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Texas Instruments LMV982IDGSRE4
- Part No.:
- LMV982IDGSRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV982IDGSRE4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,762
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Product details
Overview
LMV982IDGSRE4 from Texas Instruments is a dual, low-voltage, 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 quiescent current, and shutdown capability with 0.178-µA typical supply current in shutdown mode. Its ±200-mV beyond-rail input common-mode range and 80-mV-from-rail output swing into 600-Ω at 1.8 V enable high dynamic range in battery-powered sensor signal conditioning and portable audio front-ends.
For engineers reviewing the LMV982IDGSRE4 datasheet, LMV982IDGSRE4 pinout, LMV982IDGSRE4 application, or LMV982IDGSRE4 equivalent, key selection criteria include its 10-pin VSSOP (DGS) package, dual-channel rail-to-rail performance at sub-2-V operation, shutdown timing (8.4 µs turn-on at 5 V), and suitability for precision low-power analog sensing in space-constrained industrial and automotive modules.
Technical Context
The LMV982IDGSRE4 integrates two independent op-amps sharing a common shutdown control (SHDNA/SHDNB), each featuring Class AB output stage and internal biasing optimized for stable operation down to 1.8 V. Its input stage uses complementary NPN/PNP transistors enabling rail-to-rail common-mode input range extending 200 mV beyond supply rails.
Each amplifier supports full rail-to-rail output swing under light load (≤30 mV from rail at 2-kΩ), degrades to 80 mV from rail at 600-Ω, and maintains ≥72 dB large-signal voltage gain across temperature (−40°C to 125°C). Shutdown logic is active-low with defined turn-on (4.2 V min at 5 V supply) and turn-off (0.8 V max) thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - Enables direct use with single Li-ion or two-cell alkaline batteries without regulation. |
| Gain Bandwidth Product | 1.4 MHz - Supports stable closed-loop gain up to ~14 at 100-kHz signal bandwidth. |
| Quiescent Current per Channel | 100 µA - Allows continuous operation for >1 year on a 200-mAh coin cell in always-on sensor nodes. |
| Input Offset Voltage (max) | 7.5 mV - Limits DC error to ≤0.75% of full-scale 1-V output span in unity-gain buffer applications. |
| Rail-to-Rail Output Swing | 80 mV from rail into 600 Ω at 1.8 V - Preserves ≥95% of available dynamic range for ADC interfacing. |
| Shutdown Supply Current | 0.178 µA typical - Reduces system standby power by >99.8% versus active mode. |
| Input Common-Mode Range | VCC− − 0.2 V to VCC+ + 0.2 V - Accepts inputs 200 mV below ground or above VCC for flexible biasing. |
Pinout & Package
LMV982IDGSRE4 is housed in a 10-pin Very Small Outline Package (VSSOP), also designated MSOP or DGS package, measuring 3.0 mm × 3.0 mm × 0.95 mm with 0.5-mm lead pitch. This RoHS-compliant, green (Pb-free, no Sb/Br) package supports automated surface-mount assembly and offers θJA = 165°C/W thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Delivers rail-to-rail buffered signal; drives loads ≥600 Ω with <80-mV headroom at 1.8 V. |
| 2 (−INA) | Inverting input of Amp A | Accepts signals from VCC− − 0.2 V to VCC+ + 0.2 V; matched to +INA for <7.5-mV offset. |
| 3 (+INA) | Non-inverting input of Amp A | High-impedance node (65-nA max bias current); used for sensor interface or reference buffering. |
| 4 (VCC−/GND) | Negative supply / ground | Common return for both amplifiers and shutdown logic; must be low-impedance for noise immunity. |
| 5 (SHDNA) | Shutdown control for Amp A | Active-low; pulls low to disable Amp A output and reduce ICC to 0.178 µA; tied high for normal operation. |
| 6 (VCC+) | Positive supply | Accepts 1.8–5 V; supplies both amplifiers and internal bias circuitry; bypass capacitor required. |
| 7 (OUTB) | Amplifier B output | Independent rail-to-rail output; electrically isolated from OUTA with 123-dB amp-to-amp isolation. |
| 8 (−INB) | Inverting input of Amp B | Matched to +INB; enables dual-channel differential sensing or independent signal paths. |
| 9 (+INB) | Non-inverting input of Amp B | Same specs as +INA; allows simultaneous processing of two analog channels (e.g., stereo audio). |
| 10 (SHDNB) | Shutdown control for Amp B | Independent active-low control; permits selective disabling of Amp B while Amp A remains active. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range: input accepts signals from −0.2 V to +2.0 V; output swings to within 80 mV of either rail into 600 Ω. |
| Ultra-low quiescent current | 100 µA per channel at 1.8 V allows continuous operation in energy-harvesting or battery-backed systems with multi-year runtime. |
| Independent dual-channel shutdown | Separate SHDNA and SHDNB pins allow asymmetric power management-e.g., keep one amplifier active for wake-up detection while shutting down the other. |
| Extended temperature range | Specified from −40°C to +125°C ensures reliable operation in automotive engine compartments and industrial motor-control enclosures. |
| High CMRR and PSRR | ≥55 dB CMRR and ≥70 dB PSRR over full temperature range suppresses supply noise and common-mode interference in noisy environments. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Environment Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level outputs from thermistors, RTDs, or bridge-based pressure sensors in utility meters and PLC I/O modules. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, level-shifting, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 7.5-mV max VIO and 55-dB min CMRR ensure <0.5% measurement error across −40°C to 125°C ambient, eliminating need for external calibration. |
Use Scenario: Signal conditioning for CO₂, humidity, and cabin temperature sensors in HVAC control units. IC Role / Device Role / Timing Role: Dual op-amp performing sensor excitation (constant-current source via feedback) and differential amplification of ratiometric outputs. Use Value: Independent SHDNA/SHDNB pins enable periodic wake-up of one channel for sensor polling while keeping second channel in ultra-low-power shutdown (0.178 µA). |
| Portable Audio Line Driver | Battery Voltage Monitoring Circuit |
|
Use Scenario: Driving stereo headphone outputs or line-level signals in PDAs, Bluetooth speakers, and USB-C DACs powered from single Li-ion cells. IC Role / Device Role / Timing Role: Dual rail-to-rail output buffer delivering low-distortion (0.022% THD) audio with 20-mA sourcing/sinking capability at 2.7 V. Use Value: 80-mV output headroom at 1.8 V preserves >95% of dynamic range for 1-Vpp audio signals, minimizing clipping in battery-depleted operation. |
Use Scenario: Precision monitoring of Li-ion cell voltage during charge/discharge cycles in power banks and medical wearables. IC Role / Device Role / Timing Role: One amplifier configured as unity-gain buffer for high-impedance voltage divider; second as comparator with programmable hysteresis using internal reference. Use Value: Input common-mode range extending 200 mV below GND allows direct connection to battery cathode without level-shifting, simplifying layout and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher quiescent current (550 µA/channel), wider supply range (2.7–6 V), no shutdown function. | Lacks shutdown capability; unsuitable for intermittent-sensing architectures requiring µA-level standby. | Select TLV2462IDR only when higher drive strength (15-mA short-circuit) and wider supply margin outweigh power savings. |
| LPV521MG/NOPB | Lower quiescent current (320 nA/channel), lower GBW (6.5 kHz), no rail-to-rail output (100-mV min headroom). | Optimized for nanowatt sensor front-ends, not audio or fast-response monitoring; cannot drive 600-Ω loads. | Choose LPV521MG/NOPB for ultra-low-power wake-up comparators or microampere sensor biasing-not for signal amplification or driving. |
Compared with TLV2462IDR and LPV521MG/NOPB, LMV982IDGSRE4 uniquely balances 100-µA/channel operation, 1.4-MHz bandwidth, rail-to-rail I/O, and dual independent shutdown-making it optimal for dual-path, battery-sensitive systems needing both precision and responsiveness.
Availability
LMV982IDGSRE4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin monitoring systems, and portable audio line drivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV982IDGSRE4 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 over 90 years of innovation in precision analog ICs and power management solutions.
The LMV98x family was designed specifically for ultra-low-voltage, low-power signal conditioning in portable and energy-constrained applications-emphasizing rail-to-rail operation, shutdown efficiency, and robustness across −40°C to 125°C.
FAQ
What is the maximum operating temperature range for LMV982IDGSRE4?
The LMV982IDGSRE4 is fully specified from −40°C to +125°C ambient temperature. This extended range is validated across all key parameters-including input offset voltage, CMRR, and output swing-making it suitable for under-hood automotive and industrial motor-control applications where thermal stress is critical. Operation outside this range may cause parametric shift or reliability degradation.
Does LMV982IDGSRE4 support true rail-to-rail input at 1.8-V supply?
Yes, LMV982IDGSRE4 supports rail-to-rail input with common-mode voltage range extending 200 mV beyond both supply rails (VCC− − 0.2 V to VCC+ + 0.2 V) at 1.8 V. This allows direct interfacing with sensors whose outputs go slightly below ground or above VCC, eliminating level-shifting circuitry and reducing design complexity in battery-powered systems.
How does the shutdown feature work on LMV982IDGSRE4?
LMV982IDGSRE4 features two independent active-low shutdown pins: SHDNA (Pin 5) controls Amplifier A, and SHDNB (Pin 10) controls Amplifier B. Pulling either pin below 0.8 V (max) disables its respective amplifier output and reduces its supply current to 0.178 µA typical. Both amplifiers remain active when both pins are held ≥4.2 V (min) at 5 V supply.
Can LMV982IDGSRE4 drive a 600-Ω load at 1.8 V while maintaining rail-to-rail output?
At 1.8 V supply, LMV982IDGSRE4 delivers rail-to-rail output swing to within 80 mV of either rail when driving a 600-Ω load-verified across temperature and process corners. This provides ≥95% usable dynamic range for 1-Vpp signals, enabling direct interface with low-voltage ADCs and audio codecs without external level-shifting or gain adjustment.
What is the typical turn-on time from shutdown for LMV982IDGSRE4?
The typical turn-on time from shutdown for LMV982IDGSRE4 is 8.4 µs at 5 V supply, 12.5 µs at 2.7 V, and 19 µs at 1.8 V. This fast wake-up enables responsive sensor polling and burst-mode operation in energy-harvesting systems, where rapid transition from nanoampere standby to full analog functionality is essential for system-level power optimization.
LMV982IDGSRE4 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:
- 15 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
LMV982IDGSRE4 FAQ
1.How can I place an order for LMV982IDGSRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV982IDGSRE4 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 LMV982IDGSRE4 reliable?
The price and inventory of LMV982IDGSRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV982IDGSRE4 is usually 5 days.
3.What payment methods are accepted for LMV982IDGSRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV982IDGSRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV982IDGSRE4?
LMV982IDGSRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV982IDGSRE4 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 LMV982IDGSRE4?
For technical support, including LMV982IDGSRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV982IDGSRE4 requirements.
6.How does Aetrix verify that LMV982IDGSRE4 is sourced from the original manufacturer or authorized distributors?
All LMV982IDGSRE4 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 LMV982IDGSRE4 meets industry standards.
7.What is the process for return or replacement of LMV982IDGSRE4?
All LMV982IDGSRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV982IDGSRE4, 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 LMV982IDGSRE4 part is unused and in its original packaging.
Return procedure for LMV982IDGSRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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