The LMV358B-VR is a low-voltage, low-power dual operational amplifier optimized for battery-powered signal conditioning. Typical supply range is 2.5–5.5 V, quiescent current around 80 μA per channel, and single-supply gain-bandwidth near 1 MHz, making it suitable for sensor front-ends and portable electronics. This introduction frames the key measured parameters designers extract from a datasheet to present reproducible electrical results and practical verification guidance for system integration.

Background: LMV358B-VR at a glance

Functional description (what to state)

Functionally, designers should state that the LMV358B-VR is a general-purpose, single-supply dual op amp with rail-to-rail input/output behavior and two independent channels. It targets sensor front-ends, portable and handheld electronics, and MCU interface applications where low-voltage operation and low quiescent current are prioritized. Concise functional text helps readers map datasheet parameters to real use cases.

Where it fits in designs (context)

Target use cases include battery sensor amplifiers, low-power data-acquisition front ends, and line-level buffers for portable equipment. Low-voltage operation, low-power quiescent current, and RRIO behavior reduce the need for level-shifting and extend battery life. Call out constraints such as supply headroom for large swings, required output drive into expected loads, and noise budget early in any datasheet overview.

Key electrical specs (recommended datasheet extract)

Power & supply parameters (must include)

The electrical specs section should list supply range (2.5–5.5 V typical), quiescent supply current per channel (~80 μA typ), and absolute maximum ratings (e.g., ±0.5 V beyond rails or specified by manufacturer). Include measurement conditions: VIN within common-mode limits, VOUT unloaded or with specified RL, TA (ambient) at 25°C for typical and full specified range for limits. State test setups so numbers are reproducible across labs and publications.

Input/output & drive characteristics

Provide input common-mode range, input offset (typical and maximum), offset drift, and input bias currents with their test conditions. Explicitly document RRIO behavior limits near rails and expected VOUT swing into specified loads (e.g., RL to VCC/2 or to ground). For output drive, include short-circuit or load drive specs and a recommended test circuit specifying supply decoupling, RL, and VIN to distinguish typ vs. max values.

Performance characteristics & test data

AC performance and stability

Present GBW (~1 MHz), slew rate, phase margin, and unity-gain stability notes with defined load conditions. Recommend plots: gain vs. frequency (log scale up to 10× GBW), phase vs. frequency, and step response with defined input step amplitude and RL. Call out recommended compensation or load ranges if the amplifier approaches instability under capacitive loading.

Noise, offset, and temperature behavior

Include input-referred noise density (e.g., nV/√Hz at 1 kHz), offset vs. temperature curves, and recommended operating temperature range with derating notes. Provide a typical vs. worst-case table for offset and noise across temperature extremes and show how to interpret a temperature sweep: list sample points, dwell times, and whether results are measured after thermal equilibrium.

Design & application guidelines (practical how-to)

Typical circuits and recommended application schematics

Offer 2–3 canonical circuits: single-supply unity-gain buffer (Rf = open, RL = 100 kΩ), non-inverting sensor amplifier (gain = 10, R1 = 10 kΩ, R2 = 90 kΩ, single-supply biasing), and first-order RC low-pass (R = 10 kΩ, C = 10 nF). For each, state which electrical specs to verify: input common-mode margin, output swing into RL, gain accuracy (offset and bias impact), and bandwidth under the chosen gain.

PCB layout, decoupling, and measurement tips

Layout rules: minimize trace length between VCC/VSS and decoupling caps, place a 0.1 μF ceramic cap within 2–3 mm of supply pins, and use a short ground return for input sources. Measurement tips: use low-capacitance probes, add series resistance for large capacitive loads, filter supplies to reproduce datasheet conditions, and specify probe loading in the measurement notes to ensure reproducible electrical specs.

Comparison & typical use cases (case studies)

Tradeoffs and selection checklist

Selection checklist: compare power vs. bandwidth (quiescent current vs. GBW), RRIO headroom for expected swing, and input offset relative to signal amplitude. Prioritize quiescent current and RRIO for battery sensors, bandwidth and slew rate for transient or AC-coupled signals, and offset/noise for high-precision front ends. This checklist helps narrow candidates quickly.

• Prioritize supply range and quiescent current for battery-life-limited designs.
• Prioritize GBW and slew rate for AC or transient-rich signals.
• Prioritize offset/noise for precision sensor interfaces.

Example application snapshots

• Battery sensor amplifier — highlight supply range and low quiescent current to maximize runtime while maintaining required gain and input margin.
• Low-power data-acquisition front end — emphasize input offset/drift and input-referred noise versus system ADC resolution.
• Simple buffer for MCU ADC — verify rail-to-rail output swing into ADC input and confirm drive into expected input capacitance.

Practical checklist & publication notes (action items for writers)

Datasheet publication checklist (must-have items)

Include the electrical specs table (typ/max), absolute maximum ratings, recommended test circuits, AC plots (gain/phase/step), noise and offset vs. temperature, thermal derating guidance, and full pinout/packaging info. For editorial keyword guidance: recommend using the main keyword LMV358B-VR in the title and intro (1–2×), and include it once in the summary; provide authors guidance on additional H2 mentions as needed for SEO but avoid overuse to keep readability.

SEO & writing notes for US technical audience

Use concise, data-first language and US technical conventions (imperial units where applicable, dollars only in procurement notes). Suggested long-tail keywords to weave naturally: "LMV358B-VR low-voltage op amp datasheet", "LMV358B-VR electrical specifications and test conditions", and "LMV358B-VR RRIO op amp performance". Avoid distributor names; focus on reproducible specs and measurement conditions.

Summary

• The LMV358B-VR delivers a 2.5–5.5 V supply window, low quiescent current (~80 μA/channel), and ~1 MHz GBW with RRIO behavior, making the LMV358B-VR suitable for battery-powered sensor and MCU-interface applications where power and rail swing matter.
• Datasheet emphasis should be on clear electrical specs tables, defined measurement conditions, AC plots (gain/phase/step), and temperature sweep data so designers can reproduce performance in system tests.
• Actionable recommendation: prioritize verifying supply headroom, output drive into expected RL, offset vs. temperature, and bandwidth under intended gain as first tests when qualifying the part for the target application.

Common Questions

What is the supply range of the LMV358B-VR?

The specified operating supply range is 2.5–5.5 V. For reproducible reporting, list the supply, ambient temperature, and whether the output is measured into a specified load. Include absolute maximum values separately to warn against overvoltage conditions and to guide system-level transient protection design.

How low is the quiescent current for LMV358B-VR in typical use?

Typical quiescent current is near 80 μA per channel under nominal conditions. State test conditions (VCC, VIN at quiescent input, no external load) and provide both typical and guaranteed maximum values so designers can budget battery life and compare to alternative amplifiers.

Does the LMV358B-VR support rail-to-rail input and output in practical circuits?

The device is characterized for RRIO behavior, but practical headroom depends on load and supply. Verify VOUT swing into the expected RL and test input common-mode limits near rails. Document test circuits and measurement points to ensure claims match system-level conditions.