply voltage rating for TLV3492AID?

The absolute maximum supply voltage for TLV3492AID is 5.5 V. Exceeding this value may cause permanent damage. The recommended operating range is 1.8 V to 5.5 V, and operation outside this range is not guaranteed. Thermal derating applies above 125°C ambient, and junction temperature must remain below 150°C per datasheet limits.

Does TLV3492AID support rail-to-rail input operation?

Yes, TLV3492AID supports true rail-to-rail input operation with a common-mode range from (V–) – 0.2 V to (V+) + 0.2 V. This allows direct interfacing with sensors, DACs, or other circuitry operating at or slightly beyond the supply rails - a key differentiator versus comparators with limited input ranges like TLV7022.

Can TLV3492AID drive logic-level inputs directly?

Yes, TLV3492AID's push-pull CMOS output can directly drive standard CMOS and TTL logic inputs. At 5 mA load, VOH remains within 200 mV of V+ and VOL within 200 mV of V–, ensuring valid high/low logic levels across its full 1.8–5.5 V supply range without external components.

What is the typical quiescent current of TLV3492AID at 25°C?

The typical quiescent current of TLV3492AID is 0.85 µA at TA = 25°C and VS = 1.8 V to 5.5 V. This value represents total supply current for both channels - not per channel - and increases to 1.2 µA maximum across temperature and voltage extremes.

Is TLV3492AID pin-compatible with other devices in the TLV349x family?

No, TLV3492AID is not pin-compatible with TLV3491 or TLV3494 due to differing channel counts and pin assignments. However, it shares identical pin functions and layout guidelines with TLV3492 variants in SOT-23-8 (DCN) and SOIC-8 (D) packages - including TLV3492AIDR and TLV3492CDR - enabling drop-in replacement within the same package type.