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Texas Instruments LMV982MM
- Part No.:
- LMV982MM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV982MM.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,819
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Product details
Overview
LMV982MM from Texas Instruments is a dual, rail-to-rail input/output operational amplifier optimized for 1.8-V to 5-V single-supply operation, delivering 1.4-MHz gain bandwidth, 100-µA per-channel supply current, and output swing within 80 mV of rails into 600-Ω load - enabling precision signal conditioning in battery-powered wearables and portable audio systems.
For engineers reviewing the LMV982MM datasheet, LMV982MM pinout, LMV982MM application, or LMV982MM equivalent, this page provides verified package mapping (VSSOP-10), confirmed dual-channel shutdown control, rail-to-rail common-mode range extending 200 mV beyond supplies, and real-world performance data across 1.8 V/2.7 V/5 V operating points.
Technical Context
The LMV982MM integrates two independent op-amp channels with separate shutdown inputs (SHDN A and SHDN B), allowing selective channel disablement without affecting the other. Each channel features rail-to-rail input stage with ±200-mV beyond-rail common-mode capability and rail-to-rail output stage capable of sourcing/sinking ≥4 mA into 600-Ω loads at 1.8 V.
Its 1.4-MHz unity-gain bandwidth and 0.35–0.42 V/µs slew rate are maintained across 1.8–5 V supply range, while amp-to-amp isolation exceeds 123 dB - critical for dual-channel sensor signal chains where crosstalk must be minimized in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - supports direct interface with Li-ion (3.0–4.2 V), two-cell alkaline (2.4–3.2 V), and single-cell NiMH (1.2 V) via LDO or direct battery connection. |
| Gain Bandwidth Product | 1.4 MHz (typ. at 1.8 V) - enables stable unity-gain buffers and low-frequency active filters up to ~100 kHz with <1% gain error. |
| Input Offset Voltage | ≤5.5 mV (max, 25°C), ≤7.5 mV (max, –40°C to 125°C) - ensures ≤0.5% error in 12-bit ADC front-end applications with 1-V full-scale input. |
| Supply Current per Channel | 103–210 µA (1.8–5 V, 25°C); ≤3.5 µA in shutdown - allows continuous monitoring circuits to operate >1 year on a 200-mAh coin cell. |
| Output Swing (600 Ω) | Within 80 mV of rails (1.8 V), 110 mV (2.7 V), 160 mV (5 V) - preserves dynamic range in low-voltage analog-to-digital conversion paths. |
| Common-Mode Input Range | V− −0.2 V to V+ +0.2 V (25°C) - permits sensing below ground or above supply in single-supply current-sense and battery-monitoring topologies. |
| Turnon Time from Shutdown | 19 µs (1.8 V), 12.5 µs (2.7 V), 8.4 µs (5 V) - enables fast wake-up in duty-cycled sensor nodes without compromising power savings. |
Pinout & Package
LMV982MM is packaged in a 10-pin Very Small Outline Package (VSSOP) with 0.5-mm pitch and 3.0 mm × 3.0 mm body size - compatible with standard SMT reflow profiles and suitable for high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | Accepts signals down to V− −0.2 V; enables level-shifting and single-supply transimpedance amplification. |
| –IN A (Pin 2) | Inverting input, Channel A | Used for closed-loop configurations (e.g., inverting amplifier, current-sense differential pair). |
| OUT A (Pin 1) | Output, Channel A | Rail-to-rail swing supports full utilization of 1.8-V ADC reference; drives 600-Ω loads directly. |
| SHDN A (Pin 5) | Shutdown control, Channel A | Active-low logic input; pulls output to high-impedance state when <0.55 V (1.8 V supply) or <0.8 V (2.7/5 V). |
| V− (Pin 4) | Negative supply / ground reference | Must be connected to system ground or negative rail; serves as common return for both channels and shutdown logic. |
| +IN B (Pin 7) | Noninverting input, Channel B | Independent of Channel A; enables dual-path signal processing (e.g., stereo audio, dual-sensor readout). |
| –IN B (Pin 8) | Inverting input, Channel B | Supports independent feedback networks; no internal coupling between A and B input stages. |
| OUT B (Pin 9) | Output, Channel B | Electrically isolated from OUT A; >123 dB inter-channel isolation prevents crosstalk in sensitive analog routing. |
| SHDN B (Pin 6) | Shutdown control, Channel B | Independent enable/disable of Channel B; allows asymmetric power management (e.g., keep A active, sleep B). |
| V+ (Pin 10) | Positive supply | Accepts 1.8–5 V; supplies both op-amp cores and shutdown logic; decoupling capacitor required at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with extended CMVR | Input common-mode range extends 200 mV beyond supplies - enables accurate measurement of signals near or slightly outside V+ and V− in single-supply systems. |
| Independent per-channel shutdown | Dual SHDN pins allow granular power control - e.g., keep one channel active for wake-on-event while sleeping the other to reduce quiescent current by >99%. |
| Low-noise, low-distortion operation | 60 nV/√Hz input voltage noise (10 kHz) and 0.022% THD+N (1 kHz, 600-Ω) support high-fidelity audio pre-amplification and precision sensor signal conditioning. |
| Stable driving of capacitive loads | Capable of driving up to 1000 pF with minimal ringing - eliminates need for external isolation resistors in ADC driver or filter applications. |
| High DC open-loop gain | ≥75 dB large-signal voltage gain into 600-Ω load - ensures <0.1% linearity error in 8-bit to 10-bit precision applications at room temperature. |
Applications
| Battery Voltage Monitoring | Wearable Heart Rate Sensor Front-End |
|---|---|
|
Use Scenario: Real-time tracking of Li-ion cell voltage during charge/discharge cycles in smart bands and hearables. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter: Channel A conditions battery sense resistor divider output; Channel B monitors protection circuit status signal. Use Value: Extended common-mode range allows direct measurement of voltages from 0 V to 4.5 V using only 3.3-V MCU ADC; shutdown capability reduces system standby current by 200 µA. |
Use Scenario: Amplifying weak photodiode current from optical PPG sensor in fitness trackers. IC Role / Device Role / Timing Role: Transimpedance amplifier (Channel A) + reference buffer (Channel B) for correlated double sampling architecture. Use Value: 100-µA supply current per channel enables continuous 25-Hz sampling for >7 days on 100-mAh battery; rail-to-rail output maximizes ADC dynamic range. |
| Portable Audio Line Driver | Industrial Two-Wire Current Loop Receiver |
|
Use Scenario: Driving stereo headphone outputs from low-voltage codec in Bluetooth earbuds. IC Role / Device Role / Timing Role: Dual unity-gain buffer: Channel A drives left channel; Channel B drives right channel - each with independent shutdown for mono playback mode. Use Value: 80-mV rail-to-rail swing at 1.8 V preserves >90% of 1.8-Vpp full-scale audio range; 0.022% THD+N meets Class D amplifier input requirements. |
Use Scenario: Converting 4–20 mA loop current to ground-referenced voltage in battery-powered field sensors. IC Role / Device Role / Timing Role: Precision current-to-voltage converter (Channel A) with buffered reference (Channel B) for ratiometric ADC scaling. Use Value: Input offset ≤5.5 mV limits current measurement error to <0.3% FS; extended CMVR accommodates loop compliance voltage up to 30 V with external level-shift network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6002-E/SN | No shutdown pins; 1-µA max supply current per channel; 1-MHz GBW; 4.5-mV max VOS at 25°C. | Lacks independent channel shutdown; lower drive strength (2.5 mA) limits 600-Ω load compatibility. | Select when ultra-low quiescent current dominates over shutdown flexibility and rail-to-rail output swing. |
| TSV912IDT | Single-supply only (2.7–5.5 V); 8-MHz GBW; 1.1-mA supply current per channel; no shutdown function. | Higher speed and power consumption; incompatible with 1.8-V systems; no power-gating capability. | Select when bandwidth >5 MHz is required and 1.8-V operation is not needed - e.g., industrial 3.3-V sensor hubs. |
Compared with MCP6002-E/SN and TSV912IDT, LMV982MM uniquely delivers 1.8-V operability, dual independent shutdown, and rail-to-rail output swing within 80 mV of rails - making it the only option among the three suitable for long-life, multi-voltage, power-gated wearable designs.
Availability
LMV982MM is available at Aetrix Electronics and suitable for battery monitoring, wearable biosensing, portable audio line driving, industrial 4–20 mA receivers, and low-power sensor interface applications requiring stable component supply across automotive-grade temperature ranges (–40°C to 125°C).
Supply support for LMV982MM 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, embedded processing, and connectivity technologies - with over 50 years of innovation in precision analog ICs and low-power signal chain solutions.
The LMV982MM belongs to TI's LMV98x-N family of small, low-power RRIO op-amps designed specifically for space-constrained, battery-operated systems where rail-to-rail performance at 1.8 V and intelligent power management are essential.
FAQ
What is the minimum supply voltage for reliable operation of the LMV982MM?
The LMV982MM is fully specified and guaranteed to operate from 1.8 V to 5 V. At 1.8 V, it maintains 1.4-MHz gain bandwidth, rail-to-rail input/output swing, and 100-µA per-channel supply current. Operation below 1.8 V is not characterized and may result in degraded parameters including reduced output swing and increased offset voltage. The LMV982MM datasheet explicitly confirms 1.8-V operation across all key AC and DC specifications.
Does the LMV982MM support true rail-to-rail input common-mode voltage?
Yes - the LMV982MM input common-mode voltage range extends from V− −0.2 V to V+ +0.2 V at 25°C, exceeding the supply rails by 200 mV on both sides. This allows the device to accurately amplify signals that go slightly below ground or above V+ in single-supply configurations, such as in current-sense shunt monitoring or battery terminal voltage measurement with headroom margin. The specification is validated across temperature and supply voltage.
How does shutdown behavior differ between the two channels of the LMV982MM?
Each channel of the LMV982MM has its own dedicated shutdown pin (SHDN A for Channel A, SHDN B for Channel B), enabling independent control. When either SHDN pin is pulled low (≤0.55 V at 1.8 V), the corresponding output enters high-impedance state and supply current drops to ≤3.5 µA for that channel. The other channel remains fully operational - a feature not found in most dual op-amps and critical for asymmetric power management in portable systems.
Can the LMV982MM drive a 1000-pF capacitive load without oscillation?
Yes - the LMV982MM is characterized to drive up to 1000-pF capacitive loads with minimal ringing and stable phase margin (≥67° at 1.8 V). This capability is confirmed in the datasheet's "Typical Characteristics" section and eliminates the need for external series resistors in ADC driver or filter applications. Performance holds across supply voltages (1.8 V, 2.7 V, 5 V) and temperature (–40°C to 125°C).
What is the maximum output current capability of the LMV982MM at 1.8 V?
At 1.8 V supply, the LMV982MM can source up to 4 mA and sink up to 7 mA into a 600-Ω load while maintaining rail-to-rail output swing within 105 mV of the rails. Short-circuit current is limited to 4–9 mA depending on output polarity and temperature. These values are measured and guaranteed per channel in the Electrical Characteristics tables for 1.8-V operation and support direct interfacing with low-power ADCs and comparators.
LMV982MM 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
LMV982MM FAQ
1.How can I place an order for LMV982MM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV982MM 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 LMV982MM reliable?
The price and inventory of LMV982MM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV982MM is usually 5 days.
3.What payment methods are accepted for LMV982MM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV982MM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV982MM?
LMV982MM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV982MM 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 LMV982MM?
For technical support, including LMV982MM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV982MM requirements.
6.How does Aetrix verify that LMV982MM is sourced from the original manufacturer or authorized distributors?
All LMV982MM 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 LMV982MM meets industry standards.
7.What is the process for return or replacement of LMV982MM?
All LMV982MM units undergo pre-shipment inspection (PSI). If there is an issue with LMV982MM, 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 LMV982MM part is unused and in its original packaging.
Return procedure for LMV982MM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV982MM Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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