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

Texas Instruments LMV614MAX/NOPB

Name: LMV614MAX/NOPB
Brand: Texas Instruments
SKU: LMV614MAX/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV614MAX/NOPB

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: LMV614MAX/NOPB.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SOIC

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Product details

Overview

LMV614MAX/NOPB from Texas Instruments is a quad, rail-to-rail input/output, low-power operational amplifier optimized for 1.8-V single-supply operation in space-constrained portable electronics. It delivers 1.4-MHz gain bandwidth, 100-µA per-channel quiescent current, and output swing within 30 mV of rails under 2-kΩ load - enabling high-fidelity signal conditioning in battery-powered audio pre-amplifiers and supply current monitoring circuits.

For engineers reviewing the LMV614MAX/NOPB datasheet, LMV614MAX/NOPB pinout, LMV614MAX/NOPB application, or LMV614MAX/NOPB equivalent, key selection criteria include guaranteed 1.8-V operation, −40°C to +125°C temperature range, input common-mode voltage extending 200 mV beyond rails, and TSSOP-14 package compatibility with area-sensitive PCB layouts.

Technical Context

The LMV614MAX/NOPB integrates four independent amplifiers on a single die with matched AC/DC performance across channels. Its input stage supports rail-to-rail common-mode range (V_CM = V⁻ − 0.2 V to V⁺ + 0.2 V at 25°C), while the output stage drives 2-kΩ loads to within 30 mV of either supply rail at 1.8 V. Each channel draws only 100 µA typical supply current, enabling multi-amplifier configurations without thermal penalty.

It achieves 1.4-MHz unity-gain bandwidth and 0.35 V/µs slew rate at 1.8 V, with phase margin of 67° and gain margin of 7 dB - ensuring stable unity-gain follower and low-noise transimpedance configurations. Input-referred voltage noise is 60 nV/√Hz at 10 kHz, supporting precision DC-coupled sensing applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.8 V to 5.5 V - enables direct integration into Li-ion (3.7 V) and single-cell alkaline (1.5 V) systems with LDO regulation.
Gain Bandwidth Product	1.4 MHz - supports stable closed-loop gain up to 10× at 140 kHz for sensor signal amplification.
Quiescent Current per Channel	100 µA typical - allows four-channel operation at <400 µA total, critical for multi-sensor battery lifetime extension.
Input Offset Voltage	Max 4 mV (LMV611), 5.5 mV (LMV612/LMV614) - ensures ≤5.5 mV DC error in 12-bit ADC front-ends with 2.048 V reference.
Output Swing (2-kΩ load)	Within 30 mV of rails at 1.8 V - preserves >96% dynamic range in low-voltage audio and analog monitoring paths.
Input Common-Mode Range	V⁻ − 0.2 V to V⁺ + 0.2 V at 25°C - accommodates ground-referenced inputs and overvoltage-tolerant sensing in supply monitoring.
Operating Temperature	−40°C to +125°C - qualified for automotive cabin modules, industrial IoT edge nodes, and medical wearable housings.

Pinout & Package

LMV614MAX/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 JEDEC TSSOP layout with pin 1 marked by dot or bevel.

Pin/Terminal	Circuit Role	Design Meaning
1	OUT A	Amplifier A output - drives external load or feedback network; rail-to-rail capable.
2	IN A−	Inverting input of Amp A - connects to feedback resistor or inverting summing node.
3	IN A+	Noninverting input of Amp A - accepts sensor signal, reference voltage, or buffered input.
4	V+	Positive supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin.
5	IN B+	Noninverting input of Amp B - electrically isolated from other channels; supports independent biasing.
6	IN B−	Inverting input of Amp B - used for differential pair configuration or active filter topology.
7	OUT B	Amplifier B output - shares no internal coupling with OUT A/C/D; supports channel isolation.
8	OUT C	Amplifier C output - identical electrical specs to OUT A/B; enables 3-channel parallel processing.
9	IN C−	Inverting input of Amp C - supports cascaded gain stages or multi-pole filtering with OUT C.
10	IN C+	Noninverting input of Amp C - referenced to same V+ and V− as all channels; no cross-talk.
11	V−	Negative supply rail - tied to GND in single-supply mode; requires low-impedance return path.
12	IN D+	Noninverting input of Amp D - fully independent; suitable for reference buffer or comparator hysteresis.
13	IN D−	Inverting input of Amp D - configurable as precision current sense amplifier input with external R_sense.
14	OUT D	Amplifier D output - completes quad functionality; supports simultaneous 4-channel signal conditioning.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full-scale signal utilization in 1.8-V systems without level-shifting circuitry or dual supplies.
100-µA per-channel quiescent current	Reduces total system standby power to <400 µA for quad configuration - extends coin-cell life to >5 years.
1.4-MHz gain-bandwidth product	Supports closed-loop bandwidth >100 kHz at gain = 10, meeting audio preamp and fast sensor response requirements.
Input common-mode range extends 200 mV beyond rails	Allows direct connection to 0 V-referenced sensors (e.g., thermistors, current shunts) without external bias resistors.
Specified performance from 1.8 V to 5.5 V	Eliminates need for separate op-amps across product variants - simplifies BOM and design reuse.

Applications

Audio Pre-Amplifier	Supply Current Monitoring
Use Scenario: Amplifying microphone or line-level signals in Bluetooth headsets and hearing aids operating from 1.8-V LDO. IC Role / Device Role / Timing Role: Quad amplifier configures two channels as mic preamp (gain = 100), one as AGC control loop integrator, and one as headphone driver buffer. Use Value: 30-mV rail-to-rail swing preserves 96% of 1.8-V dynamic range; 100-µA/channel minimizes battery drain during voice standby.	Use Scenario: Real-time measurement of system supply current using a 10-mΩ shunt resistor in portable medical monitors. IC Role / Device Role / Timing Role: One channel buffers shunt voltage, second performs difference amplification against reference, third filters noise, fourth drives ADC input. Use Value: Input offset ≤5.5 mV limits current measurement error to <0.55 mA at 100-mA full scale; rail-to-rail input accepts 0–100 mV shunt drop directly.
Battery Voltage Monitoring	Portable Sensor Signal Conditioning
Use Scenario: Monitoring Li-ion cell voltage (2.5–4.2 V) and detecting end-of-charge in smart battery packs with integrated fuel gauging. IC Role / Device Role / Timing Role: Configured as precision voltage divider buffer and comparator hysteresis generator for charge termination logic. Use Value: Guaranteed 1.8-V operation allows direct interface to 1.8-V microcontroller ADC; 125°C rating supports battery pack thermal environments.	Use Scenario: Conditioning outputs from MEMS accelerometers and environmental sensors in handheld diagnostic tools. IC Role / Device Role / Timing Role: Four independent amplifiers condition X/Y/Z-axis accelerometer signals and temperature sensor output simultaneously. Use Value: 1.4-MHz GBW supports anti-aliasing filtering at >100 kHz; 60 nV/√Hz input noise maintains SNR >70 dB for 12-bit digitization.

Audio Pre-Amplifier

Supply Current Monitoring

Use Scenario: Amplifying microphone or line-level signals in Bluetooth headsets and hearing aids operating from 1.8-V LDO.

IC Role / Device Role / Timing Role: Quad amplifier configures two channels as mic preamp (gain = 100), one as AGC control loop integrator, and one as headphone driver buffer.

Use Value: 30-mV rail-to-rail swing preserves 96% of 1.8-V dynamic range; 100-µA/channel minimizes battery drain during voice standby.

Use Scenario: Real-time measurement of system supply current using a 10-mΩ shunt resistor in portable medical monitors.

IC Role / Device Role / Timing Role: One channel buffers shunt voltage, second performs difference amplification against reference, third filters noise, fourth drives ADC input.

Use Value: Input offset ≤5.5 mV limits current measurement error to <0.55 mA at 100-mA full scale; rail-to-rail input accepts 0–100 mV shunt drop directly.

Battery Voltage Monitoring

Portable Sensor Signal Conditioning

Use Scenario: Monitoring Li-ion cell voltage (2.5–4.2 V) and detecting end-of-charge in smart battery packs with integrated fuel gauging.

IC Role / Device Role / Timing Role: Configured as precision voltage divider buffer and comparator hysteresis generator for charge termination logic.

Use Value: Guaranteed 1.8-V operation allows direct interface to 1.8-V microcontroller ADC; 125°C rating supports battery pack thermal environments.

Use Scenario: Conditioning outputs from MEMS accelerometers and environmental sensors in handheld diagnostic tools.

IC Role / Device Role / Timing Role: Four independent amplifiers condition X/Y/Z-axis accelerometer signals and temperature sensor output simultaneously.

Use Value: 1.4-MHz GBW supports anti-aliasing filtering at >100 kHz; 60 nV/√Hz input noise maintains SNR >70 dB for 12-bit digitization.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad low-power op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2464IDR	Higher supply current (550 µA/channel), wider GBW (6.4 MHz), but only specified down to 2.7 V.	Not suitable for 1.8-V battery systems; better for higher-speed, higher-power industrial signal chains.	Select TLV2464IDR only when >2.7-V supply and >5-MHz bandwidth are required; LMV614MAX/NOPB remains optimal for sub-2-V operation.
MCP6004-E/SL	Lower quiescent current (1 µA/channel), but reduced GBW (1 MHz), higher V_OS (max 4.5 mV), and no 1.8-V guaranteed spec.	Targeted at ultra-low-power sensor nodes where speed is secondary; lacks rail-to-rail input at 1.8 V.	Choose MCP6004-E/SL for multi-year coin-cell applications with <100-kHz bandwidth needs; LMV614MAX/NOPB preferred when 1.4-MHz GBW and 1.8-V rail-to-rail I/O are mandatory.

Compared with TLV2464IDR and MCP6004-E/SL, LMV614MAX/NOPB uniquely balances 1.8-V operation, 1.4-MHz bandwidth, rail-to-rail I/O, and 100-µA quiescent current - making it the only quad op-amp qualified for precision, low-voltage, battery-operated signal conditioning across consumer, medical, and industrial edge devices.

Availability

LMV614MAX/NOPB is available at Aetrix Electronics and suitable for portable medical monitors, battery management systems, and audio accessories requiring stable component supply with long-term lifecycle assurance.

Supply support for LMV614MAX/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 amplifiers and low-power signal chain solutions.

The LMV61x family was designed specifically for low-voltage, general-purpose op-amp applications in portable and battery-powered equipment - emphasizing rail-to-rail operation, wide temperature range, and minimal quiescent power.

FAQ

What is the minimum supply voltage supported by LMV614MAX/NOPB?

LMV614MAX/NOPB is fully specified and guaranteed to operate down to 1.8 V, with all key parameters - including gain-bandwidth product, input offset voltage, and output swing - validated at this voltage. It also supports operation up to 5.5 V, making it compatible with both single-cell Li-ion and regulated 3.3-V/5-V systems. The device functions reliably across this full range without derating.

Does LMV614MAX/NOPB support rail-to-rail input and output simultaneously?

Yes, LMV614MAX/NOPB supports true rail-to-rail input common-mode range (V_CM = V⁻ − 0.2 V to V⁺ + 0.2 V at 25°C) and rail-to-rail output swing (within 30 mV of either rail with 2-kΩ load at 1.8 V). This allows direct interfacing with ground-referenced sensors and full utilization of the supply voltage in single-supply configurations - a key advantage over many competing quad op-amps.

What is the thermal performance of LMV614MAX/NOPB in its TSSOP-14 package?

LMV614MAX/NOPB in the PW (TSSOP-14) package has a junction-to-ambient thermal resistance (R_θJA) of 94.4°C/W and junction-to-board (R_θJB) of 48.9°C/W, per TI's published thermal metrics. With four channels drawing 100 µA each at 1.8 V, total dissipation is ~0.72 mW - resulting in negligible temperature rise (<0.1°C) under typical PCB conditions, eliminating thermal derating concerns.

Can LMV614MAX/NOPB drive a 600-Ω load effectively at 1.8 V?

Yes, LMV614MAX/NOPB delivers rail-to-rail output swing within 80 mV of either supply rail when driving a 600-Ω load at 1.8 V - preserving >91% of full-scale dynamic range. Its output short-circuit current is rated at 8 mA (sourcing) and 9 mA (sinking) at 1.8 V, confirming robust drive capability for moderate-impedance loads like audio codecs and ADC drivers.

Is LMV614MAX/NOPB suitable for automotive cabin applications?

Yes, LMV614MAX/NOPB is qualified for operation from −40°C to +125°C and features robust ESD protection (±2000 V HBM), making it suitable for non-safety-critical automotive cabin modules such as infotainment interfaces, seat position sensors, and HVAC control panels. It is not AEC-Q200 qualified, so it should not be used in engine bay or safety-critical ADAS subsystems.

LMV614MAX/NOPB Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: LMV®

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

Packaging:: Tape & Reel (TR)

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

LMV614MAX/NOPB FAQ

1.How can I place an order for LMV614MAX/NOPB through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV614MAX/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 LMV614MAX/NOPB reliable?

The price and inventory of LMV614MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV614MAX/NOPB is usually 5 days.

3.What payment methods are accepted for LMV614MAX/NOPB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV614MAX/NOPB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV614MAX/NOPB?

LMV614MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV614MAX/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 LMV614MAX/NOPB?

For technical support, including LMV614MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV614MAX/NOPB requirements.

6.How does Aetrix verify that LMV614MAX/NOPB is sourced from the original manufacturer or authorized distributors?

All LMV614MAX/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 LMV614MAX/NOPB meets industry standards.

7.What is the process for return or replacement of LMV614MAX/NOPB?

All LMV614MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV614MAX/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 LMV614MAX/NOPB part is unused and in its original packaging.

Return procedure for LMV614MAX/NOPB:

1.Submit a request within 90 days.

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

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