Texas Instruments LMV324IDRE4

Overview

LMV324IDRE4 from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-voltage single-supply operation (2.7 V to 5.5 V), delivering 1 MHz unity-gain bandwidth, 1 V/μs slew rate, and 410 μA typical supply current per amplifier - used in signal conditioning stages of HVAC control, motor feedback loops, and portable media player audio circuits.

For engineers reviewing the LMV324IDRE4 datasheet, LMV324IDRE4 pinout, LMV324IDRE4 application, or LMV324IDRE4 equivalent, key selection criteria include rail-to-rail output swing (±180 mV from rails at 5 V, RL = 10 kΩ), input offset voltage (7 mV typ), common-mode input range including ground, ESD protection (2000-V HBM), and SOIC-14 package compatibility with legacy LM324 layouts.

Technical Context

The LMV324IDRE4 implements a CMOS input stage with rail-to-rail output using complementary bipolar output transistors, enabling full-swing operation from V– (GND) to V+ (up to 5.5 V). Its architecture supports single-supply configurations without level-shifting circuitry while maintaining 60° phase margin and 10 dB gain margin across temperature (–40°C to 125°C).

It features a common-mode input voltage range extending to GND and up to VCC – 0.2 V, allowing direct interfacing with sensors and ADCs operating near ground. The device lacks shutdown functionality - distinguishing it from the LMV324S variant - and uses standard op-amp biasing with no internal compensation adjustments required.

Key Specifications

Pinout & Package

LMV324IDRE4 is housed in a 14-pin SOIC (D) package measuring 8.65 mm × 3.91 mm, with standard 1.27 mm pitch and surface-mount footprint compatible with IPC-7351B SOIC14_NOM.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad operational amplifier applications.

Compared with LM324DR and TLV2464CDR, LMV324IDRE4 offers optimal balance of rail-to-rail output, ultra-low power, and wide temperature range - making it ideal for cost-sensitive, battery-operated, or thermally constrained designs where 7 mV offset is acceptable.

Availability

LMV324IDRE4 is available at Aetrix Electronics and suitable for HVAC control systems, motor feedback circuits, and portable media player audio stages requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV324IDRE4 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, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog ICs.

The LMV3xx product line was designed specifically for low-voltage (2.7 V–5.5 V), space-constrained applications demanding rail-to-rail output swing, low quiescent current, and robust operation from –40°C to +125°C - targeting consumer, industrial, and automotive signal conditioning.

FAQ

What is the maximum supply voltage for LMV324IDRE4?

The absolute maximum supply voltage for LMV324IDRE4 is 5.5 V. Operation above this value risks permanent damage. Recommended operating range is 2.7 V to 5.5 V, with full electrical specifications guaranteed across this span. At 5.5 V, output swing remains within 200 mV of rails under 10 kΩ load, and input common-mode range extends to VCC – 0.2 V. Exceeding 5.5 V violates Absolute Maximum Ratings and voids TI's warranty coverage for LMV324IDRE4.

Does LMV324IDRE4 support rail-to-rail input?

No, LMV324IDRE4 does not support rail-to-rail input. Its common-mode input voltage range is specified from GND to VCC – 0.2 V at 25°C, meaning the upper limit falls short of the positive rail by at least 200 mV. This limitation prevents direct sensing of signals at VCC but allows full ground-referenced operation - unlike older LM324 variants that require input bias above GND. Input stage design prioritizes low cost and low power over full rail compliance, making LMV324IDRE4 suitable for sensor interfaces where signals stay below VCC – 0.2 V.

What is the typical input offset voltage of LMV324IDRE4?

The typical input offset voltage of LMV324IDRE4 is 7 mV at 25°C and VCC = 5 V, with a maximum of 9 mV across the full temperature range (–40°C to +125°C). This parameter reflects inherent mismatches in the input transistor pair and directly impacts DC accuracy in precision gain stages. For applications requiring <1 mV offset, external trimming or auto-zero architectures (e.g., OPAx333) are recommended. The 5 μV/°C average temperature coefficient means offset drift adds ≤0.5 mV over a 100°C span, which must be factored into system-level calibration routines for LMV324IDRE4.

Can LMV324IDRE4 drive a 600 Ω load?

Yes, LMV324IDRE4 can drive a 600 Ω load, but output swing is reduced: at VCC = 5 V, high-level output drops to VCC – 400 mV and low-level rises to 400 mV above GND - limiting usable swing to ~4.2 Vpp. Sourcing/sinking capability is rated at ±20 mA short-circuit current, so 600 Ω at 4 V yields ~6.7 mA, well within safe limits. However, stability must be verified - capacitive loads >100 pF may induce peaking or oscillation due to phase margin reduction. For reliable 600 Ω driving, add a 10 Ω series resistor at the output and verify step response on prototype LMV324IDRE4 circuits.

Is LMV324IDRE4 pin-compatible with LM324?

Yes, LMV324IDRE4 is pin-compatible with industry-standard LM324 in SOIC-14 packages, sharing identical pinout (1OUT, 1IN–, 1IN+, VCC+, 2IN+, 2IN–, 2OUT, GND, 3IN+, 3IN–, 3OUT, 4IN–, 4IN+, 4OUT). No PCB layout changes are required for migration. Key differences include lower supply current (410 μA vs. 1.4 mA), rail-to-rail output (vs. 1.5 V headroom), and extended temperature range (–40°C to +125°C vs. 0°C to +70°C for commercial LM324). Electrical validation is still recommended due to different small-signal dynamics and noise characteristics in LMV324IDRE4.