Texas Instruments LMV358QDGKR

Overview

LMV358QDGKR from Texas Instruments is a dual rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5.5 V) single-supply operation, delivering 1 MHz unity-gain bandwidth, 1 V/μs slew rate, and 210 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 - enabling use in motor control feedback loops, portable media player audio stages, and HVAC sensor signal conditioning.

For engineers reviewing the LMV358QDGKR datasheet, LMV358QDGKR pinout, LMV358QDGKR application, or LMV358QDGKR equivalent, key selection criteria include its dual-channel configuration in VSSOP-8 package, guaranteed rail-to-rail output drive into 10 kΩ loads, input offset voltage ≤7 mV at 25°C, and compatibility with space-constrained industrial and consumer designs requiring low quiescent current and wide temperature support.

Technical Context

The LMV358QDGKR implements a CMOS input stage with complementary bipolar output stage, enabling rail-to-rail output swing while maintaining low input bias current (11–250 nA) and low input offset drift (5 μV/°C). Its internal architecture supports stable unity-gain operation with 60° phase margin and 10 dB gain margin under 2 kΩ load conditions.

It operates as a true single-supply op amp: the input common-mode range extends from –0.2 V to (V_CC – 0.2 V), allowing direct interfacing with ground-referenced sensors, and the output swings within 60–180 mV of each rail depending on load - critical for maximizing dynamic range in 3.3-V or 2.7-V systems.

Key Specifications

Pinout & Package

The LMV358QDGKR is housed in an 8-pin VSSOP package (3.0 mm × 3.0 mm body size), optimized for high-density PCB layouts and thermal performance (R_θJA = 172°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-voltage rail-to-rail output operational amplifier applications.

Compared with LMV358IDGKR, the LMV358QDGKR provides guaranteed operation to +125°C and AEC-Q100 qualification for automotive use, while MCP6022-E/SN trades lower offset and higher speed for increased quiescent current and reduced temperature margin - making LMV358QDGKR optimal for cost-sensitive, thermally demanding dual-op-amp roles.

Availability

LMV358QDGKR is available at Aetrix Electronics and suitable for motor control feedback, portable audio signal conditioning, and HVAC temperature sensing requiring stable component supply across automotive, industrial, and consumer design cycles.

Supply support for LMV358QDGKR 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, power management, and signal chain solutions.

The LMV3xx product line was designed specifically for cost-sensitive, space-constrained applications requiring rail-to-rail output performance at 2.7–5.5 V - targeting portable electronics, industrial sensors, and automotive subsystems where low voltage and wide temperature range are mandatory.

FAQ

What is the maximum supply voltage for LMV358QDGKR?

The absolute maximum supply voltage for LMV358QDGKR is 5.5 V, as specified in Section 7.1 of the official Texas Instruments datasheet (SLOS263W). Operation beyond this voltage risks permanent damage. Recommended operating range is 2.7 V to 5.5 V, with full parameter guarantees across that span - making it compatible with standard 3.3-V and 5-V logic domains.

Does LMV358QDGKR support true single-supply operation with inputs at ground?

Yes, LMV358QDGKR supports true single-supply operation with inputs extending to ground (–0.2 V minimum common-mode voltage). Its input stage is designed to function correctly with signals referenced to GND, eliminating the need for external level-shifting circuitry when interfacing with ground-based sensors like thermistors or strain gauges - a key advantage over legacy op amps such as LM358.

What is the typical supply current consumption of LMV358QDGKR at 3.3 V?

At 3.3 V supply and 25°C, LMV358QDGKR draws 210 μA typical supply current per amplifier (420 μA total for both channels), as confirmed in Section 7.5 and 7.6 of the TI datasheet. This value remains stable across the –40°C to +125°C range, with worst-case ICC ≤ 440 μA per amplifier at full temperature extremes - enabling predictable power budgeting in thermally varied environments.

Is LMV358QDGKR pin-compatible with standard LM358 packages?

No, LMV358QDGKR is not pin-compatible with through-hole or SOIC-packaged LM358 variants. It uses an 8-pin VSSOP (DGK) package with 0.65-mm pitch, whereas standard LM358 uses 8-pin SOIC (D) or PDIP. The pinout differs: LMV358QDGKR places GND on Pin 4 and V_CC+ on Pin 8, while LM358 SOIC has V_CC+ on Pin 8 and GND on Pin 4 - requiring PCB layout revision for migration.

What is the output voltage swing capability of LMV358QDGKR into a 10-kΩ load?

Into a 10-kΩ load, LMV358QDGKR delivers rail-to-rail output swing: high-level output reaches within 60–180 mV of V_CC+, and low-level output sinks to within 60–180 mV of GND, depending on supply voltage and temperature. At 2.7 V and 25°C, typical swing is V_CC – 0.06 V (high) and 0.06 V (low), preserving >95% of full-scale dynamic range for ADC interfacing.