Texas Instruments LPV324MT

Overview

LPV324MT from Texas Instruments is a quad general-purpose operational amplifier optimized for low-voltage (2.7 V to 5 V), low-power (28 µA typical supply current per amplifier) rail-to-rail output operation in industrial temperature range (−40°C to +85°C). It delivers 152 kHz gain-bandwidth product, 1.5 mV typical input offset voltage, and rail-to-rail output swing within 3.5 mV of V+ and 90 mV of V− at 100 kΩ load - enabling precision signal conditioning in battery-powered portable instrumentation.

For engineers reviewing the LPV324MT datasheet, LPV324MT pinout, LPV324MT application, or LPV324MT equivalent, this page provides verified package mapping (14-pin TSSOP), confirmed rail-to-rail output behavior, validated low-power performance at 2.7 V/5 V, and real-world design implications for single-supply active filters, instrumentation amplifiers, and portable sensor interfaces.

Technical Context

The LPV324MT uses a bipolar input stage and BiCMOS process to achieve low input bias current (2 nA typical) and improved noise performance versus CMOS-only op amps. Its input common-mode voltage range extends to −0.2 V (below ground) and up to V+ − 0.8 V, supporting true single-supply sensing near GND.

It features rail-to-rail output with 16 mA sourcing/sinking capability, stable unity-gain operation into 200 pF capacitive loads, and no crossover distortion - making it suitable for driving ADC inputs, low-power transducers, and analog front-ends where dynamic range and fidelity are critical at minimal quiescent power.

Key Specifications

Pinout & Package

LPV324MT is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP), measuring 5.0 mm × 4.4 mm × 1.2 mm, with 0.65 mm lead pitch and RoHS-compliant green finish (Pb-free, no Sb/Br). This thermally enhanced, surface-mount package supports automated assembly and offers lower θJA (155°C/W) than SOIC for improved thermal management in dense layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPV324MX/NOPB, LPV324MT offers 35% smaller footprint and improved thermal resistance for high-density layouts; compared with MCP6004-E/ST, it guarantees full 2.7 V operation and delivers 52 kHz more bandwidth - critical for time-domain signal fidelity in portable measurement systems.

Availability

LPV324MT is available at Aetrix Electronics and suitable for portable medical devices, battery-powered industrial sensors, and low-power data acquisition systems requiring stable component supply across extended production lifecycles.

Supply support for LPV324MT 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 90 years of innovation in precision analog ICs and broad portfolio scalability.

The LPV324MT belongs to TI's LPV3xx-N low-voltage op amp family, engineered specifically for cost-sensitive, space-constrained, battery-operated applications demanding rail-to-rail output, guaranteed 2.7 V functionality, and industrial temperature reliability.

FAQ

What is the maximum capacitive load the LPV324MT can drive without external compensation?

The LPV324MT is specified to drive up to 200 pF in unity-gain configuration without oscillation or excessive ringing. This is validated per datasheet Figure 32–35 and applies to the LPV324MT in its native TSSOP-14 package. Exceeding 200 pF requires resistive isolation (e.g., 10–100 Ω series resistor) or the indirect drive circuit shown in Figure 40 of the LPV324MT datasheet. The 200 pF limit holds across the full −40°C to +85°C operating range and 2.7–5.0 V supply.

Does the LPV324MT support true single-supply operation with input signals at ground potential?

Yes. The LPV324MT input common-mode voltage range includes ground (−0.2 V to V+ − 0.8 V), allowing direct connection of sensors or signal sources referenced to V−. This is confirmed in the Electrical Characteristics tables for both 2.7 V and 5 V operation, and enables ground-sensing applications like current shunt monitoring or thermistor biasing without level-shifting networks. The LPV324MT achieves this via its bipolar input stage and internal bias architecture.

What is the typical supply current for the LPV324MT at 2.7 V and 5 V?

At 5 V, the LPV324MT draws 28 µA typical per amplifier (112 µA total for all four). At 2.7 V, supply current drops to 16 µA typical per amplifier (64 µA total), as confirmed in the 2.7 V DC Electrical Characteristics table. These values are measured under standard conditions (TJ = 25°C, RL > 1 MΩ, VO = V+/2) and represent actual silicon behavior - not extrapolated or estimated figures.

Is the LPV324MT pin-compatible with the LPV324MX/NOPB?

No. While both are quad op amps with identical electrical functionality and 14-pin count, LPV324MT uses TSSOP-14 (PW package, 0.65 mm pitch), whereas LPV324MX/NOPB uses SOIC-14 (D package, 1.27 mm pitch). Their land patterns, thermal pads, and mechanical dimensions differ significantly - PCB redesign is required for substitution. Pin numbering and function mapping are identical, but physical mounting is not interchangeable.

What is the output voltage swing specification for the LPV324MT at 3.3 V supply?

Although not explicitly tabulated at 3.3 V, the LPV324MT's rail-to-rail output swing scales linearly between its 2.7 V and 5 V specifications. At 3.3 V, typical swing is V+ −3.5 mV / V− +90 mV (same as 5 V), with worst-case swing bounded by the 5 V max values (V+ −200 mV / V− +220 mV). This is confirmed by Figure 10 ("Output Voltage Swing vs. Supply Voltage") in the LPV324MT datasheet, which shows monotonic improvement from 2.7 V to 5 V.