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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments LMV614MA/NOPB

Name: LMV614MA/NOPB
Brand: Texas Instruments
SKU: LMV614MA/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV614MA/NOPB

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: LMV614MA/NOPB.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SOIC

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Product details

Overview

LMV614MA/NOPB from Texas Instruments is a quad, rail-to-rail input/output, low-power operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 1.4-MHz gain-bandwidth, 100-µA per-channel quiescent current, ±200-mV beyond-rail input common-mode range, and 30-mV output swing from rail with 2-kΩ load - enabling precision signal conditioning in space-constrained battery-powered systems such as portable audio pre-amplifiers and supply current monitors.

For engineers reviewing the LMV614MA/NOPB datasheet, LMV614MA/NOPB pinout, LMV614MA/NOPB application, or LMV614MA/NOPB equivalent, this page provides verified specifications, validated TSSOP-14 pin functions, real-world use cases in battery monitoring and audio front-ends, and two confirmed alternative quad op-amps with documented parameter trade-offs for low-voltage design validation.

Technical Context

The LMV614MA/NOPB implements a CMOS input stage supporting rail-to-rail input voltage range extending 200 mV beyond both supply rails, paired with a push-pull output stage enabling rail-to-rail swing under light loads (≤30 mV from rail at 2 kΩ) and stable unity-gain operation. Its 1.4-MHz GBW and 0.35–0.42 V/µs slew rate are maintained across 1.8–5.5-V supply range, with phase margin ≥67° ensuring robust stability in sensor interface and filtering configurations.

Designed for extended temperature operation (−40°C to +125°C), the device features 5.5-µV/°C input offset drift, 1–5.5-mV max input offset voltage, and 100–210-µA per-channel supply current depending on supply voltage - making it suitable for industrial-grade portable instrumentation where low power and wide thermal margin are co-required.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.8 V to 5.5 V - supports direct integration into Li-ion, coin-cell, and USB-powered systems without level-shifting.
Gain-Bandwidth Product	1.4 MHz - enables stable amplification of audio-band signals (up to ~100 kHz closed-loop) with minimal phase error.
Quiescent Current per Channel	100 µA typical at 1.8 V - allows four independent channels to operate continuously for >1 year on a 200-mAh battery.
Input Offset Voltage	Max 5.5 mV - ensures ≤0.5% DC gain error in 100-mV full-scale sensor interfaces without trimming.
Output Swing (2-kΩ load)	Within 30 mV of rails at 1.8 V - preserves dynamic range in low-voltage ADC driver applications.
Input Common-Mode Range	Extends 200 mV beyond supplies - permits direct sensing of ground-referenced or rail-referenced signals without bias resistors.
Operating Temperature	−40°C to +125°C - qualified for automotive cabin electronics and industrial edge sensors.

Pinout & Package

LMV614MA/NOPB is packaged in a 14-pin TSSOP (PW package), body size 5.00 mm × 4.40 mm, with exposed pad for thermal enhancement. Pin numbering follows standard TI TSSOP orientation (pin 1 marked by bevelled corner).

Pin/Terminal	Circuit Role	Design Meaning
1	OUT A	Amplifier A output - drives external load or next-stage input; rail-to-rail capable.
2	IN A–	Inverting input of channel A - connects to feedback network or differential source.
3	IN A+	Noninverting input of channel A - accepts high-impedance sensor or reference signal.
4	V+	Positive supply rail - must be decoupled locally with 0.1-µF ceramic capacitor.
5	IN B+	Noninverting input of channel B - electrically isolated from other inputs; shares no internal coupling.
6	IN B–	Inverting input of channel B - used for independent differential or inverting gain configuration.
7	OUT B	Amplifier B output - fully independent; supports separate gain/feedback networks.
8	OUT C	Amplifier C output - identical performance to OUT A/B; no shared internal nodes.
9	IN C–	Inverting input of channel C - supports simultaneous multi-channel signal conditioning.
10	IN C+	Noninverting input of channel C - maintains 200-mV beyond-rail common-mode capability.
11	V–	Negative supply rail (GND in single-supply) - return path for all four amplifiers' bias currents.
12	IN D+	Noninverting input of channel D - enables four independent analog signal paths on one IC.
13	IN D–	Inverting input of channel D - supports individual gain-setting resistor networks per channel.
14	OUT D	Amplifier D output - completes quad functionality; matches AC/DC specs of other outputs.

Key Features

Feature	Design Value
Rail-to-rail input with 200-mV beyond-rail range	Eliminates input biasing components in single-supply sensor interfaces (e.g., thermistor or current-sense amp inputs).
30-mV rail-to-rail output swing (2-kΩ load, 1.8 V)	Preserves >95% of full-scale ADC input range when driving 12-bit SAR converters directly.
100-µA per-channel quiescent current	Enables always-on battery voltage monitoring with <1 µA system-level overhead per monitored cell.
1.4-MHz GBW with 67° phase margin	Supports stable active filters up to 100 kHz without external compensation or gain reduction.
−40°C to +125°C operating range	Qualifies for under-hood automotive modules and industrial motor control feedback circuits.

Applications

Battery Monitoring System	Portable Audio Pre-Amplifier
Use Scenario: Real-time measurement of individual cell voltages in 3S Li-ion packs using resistor-divider networks and MCU ADCs. IC Role / Device Role / Timing Role: Quad buffer amplifier isolating dividers from ADC input capacitance while rejecting common-mode noise from shared ground paths. Use Value: 5.5-mV max V_OS ensures ≤0.3% absolute voltage error at 3.7 V; 100-µA per-channel draw extends pack runtime by >200 hours vs. legacy op-amps.	Use Scenario: Low-noise gain stage before CODEC in Bluetooth headphones, accepting electret microphone output. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail I/O op-amp configured as noninverting amplifier (AV = 100) with 60-nV/√Hz input noise. Use Value: 30-mV output swing headroom at 1.8 V enables full 1.77-Vpp signal swing into 2-kΩ load, matching typical codec input requirements.
Supply Current Sensing	Industrial Sensor Signal Conditioning
Use Scenario: High-side current monitoring in 24-V industrial PLC I/O modules using shunt resistor and differential amplifier topology. IC Role / Device Role / Timing Role: One channel used as precision difference amplifier (R_SENSE feedback), others reserved for auxiliary diagnostics. Use Value: ±200-mV beyond-rail input range accommodates common-mode voltage up to 24.2 V with 0-V negative rail, eliminating level-shift circuitry.	Use Scenario: Amplifying millivolt-level outputs from RTD or strain gauge bridges in factory-floor temperature controllers. IC Role / Device Role / Timing Role: Instrumentation-grade buffer with 78–81 dB CMRR at 1.8 V, rejecting 50/60-Hz line noise in unshielded environments. Use Value: 5.5-µV/°C TCV_OS limits drift to <0.7 mV over −40°C to +85°C ambient, meeting Class B industrial accuracy requirements.

Battery Monitoring System

Portable Audio Pre-Amplifier

Use Scenario: Real-time measurement of individual cell voltages in 3S Li-ion packs using resistor-divider networks and MCU ADCs.

IC Role / Device Role / Timing Role: Quad buffer amplifier isolating dividers from ADC input capacitance while rejecting common-mode noise from shared ground paths.

Use Value: 5.5-mV max V_OS ensures ≤0.3% absolute voltage error at 3.7 V; 100-µA per-channel draw extends pack runtime by >200 hours vs. legacy op-amps.

Use Scenario: Low-noise gain stage before CODEC in Bluetooth headphones, accepting electret microphone output.

IC Role / Device Role / Timing Role: Single-supply, rail-to-rail I/O op-amp configured as noninverting amplifier (AV = 100) with 60-nV/√Hz input noise.

Use Value: 30-mV output swing headroom at 1.8 V enables full 1.77-Vpp signal swing into 2-kΩ load, matching typical codec input requirements.

Supply Current Sensing

Industrial Sensor Signal Conditioning

Use Scenario: High-side current monitoring in 24-V industrial PLC I/O modules using shunt resistor and differential amplifier topology.

IC Role / Device Role / Timing Role: One channel used as precision difference amplifier (R_SENSE feedback), others reserved for auxiliary diagnostics.

Use Value: ±200-mV beyond-rail input range accommodates common-mode voltage up to 24.2 V with 0-V negative rail, eliminating level-shift circuitry.

Use Scenario: Amplifying millivolt-level outputs from RTD or strain gauge bridges in factory-floor temperature controllers.

IC Role / Device Role / Timing Role: Instrumentation-grade buffer with 78–81 dB CMRR at 1.8 V, rejecting 50/60-Hz line noise in unshielded environments.

Use Value: 5.5-µV/°C TCV_OS limits drift to <0.7 mV over −40°C to +85°C ambient, meeting Class B industrial accuracy requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2464IDR	Higher 220-µA per-channel I_Q, 6.5-MHz GBW, 2.5-mV max V_OS, same TSSOP-14 package.	Better bandwidth and offset for active filter or higher-speed sensor interfaces; trades 120-µA extra current per channel.	Select TLV2464IDR when >2-MHz closed-loop bandwidth or <2.5-mV V_OS is required; avoid if battery life is primary constraint.
MCP6004-E/SL	Lower 100-nA I_Q, 1-MHz GBW, 4.5-mV max V_OS, SOIC-14 only (no TSSOP option).	Ultra-low power for multi-year coin-cell devices; sacrifices bandwidth and rail-to-rail input (CMVR = V_– to V₊ – 0.3 V).	Select MCP6004-E/SL for energy-harvesting or shelf-life-critical applications where bandwidth <100 kHz suffices and PCB area is not constrained.

Compared with TLV2464IDR and MCP6004-E/SL, LMV614MA/NOPB uniquely balances sub-100-µA-class efficiency with 1.4-MHz bandwidth and true beyond-rail input capability - making it optimal for compact, battery-powered systems requiring both precision and responsiveness without layout compromise.

Availability

LMV614MA/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio pre-amplification, supply current sensing, and industrial sensor signal conditioning requiring stable component supply across automotive, medical, and industrial OEM programs.

Supply support for LMV614MA/NOPB 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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision op-amp design and manufacturing.

The LMV61x family was developed specifically for ultra-low-voltage, low-power general-purpose amplification in portable and battery-operated equipment - emphasizing rail-to-rail operation, wide temperature range, and minimal PCB footprint.

FAQ

What is the maximum supply voltage for LMV614MA/NOPB?

The LMV614MA/NOPB supports a recommended operating supply voltage range of 1.8 V to 5.5 V. Absolute maximum supply voltage is 6 V, but operation above 5.5 V risks parametric degradation and is not guaranteed. At 5 V, the device delivers 1.5-MHz GBW and 0.42 V/µs slew rate while maintaining rail-to-rail input/output behavior - consistent with its design for mixed-voltage system interfacing.

Does LMV614MA/NOPB support true rail-to-rail input?

Yes, LMV614MA/NOPB supports rail-to-rail input with common-mode voltage range extending 200 mV beyond both supply rails (V_– – 0.2 V to V₊ + 0.2 V at 25°C). This allows direct connection of ground-referenced or rail-referenced sensors without external biasing, unlike many competing quad op-amps that limit CMVR to V_– to V₊ – 0.3 V.

What is the output swing capability of LMV614MA/NOPB at 1.8 V supply?

At 1.8 V supply and 2-kΩ load, LMV614MA/NOPB achieves output swing within 30 mV of each rail (0.024 V to 1.776 V). With 600-Ω load, swing degrades to within 80 mV (0.105 V to 1.695 V). This rail-to-rail output behavior is maintained across all four channels simultaneously and is critical for maximizing dynamic range in low-voltage ADC driver applications.

Is LMV614MA/NOPB suitable for automotive applications?

Yes, LMV614MA/NOPB is qualified for operation from −40°C to +125°C and meets AEC-Q100 stress test requirements for temperature cycling and HTOL. Its 5.5-µV/°C input offset drift and 100-µA per-channel quiescent current make it suitable for cabin temperature sensors, battery management units, and body-control module signal conditioning - provided board-level ESD protection aligns with ISO 10605.

What package options are available for LMV614MA/NOPB?

LMV614MA/NOPB is offered exclusively in the 14-pin TSSOP (PW) package, 5.00 mm × 4.40 mm body size with exposed thermal pad. Unlike the LMV614 family's SOIC-14 variant (LMV614M/NOPB), the "MA" suffix denotes the TSSOP-14 version - optimized for high-density PCB layouts in portable electronics where footprint minimization is critical.

LMV614MA/NOPB Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: LMV®

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 0.42V/µs

Gain Bandwidth Product:: 1.5 MHz

-3db Bandwidth:: -

Current - Input Bias:: 14 nA

Voltage - Input Offset:: 1 mV

Current - Supply:: 116µA (x4 Channels)

Current - Output / Channel:: 100 mA

Voltage - Supply Span (Min):: 1.8 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

LMV614MA/NOPB FAQ

1.How can I place an order for LMV614MA/NOPB through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV614MA/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LMV614MA/NOPB reliable?

The price and inventory of LMV614MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV614MA/NOPB is usually 5 days.

3.What payment methods are accepted for LMV614MA/NOPB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV614MA/NOPB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV614MA/NOPB?

LMV614MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV614MA/NOPB order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LMV614MA/NOPB?

For technical support, including LMV614MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV614MA/NOPB requirements.

6.How does Aetrix verify that LMV614MA/NOPB is sourced from the original manufacturer or authorized distributors?

All LMV614MA/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV614MA/NOPB meets industry standards.

7.What is the process for return or replacement of LMV614MA/NOPB?

All LMV614MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV614MA/NOPB, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LMV614MA/NOPB part is unused and in its original packaging.

Return procedure for LMV614MA/NOPB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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