Texas Instruments LMV324IPWRE4

Overview

LMV324IPWRE4 from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for 2.7-V to 5.5-V single-supply operation, delivering 1 MHz unity-gain bandwidth, 1 V/μs slew rate, and 410 μA typical supply current per amplifier. It features rail-to-rail output swing, ground-sensing input common-mode range, and operates across –40°C to 125°C - used in motor control feedback loops, portable media player audio stages, and HVAC sensor signal conditioning.

For engineers reviewing the LMV324IPWRE4 datasheet, LMV324IPWRE4 pinout, LMV324IPWRE4 application, or LMV324IPWRE4 equivalent, this page provides verified package mapping (TSSOP-14), confirmed pin functions, real-world application context, and validated alternative parts with documented functional and application-level differences.

Technical Context

The LMV324IPWRE4 implements a CMOS-input, rail-to-rail output op-amp architecture with internal compensation for unity-gain stability. Its input stage supports common-mode voltages down to GND, enabling direct interfacing with single-ended sensors and microcontroller ADC references. Output stage design ensures full swing within 100 mV of both rails under 10-kΩ load at 2.7 V and 5 V supplies.

It lacks shutdown functionality - unlike the LMV324S variant - and operates continuously when powered. All four amplifiers share a common VCC+ and GND, with no inter-channel isolation beyond standard layout practices. No internal ESD protection diodes are connected to VCC+, limiting absolute maximum input voltage to VCC+ + 0.2 V.

Key Specifications

Pinout & Package

TSSOP-14 package (PW), body size 5.00 mm × 4.40 mm, 0.65-mm pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail output op-amp applications.

Compared with TLV2464IDR and LM324DR, the LMV324IPWRE4 uniquely balances ultra-low supply current, true rail-to-rail output, and full industrial temperature qualification - making it optimal for space-constrained, battery-sensitive, and high-ambient-temperature applications where precision is secondary to robustness and efficiency.

Availability

LMV324IPWRE4 is available at Aetrix Electronics and suitable for motor control feedback, HVAC sensor signal conditioning, and portable media player audio stages requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV324IPWRE4 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 company headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer markets.

The LMV3xx product line was engineered specifically for cost-sensitive, low-voltage (2.7–5.5 V), space-constrained applications - prioritizing rail-to-rail output, ground-sensing inputs, and wide temperature operation over ultra-low offset or high-speed performance.

FAQ

What is the maximum operating junction temperature for LMV324IPWRE4?

The LMV324IPWRE4 has an absolute maximum junction temperature of 150°C per TI SLOS263W datasheet Section 7.1. Its recommended operating free-air temperature range is –40°C to +125°C, and thermal resistance θJA is 108°C/W in the TSSOP-14 (PW) package. At 125°C ambient and 1.64 mA total supply current (4 × 410 μA), power dissipation is ~2.1 mW, resulting in junction temperature ~127°C - well within safe limits. Always verify PCB copper area and airflow in final layout.

Does LMV324IPWRE4 include shutdown functionality?

No, LMV324IPWRE4 does not include shutdown functionality. It is the standard quad version of the LMV324 family. Shutdown capability is exclusive to the LMV324S variant (e.g., LMV324SIDR), which adds two dedicated SHDN pins (Pins 8 and 9) to disable amplifier pairs. LMV324IPWRE4 draws continuous supply current - 410 μA typical per amplifier - whenever VCC+ is applied. For power-gated applications, external FET control of VCC+ is required.

Can LMV324IPWRE4 drive capacitive loads up to 1000 pF?

LMV324IPWRE4 can drive up to 1000 pF with acceptable stability - Figure 7 in SLOS263W shows phase margin remains >45° at 1000 pF with RL = 2 kΩ and VCC = 5 V. However, for loads >500 pF, TI recommends adding a 10-Ω to 50-Ω series resistor between amplifier output and capacitive load to isolate the capacitance and preserve phase margin. Without isolation, large capacitive loads may cause overshoot or ringing in pulse responses, especially at temperature extremes.

What is the input voltage range specification for LMV324IPWRE4?

The LMV324IPWRE4 input voltage range is specified as –0.2 V to VCC+ + 0.2 V per Section 7.1 Absolute Maximum Ratings. The common-mode input voltage range for normal operation (CMRR ≥50 dB) is 0 V to 1.7 V at VCC+ = 2.7 V and 0 V to 4 V at VCC+ = 5 V - meaning it fully includes GND and extends close to VCC+. This ground-sensing capability allows direct interfacing with 0–3.3 V microcontroller GPIOs and single-supply sensor bridges without external level-shifting components.

Is LMV324IPWRE4 pin-compatible with LM324DR?

No, LMV324IPWRE4 is not pin-compatible with LM324DR. LMV324IPWRE4 uses a 14-pin TSSOP (PW) package with 0.65-mm pitch, while LM324DR uses a 14-pin SOIC (D) package with 1.27-mm pitch. Although both have identical pin numbering (1OUT through 4OUT, IN+/IN– per channel, GND, VCC+), the physical dimensions, lead pitch, and thermal pad presence differ. PCB layout must be redesigned to accommodate the smaller TSSOP footprint and finer pitch - no adapter or drop-in replacement is possible without board revision.