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Texas Instruments LMV982MMX/NOPB
- Part No.:
- LMV982MMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV982MMX/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,995
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Product details
Overview
LMV982MMX/NOPB from Texas Instruments is a dual, rail-to-rail input/output operational amplifier optimized for 1.8-V to 5-V single-supply operation. 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 space-constrained, battery-powered systems such as wearable health monitors and portable audio front-ends.
For engineers reviewing the LMV982MMX/NOPB datasheet, LMV982MMX/NOPB pinout, LMV982MMX/NOPB application, or LMV982MMX/NOPB equivalent, key selection considerations include its independent shutdown control per channel, −40°C to 125°C operating range, rail-to-rail input beyond supplies (±200 mV), and verified performance driving 600-Ω loads with ≤0.023% THD at 1 kHz.
Technical Context
The LMV982MMX/NOPB implements a CMOS input stage with rail-to-rail input common-mode range extending 200 mV beyond V− and V+, supporting true single-supply operation down to 1.8 V. Its output stage uses complementary push-pull architecture to achieve 80-mV rail proximity under 600-Ω load at 1.8 V while maintaining stability with up to 1000-pF capacitive loads.
Each channel features independent digital shutdown control (SHDN A/B), reducing quiescent current to ≤3.5 µA per channel in shutdown mode. The device exhibits 123-dB amp-to-amp isolation and 70° phase margin at 2.7 V, confirming robust channel separation and unity-gain stability across supply voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - enables direct interface with Li-ion (3.0–4.2 V), two-cell alkaline (2.4–3.2 V), and low-voltage logic domains without level-shifting. |
| Gain Bandwidth Product | 1.4 MHz - supports stable closed-loop gain ≥10 at 100-kHz signals in sensor amplification and anti-aliasing filter applications. |
| Input Offset Voltage (max) | 5.5 mV at 25°C - ensures ≤5.5-mV DC error in 12-bit ADC front-ends with gain ≤100 without trimming. |
| Output Swing (600 Ω load) | Within 80 mV of rails at 1.8 V - preserves full dynamic range in 1.8-V microcontroller ADCs with 0–1.8 V input range. |
| Supply Current (per channel) | 103–210 µA - allows continuous operation for >1 year on a 200-mAh coin cell in always-on wearable sensing nodes. |
| Input Common-Mode Range | V− − 0.2 V to V+ + 0.2 V - permits direct sensing of signals below ground or above supply (e.g., current-sense shunt monitoring). |
| Shutdown Current (per channel) | ≤3.5 µA - reduces system standby power by >99% versus active mode, critical for intermittent-sampling architectures. |
Pinout & Package
VSSOP-10 package (3.0 mm × 3.0 mm body, 0.5-mm pitch) with exposed thermal pad; RoHS-compliant, lead-free, green molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | High-impedance (15 nA bias current) node for precision voltage sensing; accepts signals from V− − 0.2 V to V+ + 0.2 V. |
| −IN A (Pin 2) | Inverting input, Channel A | Configures standard op-amp topologies (inverting/noninverting amps, filters); matched to +IN A for CMRR ≥55 dB. |
| OUT A (Pin 1) | Output, Channel A | Capable of sourcing/sinking ≥20 mA (2.7 V, 25°C); drives 600-Ω loads to within 80 mV of rails with <0.023% THD. |
| SHDN A (Pin 5) | Shutdown control, Channel A | Active-low logic input; pulls channel A into high-Z output and sub-µA quiescent state when <0.8 V (2.7 V supply). |
| V− (Pin 4) | Negative supply | Ground reference for single-supply operation; supports split-supply use down to −2.75 V (absolute max −0.3 V). |
| SHDN B (Pin 6) | Shutdown control, Channel B | Independent enable/disable for Channel B; allows asymmetric power management (e.g., keep A active, sleep B). |
| −IN B (Pin 8) | Inverting input, Channel B | Electrically isolated from Channel A (123-dB isolation); enables dual-path signal processing without crosstalk. |
| +IN B (Pin 7) | Noninverting input, Channel B | Matches +IN A specs; supports differential pair configurations or independent sensor channels. |
| OUT B (Pin 9) | Output, Channel B | Functionally identical to OUT A; supports simultaneous dual-output operation (e.g., stereo audio, dual-axis sensor conditioning). |
| V+ (Pin 10) | Positive supply | Accepts 1.8–5 V; internal regulation ensures consistent GBW and slew rate across full voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supplies | ±200 mV input common-mode range enables direct measurement of signals outside supply rails (e.g., shunt-based current sensing). |
| Independent per-channel shutdown | Two dedicated SHDN pins allow selective channel disablement - critical for dynamic power scaling in multi-sensor IoT nodes. |
| Stable with capacitive loads | Drives up to 1000-pF loads without oscillation, eliminating need for isolation resistors in LCD bias or DAC output buffering. |
| Low THD + noise | 0.022% THD at 1 kHz + 50 nV/√Hz input noise (5 V) supports high-fidelity audio pre-amplification and precision instrumentation. |
| Extended temperature range | −40°C to 125°C operation validated per JEDEC JESD22-A104 - suitable for automotive cabin modules and industrial motor controllers. |
Applications
| Battery-Powered Wearables | Portable Audio Front-End |
|---|---|
Use Scenario: Signal conditioning for optical heart-rate sensors in fitness trackers using 1.8-V MCU and photodiode transimpedance amplifiers. IC Role / Device Role / Timing Role: Dual-channel op-amp providing TIA gain (Channel A) and reference buffer (Channel B) with independent shutdown during motion artifact rejection. Use Value: 100-µA per-channel supply current extends battery life; rail-to-rail I/O matches 1.8-V ADC full-scale range without level shifters. |
Use Scenario: Low-noise pre-amplification and headphone driver buffering in Bluetooth earbuds with 3.3-V supply and 16-Ω loads. IC Role / Device Role / Timing Role: Dual op-amp configured as microphone preamp (Channel A) and line-level headphone buffer (Channel B) with shared V+. Use Value: 50-nV/√Hz input noise and 0.022% THD preserve audio fidelity; 20-mA output drive supports direct 16-Ω load interface. |
| Industrial Sensor Signal Chain | Automotive Cabin Monitoring |
Use Scenario: Amplifying millivolt-level thermocouple and RTD outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision dual op-amp implementing cold-junction compensation (Channel A) and RTD bridge excitation (Channel B). Use Value: 5.5-mV max VOS and 5.5-µV/°C TCVOS minimize temperature-induced drift; 125°C rating supports enclosure mounting near heat sources. |
Use Scenario: Occupancy detection via infrared pyroelectric sensor (PIR) signal amplification and window-defogger feedback control in vehicle climate systems. IC Role / Device Role / Timing Role: Dual op-amp used for PIR signal amplification (Channel A) and PWM-controlled heater current sensing (Channel B). Use Value: Independent shutdown allows PIR path to remain active while heater path sleeps; ±200-mV input range accommodates shunt-based current sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-E/SN | Higher supply current (120 µA/ch), no shutdown, 2.7–5.5 V only, 10-µV/°C TCVOS | Lacks independent shutdown; unsuitable for ultra-low-power intermittent sampling | Select when shutdown is unnecessary and tighter offset drift is required over temperature. |
| TLV9062IDGKR | Lower VOS (0.3 mV typ), higher GBW (10 MHz), 50-µA/ch supply current, same 1.8–5.5 V range | Higher bandwidth and lower noise, but reduced output drive (10 mA) limits 600-Ω load capability | Select when precision DC accuracy and speed outweigh rail-to-rail output swing requirements. |
Compared with MCP6022-E/SN and TLV9062IDGKR, the LMV982MMX/NOPB uniquely balances ultra-low quiescent current, per-channel shutdown, rail-to-rail I/O including beyond-rail input, and verified 600-Ω load drive - making it optimal for battery-constrained dual-path signal chains where power gating and supply flexibility are mandatory.
Availability
LMV982MMX/NOPB is available at Aetrix Electronics and suitable for battery-powered wearables, portable audio systems, and industrial sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV982MMX/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 conditioning solutions.
The LMV982MMX/NOPB belongs to TI's LMV98x-N family of small-footprint, low-voltage op-amps designed specifically for energy-efficient portable electronics - emphasizing rail-to-rail operation, shutdown control, and robust performance at 1.8 V.
FAQ
What is the maximum capacitive load the LMV982MMX/NOPB can drive without instability?
The LMV982MMX/NOPB is characterized to drive up to 1000 pF with minimal ringing and stable phase margin (≥67°). This eliminates external isolation resistors in applications like DAC output buffering or LCD bias generation, simplifying layout and reducing component count while maintaining signal integrity.
Does the LMV982MMX/NOPB support true single-supply operation with inputs below ground?
Yes. The LMV982MMX/NOPB features rail-to-rail input with common-mode range extending 200 mV beyond both supply rails (V− − 0.2 V to V+ + 0.2 V). This enables direct interfacing with sub-ground signals - such as those from current-sense shunts - without external level-shifting circuitry.
How does the shutdown functionality work on the LMV982MMX/NOPB?
The LMV982MMX/NOPB provides two independent shutdown pins (SHDN A and SHDN B). Driving either pin low disables its respective channel, reducing supply current to ≤3.5 µA and placing the output in high-impedance state. Turnon time from shutdown is 8.4 µs at 5 V, enabling rapid wake-up in duty-cycled systems.
What is the guaranteed output voltage swing for LMV982MMX/NOPB at 1.8 V supply?
At 1.8 V supply and 25°C, the LMV982MMX/NOPB guarantees output swing within 105 mV of each rail under 600-Ω load (i.e., 0.077 V to 1.72 V). This ensures full utilization of 1.8-V ADC input ranges and maintains signal fidelity in ultra-low-voltage portable systems.
Is the LMV982MMX/NOPB qualified for automotive applications?
The LMV982MMX/NOPB operates across −40°C to +125°C and meets JEDEC JESD22-A104 temperature cycling requirements. While not AEC-Q200 qualified, its extended temperature rating and robust parametric performance make it suitable for non-safety-critical automotive cabin applications such as occupancy sensing and climate control feedback loops.
LMV982MMX/NOPB 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:
- Active
- 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/NOPB FAQ
1.How can I place an order for LMV982MMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV982MMX/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 LMV982MMX/NOPB reliable?
The price and inventory of LMV982MMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV982MMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV982MMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV982MMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV982MMX/NOPB?
LMV982MMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV982MMX/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 LMV982MMX/NOPB?
For technical support, including LMV982MMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV982MMX/NOPB requirements.
6.How does Aetrix verify that LMV982MMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV982MMX/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 LMV982MMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV982MMX/NOPB?
All LMV982MMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV982MMX/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 LMV982MMX/NOPB part is unused and in its original packaging.
Return procedure for LMV982MMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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