Texas Instruments LMV358QDGKRG4

Overview

LMV358QDGKRG4 from Texas Instruments is a dual 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 210 μA typical supply current per amplifier - used in portable audio signal conditioning, sensor front-end buffering, and battery-powered analog monitoring circuits.

For engineers reviewing the LMV358QDGKRG4 datasheet, LMV358QDGKRG4 pinout, LMV358QDGKRG4 application, or LMV358QDGKRG4 equivalent, key selection criteria include rail-to-rail output swing down to 60 mV from rails at 2.7 V, input offset voltage of 1.7–7 mV, –40°C to 125°C automotive-grade temperature range, and VSSOP-8 package compatibility with space-constrained PCB layouts.

Technical Context

The LMV358QDGKRG4 implements a CMOS-input, rail-to-rail output op-amp architecture with common-mode input range extending to ground, enabling direct interfacing with single-ended sensors and ADC references. Its internal compensation ensures stable unity-gain operation with capacitive loads up to 100 pF without external compensation.

It operates as a true single-supply device: input common-mode range includes GND (0 V), output swings within 60–180 mV of both rails under 2.7 V/5 V supplies, and exhibits no crossover distortion across the full output range - critical for precision DC-coupled amplification in automotive HVAC and motor control feedback paths.

Key Specifications

Pinout & Package

VSSOP-8 (DGK) package: 3.0 mm × 3.0 mm body, 0.65 mm pitch, thin-profile surface-mount design for high-density PCBs.

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 LMV358IDGKR, LMV358QDGKRG4 adds AEC-Q200 qualification and extended production traceability for automotive use; versus MCP6022-E/SN, it trades bandwidth for 80% lower supply current - optimizing for always-on sensor nodes rather than high-speed data acquisition.

Availability

LMV358QDGKRG4 is available at Aetrix Electronics and suitable for automotive cabin control, industrial sensor signal conditioning, and portable medical device applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV358QDGKRG4 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 specializing in analog and embedded processing technologies, with leadership in precision analog ICs and automotive-grade components.

The LMV3xx product line was designed specifically for cost-sensitive, space-constrained, low-voltage applications - including battery-powered consumer electronics, automotive subsystems, and industrial sensor interfaces - where rail-to-rail output and ground-sensing inputs are essential.

FAQ

What is the maximum supply voltage for LMV358QDGKRG4?

The absolute maximum supply voltage for LMV358QDGKRG4 is 5.5 V. Operation above this voltage risks permanent damage. The recommended operating range is 2.7 V to 5.5 V, with full specification compliance across that span - making it ideal for 3.3 V and 5 V systems, including those powered by single-cell Li-ion batteries.

Does LMV358QDGKRG4 support true single-supply operation with inputs at ground?

Yes, LMV358QDGKRG4 supports true single-supply operation: its input common-mode voltage range extends to GND (0 V), and its output swings within 60 mV of GND at 2.7 V supply. This allows direct interfacing with ground-referenced sensors (e.g., thermistors, bridge transducers) without level-shifting circuitry - a key advantage over legacy op-amps like LM358.

What is the typical input offset voltage of LMV358QDGKRG4 and how does it affect precision applications?

The typical input offset voltage of LMV358QDGKRG4 is 1.7–7 mV at 25°C. In a unity-gain buffer driving a 12-bit ADC with 2.5 V reference, this introduces up to ±0.7 LSB error - acceptable for most industrial sensing but may require calibration in high-accuracy temperature measurement. The 5 μV/°C drift coefficient ensures stability across automotive temperature ranges.

Is LMV358QDGKRG4 pin-compatible with standard LMV358 variants?

Yes, LMV358QDGKRG4 uses the VSSOP-8 (DGK) package and shares identical pinout with LMV358IDGKR and LMV358MDEP - all follow the standard dual op-amp configuration: 1OUT, 1IN–, 1IN+, GND, VCC+, 2OUT, 2IN–, 2IN+. No PCB layout changes are needed when upgrading from industrial to automotive-qualified versions in the same package.

What thermal performance can be expected from LMV358QDGKRG4 in a VSSOP-8 package?

In the DGK (VSSOP-8) package, LMV358QDGKRG4 has a junction-to-ambient thermal resistance (RθJA) of 210°C/W. At 420 μA total supply current (210 μA per amp) and 5 V supply, power dissipation is ~2.1 mW - resulting in negligible junction temperature rise (<0.5°C) in still air. This enables reliable operation in sealed enclosures without heatsinking.