Texas Instruments TLV342IRUGR

Overview

TLV342IRUGR from Texas Instruments is a dual, low-voltage, rail-to-rail output CMOS operational amplifier with active-low shutdown control, designed for ultra-low-power (70 μA/channel typical) and precision (1.25 mV max offset at 25°C) operation from 1.5 V to 5.5 V supply. It features 2.3 MHz gain bandwidth, 0.9 V/μs slew rate, and 1 pA input bias current - enabling high-accuracy signal conditioning in space-constrained battery-powered systems such as portable audio preamplifiers and battery monitoring circuits.

For engineers reviewing the TLV342IRUGR datasheet, TLV342IRUGR pinout, TLV342IRUGR application, or TLV342IRUGR equivalent, key selection criteria include its X2QFN-10 package footprint, dual-channel shutdown capability (45 pA typical shutdown current), rail-to-rail output swing within 7 mV of rails (at 10 kΩ load), and guaranteed operation across –40°C to +125°C industrial temperature range.

Technical Context

The TLV342IRUGR implements a PMOS input stage enabling ultra-low input bias current (1 pA typ.) and common-mode input range extending to ground and up to V+ – 0.5 V. Its CMOS output stage delivers true rail-to-rail swing with <25 mV headroom at 10 kΩ load under 1.8 V supply.

It operates in two functional modes: normal amplification when SHDN ≥ 1.5 V (1.8 V supply) or ≥4.5 V (5 V supply), and high-impedance shutdown with 45 pA typical ICC when SHDN ≤ 0.2 V - with 5 μs typical wake-up time. The device is not internally compensated for unity-gain stability but maintains ≥55° phase margin with 200 pF capacitive load.

Key Specifications

Pinout & Package

The TLV342IRUGR is housed in a 10-pin X2QFN package (1.5 mm × 2.0 mm, 0.5 mm pitch) with wettable flanks, optimized for automated optical inspection and thermal performance (R_θJA = 167°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-voltage rail-to-rail op-amp applications.

Compared with TLV9002IDR and OPA2313AIDR, the TLV342IRUGR uniquely balances sub-100-μA power, A-grade precision (1.25 mV max offset), integrated shutdown, and full industrial temperature support - making it optimal for battery-powered systems demanding both accuracy and energy efficiency across harsh environments.

Availability

TLV342IRUGR is available at Aetrix Electronics and suitable for portable audio preamplifiers, battery voltage monitors, supply current sensors, and low-power filter stages requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp.

Supply support for TLV342IRUGR 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 over 50 years of innovation in precision amplifiers and low-power signal chain products.

The TLV34xx family was engineered specifically for ultra-low-voltage (1.5–5.5 V), ultra-low-power (≤70 μA/channel) precision amplification in space-constrained, battery-operated systems - emphasizing rail-to-rail output, ground-sensing inputs, and shutdown capability.

FAQ

What is the maximum supply voltage rating for TLV342IRUGR?

The absolute maximum supply voltage for TLV342IRUGR is 5.5 V. Operation above this level risks permanent damage. Recommended operating range is 1.5 V to 5.5 V, with full specification compliance across that span - including rail-to-rail output swing and 1.25 mV max offset at 25°C. Always use a 0.1 μF ceramic bypass capacitor close to the V+ pin to ensure stability.

Does TLV342IRUGR support true rail-to-rail input?

TLV342IRUGR supports rail-to-rail *output* swing but has a limited common-mode input range: –0.2 V to (V+ – 0.5 V). This means the inputs can go slightly below ground and up to 0.5 V below V+, but not to the positive rail. For true rail-to-rail input, consider TI's TLV9062 or OPA333 families - though they lack the TLV342IRUGR's 45 pA shutdown current.

How does the shutdown pin (SHDN) function on TLV342IRUGR?

The SHDN pin on TLV342IRUGR is active-low: driving it to GND places both amplifiers in shutdown mode, reducing total supply current to 45 pA typical and placing outputs in high-impedance state. Pulling SHDN to V+ (≥1.5 V at 1.8 V supply, ≥4.5 V at 5 V supply) enables normal operation. Wake-up time from shutdown is 5 μs typical - critical for burst-mode data acquisition.

What is the thermal resistance (RθJA) of TLV342IRUGR in its X2QFN-10 package?

The junction-to-ambient thermal resistance (RθJA) for TLV342IRUGR in the RUG (X2QFN-10) package is 167°C/W, measured per JEDEC JESD51-7 on a 2-layer board with 1-in² copper pad. This value assumes standard PCB layout with thermal vias under the exposed pad. For high-power-density designs, thermal performance improves significantly with additional copper area and multiple thermal vias.

Is TLV342IRUGR suitable for automotive applications?

TLV342IRUGR is qualified for industrial temperature range (–40°C to +125°C) and meets AEC-Q200 stress test requirements for passive components, but it is *not* AEC-Q100 qualified as an integrated circuit. It is widely used in automotive cabin electronics (e.g., infotainment sensors, HVAC controls) where ambient temperatures remain within spec, but not in engine bay or safety-critical ADAS subsystems requiring full AEC-Q100 Grade 0 or 1 certification.