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

Texas Instruments LMV982MMX

Name: LMV982MMX
Brand: Texas Instruments
SKU: LMV982MMX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV982MMX

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: LMV982MMX.pdf

Description:: IC OPAMP GP 2 CIRCUIT 10VSSOP

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Product details

Overview

LMV982MMX from Texas Instruments is a dual, rail-to-rail input/output operational amplifier optimized for 1.8-V to 5-V single-supply operation in space-constrained portable systems. It delivers 1.4-MHz gain bandwidth, 100-µA per-channel supply current, and output swing within 80 mV of rails under 600-Ω load - enabling precision signal conditioning in battery-powered wearables and fitness trackers.

For engineers reviewing the LMV982MMX datasheet, LMV982MMX pinout, LMV982MMX application, or LMV982MMX equivalent, key selection criteria include its independent channel shutdown capability, −40°C to 125°C operating range, rail-to-rail input extending 200 mV beyond supplies, and VSSOP-10 package compatibility with high-density PCB layouts.

Technical Context

The LMV982MMX implements a CMOS input stage with rail-to-rail input common-mode range (V− − 0.2 V to V+ + 0.2 V at 25°C) and complementary output stage enabling true rail-to-rail swing. Its 1.4-MHz unity-gain bandwidth and 0.35–0.42 V/µs slew rate support stable closed-loop operation driving 600-Ω loads and up to 1000-pF capacitive loads with minimal ringing.

Each channel features independent shutdown control (SHDN A/B), reducing quiescent current to ≤3.5 µA per channel in shutdown mode. The device maintains DC precision with max 5.5-mV input offset voltage and 75–86-dB CMRR across temperature, supporting low-frequency sensor amplification and supply monitoring applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.8 V to 5 V - supports direct interface with single-cell Li-ion (3.0–4.2 V), two-cell alkaline (2.4–3.2 V), and 1.8-V logic domains.
Gain Bandwidth Product	1.4 MHz - enables stable unity-gain buffer or gain-of-10 configurations up to ~140 kHz with phase margin ≥67°.
Supply Current (per channel)	103–210 µA - ensures <210 µA total active current for dual-channel operation at 1.8 V, critical for multi-day battery life.
Input Offset Voltage (max)	5.5 mV at 25°C - limits DC error to <0.5% of full-scale output in 1-V reference circuits without trimming.
Output Swing (600 Ω load)	Within 80 mV of rails at 1.8 V - delivers >95% usable dynamic range for 1.8-V ADC interfaces and analog front-ends.
Shutdown Current (per channel)	≤3.5 µA - reduces system standby power by >98% versus active mode, enabling rapid wake-up (<19 µs turn-on time).
Operating Temperature	−40°C to 125°C - qualified for automotive cabin modules, industrial sensors, and extended-life consumer devices.

Pinout & Package

LMV982MMX is packaged in a 10-pin VSSOP (DGS) with 3.0 mm × 3.0 mm body size and 0.5-mm lead pitch. The thermally enhanced package supports junction-to-ambient thermal resistance of 182.8°C/W, suitable for continuous operation at ambient temperatures up to 85°C with moderate power dissipation.

Pin/Terminal	Circuit Role	Design Meaning
+IN A (Pin 3)	Noninverting input, Channel A	Accepts signals from V− − 0.2 V to V+ + 0.2 V - enables biasing below ground or above V+ in single-supply sensor interfaces.
−IN A (Pin 2)	Inverting input, Channel A	Supports standard inverting amplifier, transimpedance, or differential configurations with matched input bias current (≤35 nA).
OUT A (Pin 1)	Output, Channel A	Rail-to-rail capable: sources/sinks ≥4 mA while maintaining linearity within 80 mV of V+ or V− at 1.8 V.
SHDN A (Pin 5)	Shutdown control, Channel A	Active-low: pulls output to high-impedance state when <0.55 V (1.8 V), <0.8 V (2.7 V), or <0.8 V (5 V).
V− (Pin 4)	Negative supply	Ground reference in single-supply operation; supports split-supply use down to −2.75 V (absolute max −0.3 V).
OUT B (Pin 9)	Output, Channel B	Independent output with identical AC/DC specs to OUT A - enables dual-path signal processing without cross-talk (>123 dB isolation).
−IN B (Pin 8)	Inverting input, Channel B	Electrically isolated from Channel A inputs - allows simultaneous measurement of two independent analog signals.
+IN B (Pin 7)	Noninverting input, Channel B	Matches +IN A performance: same input offset drift (5.5 µV/°C) and common-mode range for consistent dual-channel behavior.
SHDN B (Pin 6)	Shutdown control, Channel B	Independent of SHDN A - permits asymmetric power management (e.g., keep Channel A active while disabling Channel B).
V+ (Pin 10)	Positive supply	Accepts 1.8–5 V; internal regulation ensures stable biasing across supply range - no external decoupling required beyond 100 nF.

Key Features

Feature	Design Value
Independent per-channel shutdown	Enables selective power gating: one amplifier active for real-time monitoring while the other remains off to conserve energy.
Rail-to-rail input beyond supplies	Input common-mode extends 200 mV below V− and above V+, allowing direct connection to overvoltage-protected sensor outputs.
Low 100-µA/channel supply current	Permits integration into always-on subsystems (e.g., battery voltage monitors) without compromising host MCU sleep current budgets.
Stable 600-Ω load drive	Maintains 1.4-MHz GBW and ≥67° phase margin into 600-Ω resistive loads - eliminates need for external output buffers in DAC drivers.
High DC gain (≥75 dB)	Ensures <0.02% gain error in precision instrumentation amplifiers using 1000× closed-loop gain, even at 125°C.
Amp-to-amp isolation >123 dB	Prevents crosstalk between channels in dual-sensor systems (e.g., ECG lead I and II), preserving signal integrity in medical-grade designs.

Applications

Fitness Tracker Analog Front-End	Portable Audio Line Driver
Use Scenario: Amplifying low-level biopotential signals (ECG, PPG) from dry electrodes with minimal power consumption. IC Role / Device Role / Timing Role: Dual-channel RRIO op-amp providing programmable gain and DC-coupled signal conditioning before 12-bit SAR ADC sampling. Use Value: 100-µA/channel supply current extends battery life to >7 days; rail-to-rail input accepts electrode offsets up to ±200 mV without level-shifting circuitry.	Use Scenario: Driving stereo headphone outputs from low-voltage DACs in Bluetooth earbuds with 1.8-V supply. IC Role / Device Role / Timing Role: Dual-output line driver delivering 0.5-V RMS into 16-Ω loads with THD <0.023% at 1 kHz. Use Value: Output swing within 80 mV of 1.8-V rails maximizes SNR; independent shutdown disables unused channel during mono playback to save 100 µA.
Battery Voltage Monitor	Industrial Sensor Signal Conditioning
Use Scenario: Measuring cell voltage in 2S Li-ion packs (2.8–8.4 V) using resistor-divider scaling and precision buffering. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance divider from ADC input while rejecting supply ripple via 75-dB PSRR. Use Value: Input offset <5.5 mV ensures ±3 mV absolute accuracy on 4.2-V full-scale; shutdown mode draws <3.5 µA during periodic wake-ups.	Use Scenario: Conditioning 4–20 mA loop transmitter outputs in factory automation nodes operating from 3.3-V rails. IC Role / Device Role / Timing Role: Dual op-amp implementing voltage-to-current conversion and fault-detection comparator input buffering. Use Value: −40°C to 125°C rating supports deployment in motor control cabinets; 123-dB channel isolation prevents feedback coupling in multi-sensor nodes.

Fitness Tracker Analog Front-End

Portable Audio Line Driver

Use Scenario: Amplifying low-level biopotential signals (ECG, PPG) from dry electrodes with minimal power consumption.

IC Role / Device Role / Timing Role: Dual-channel RRIO op-amp providing programmable gain and DC-coupled signal conditioning before 12-bit SAR ADC sampling.

Use Value: 100-µA/channel supply current extends battery life to >7 days; rail-to-rail input accepts electrode offsets up to ±200 mV without level-shifting circuitry.

Use Scenario: Driving stereo headphone outputs from low-voltage DACs in Bluetooth earbuds with 1.8-V supply.

IC Role / Device Role / Timing Role: Dual-output line driver delivering 0.5-V RMS into 16-Ω loads with THD <0.023% at 1 kHz.

Use Value: Output swing within 80 mV of 1.8-V rails maximizes SNR; independent shutdown disables unused channel during mono playback to save 100 µA.

Battery Voltage Monitor

Industrial Sensor Signal Conditioning

Use Scenario: Measuring cell voltage in 2S Li-ion packs (2.8–8.4 V) using resistor-divider scaling and precision buffering.

IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance divider from ADC input while rejecting supply ripple via 75-dB PSRR.

Use Value: Input offset <5.5 mV ensures ±3 mV absolute accuracy on 4.2-V full-scale; shutdown mode draws <3.5 µA during periodic wake-ups.

Use Scenario: Conditioning 4–20 mA loop transmitter outputs in factory automation nodes operating from 3.3-V rails.

IC Role / Device Role / Timing Role: Dual op-amp implementing voltage-to-current conversion and fault-detection comparator input buffering.

Use Value: −40°C to 125°C rating supports deployment in motor control cabinets; 123-dB channel isolation prevents feedback coupling in multi-sensor nodes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-power RRIO operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP6022-E/SN	Higher supply current (120 µA/channel), lower GBW (1 MHz), no shutdown pins, SOIC-8 package (larger footprint).	Lacks independent shutdown and rail-to-rail input beyond supplies - unsuitable for ultra-low-power wake-up architectures or overvoltage-tolerant sensor interfaces.	Select when board space allows SOIC-8 and per-channel power control is unnecessary; verify input common-mode range meets sensor output limits.
TLV9002IDR	Lower supply current (60 µA/channel), same GBW (1 MHz), integrated EMI filtering, same VSSOP-10 package.	Reduced output drive strength (25 mA vs 45 mA) and higher input offset (1.6 mV typ) - trades precision and drive for lower quiescent power.	Prefer for always-on sensing nodes where <60 µA/channel is mandatory and 25-mA output suffices; confirm stability with target capacitive load.

Compared with MCP6022-E/SN and TLV9002IDR, LMV982MMX uniquely combines independent shutdown, 200-mV input overvoltage tolerance, and 45-mA output drive in VSSOP-10 - making it optimal for battery-constrained systems requiring flexible power sequencing and robust sensor interfacing.

Availability

LMV982MMX is available at Aetrix Electronics and suitable for wearable electronics, portable medical devices, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV982MMX 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 LMV982MMX belongs to TI's LMV98x-N family of small-footprint, low-voltage op-amps designed specifically for battery-powered portable equipment - emphasizing rail-to-rail operation, shutdown flexibility, and wide-temperature reliability.

FAQ

What is the maximum output current capability of LMV982MMX at 1.8 V supply?

The LMV982MMX can source up to 4 mA and sink up to 7 mA into a 600-Ω load at 1.8 V while maintaining rail-to-rail output swing within 80 mV of the supply rails. Short-circuit current is specified at 4–8 mA sourcing and 7–9 mA sinking at 25°C, with derating at elevated temperatures per the datasheet's IO specifications.

Does LMV982MMX support true single-supply operation with input signals below ground?

Yes. LMV982MMX features rail-to-rail input with common-mode voltage range extending 200 mV beyond both supply rails - meaning it accepts inputs from V− − 0.2 V to V+ + 0.2 V at 25°C. This allows direct interface with sensors whose outputs dip slightly below ground (e.g., piezoelectric or bridge-based transducers) without level-shifting circuitry.

How does the shutdown function operate on LMV982MMX?

LMV982MMX provides independent active-low shutdown pins (SHDN A and SHDN B) for each channel. When pulled below the turnoff threshold (0.55 V at 1.8 V, 0.8 V at 2.7 V/5 V), the corresponding amplifier enters shutdown mode, reducing supply current to ≤3.5 µA and placing its output in high-impedance state. Turnon time is 19 µs at 1.8 V.

Can LMV982MMX drive a 1000-pF capacitive load without oscillation?

Yes. LMV982MMX is characterized to drive up to 1000-pF capacitive loads with minimal ringing and stable phase margin ≥67° at 1.8 V. The datasheet confirms stable operation with CL = 0 pF, 300 pF, and 1000 pF in Figure 6 (Gain and Phase vs Frequency), making it suitable for driving ADC input capacitors or long PCB traces without external isolation resistors.

What is the typical input-referred voltage noise of LMV982MMX at 10 kHz?

The typical input-referred voltage noise of LMV982MMX is 60 nV/√Hz at 10 kHz and 1.8 V supply, as specified in Section 7.6 (Electrical Characteristics – AC, 1.8 V). This value remains consistent across supply voltages (57 nV/√Hz at 2.7 V; 50 nV/√Hz at 5 V), supporting low-noise amplification in precision analog front-ends.

LMV982MMX Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: LMV®

Package/Case:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Amplifier Type:: General Purpose

Number of Circuits:: 2

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 (x2 Channels)

Current - Output / Channel:: 100 mA

Voltage - Supply Span (Min):: 1.8 V

Voltage - Supply Span (Max):: 5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-VSSOP

LMV982MMX FAQ

1.How can I place an order for LMV982MMX through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV982MMX 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 LMV982MMX reliable?

The price and inventory of LMV982MMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV982MMX is usually 5 days.

3.What payment methods are accepted for LMV982MMX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV982MMX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV982MMX?

LMV982MMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV982MMX 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 LMV982MMX?

For technical support, including LMV982MMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV982MMX requirements.

6.How does Aetrix verify that LMV982MMX is sourced from the original manufacturer or authorized distributors?

All LMV982MMX 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 LMV982MMX meets industry standards.

7.What is the process for return or replacement of LMV982MMX?

All LMV982MMX units undergo pre-shipment inspection (PSI). If there is an issue with LMV982MMX, 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 LMV982MMX part is unused and in its original packaging.

Return procedure for LMV982MMX:

1.Submit a request within 90 days.

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

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