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Texas Instruments LMV982IDGSR
- Part No.:
- LMV982IDGSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV982IDGSR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,529
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Product details
Overview
LMV982IDGSR 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 LMV982IDGSR datasheet, LMV982IDGSR pinout, LMV982IDGSR application, or LMV982IDGSR equivalent, key selection criteria include its dual-channel architecture, MSOP-10 (DGS) package, rail-to-rail I/O performance at ultra-low supply voltage, shutdown control timing (8.4 µs turn-on at 5 V), and guaranteed operation from −40°C to +125°C for industrial and automotive sensing systems.
Technical Context
The LMV982IDGSR employs a Class AB output stage with internal biasing optimized for stable rail-to-rail output swing across 1.8–5-V supplies. Its input stage extends 200 mV beyond both rails using complementary NPN/PNP differential pairs, enabling true single-supply operation without external level-shifting.
Each channel integrates independent shutdown control (SHDNA/SHDNB), allowing selective power-down of one amplifier while the other remains active. The device achieves 67° phase margin and 7 dB gain margin at unity gain with 600-Ω load and 1000-pF capacitive load, supporting robust closed-loop stability in precision buffer and filter applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - supports direct connection to single-cell Li-ion (2.7–4.2 V) or two-cell alkaline/NiMH (2.4–3.2 V) batteries without regulation. |
| Gain Bandwidth Product | 1.4 MHz - enables stable unity-gain buffering of audio-band signals (≤20 kHz) with ≥40 dB open-loop gain margin. |
| Quiescent Current per Channel | 100 µA at 1.8 V - allows continuous operation for >1 year on a 200-mAh coin cell in always-on sensor monitoring. |
| Input Offset Voltage (max) | 7.5 mV over full temperature range - ensures ≤0.75% error in 1-V full-scale 12-bit ADC front-end without trimming. |
| Rail-to-Rail Output Swing | 80 mV from rail into 600 Ω at 1.8 V - preserves >95% of available signal headroom for low-voltage analog-to-digital conversion. |
| Shutdown Supply Current | 0.178 µA typical at 25°C - reduces system standby power to nanoampere levels when amplifiers are inactive. |
| Operating Temperature Range | −40°C to +125°C - qualified for under-hood automotive sensors and industrial metering without derating. |
Pinout & Package
LMV982IDGSR is housed in a 10-pin MSOP (DGS) package with 0.5-mm pitch, 3.0-mm × 3.0-mm footprint, and exposed thermal pad for enhanced power dissipation. The package supports automated optical inspection and reflow soldering per JEDEC J-STD-020 Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Delivers rail-to-rail buffered signal; drives 600-Ω loads with ≤80-mV headroom loss at 1.8 V. |
| 2 (−INA) | Inverting input A | Accepts signals from −0.2 V to VCC+ + 0.2 V; enables true single-supply transimpedance configurations. |
| 3 (+INA) | Non-inverting input A | Same common-mode range as −INA; supports high-side current sensing with VCC-referenced shunt. |
| 4 (VCC−/GND) | Negative supply / ground | Single-supply reference node; must be low-impedance to minimize PSRR degradation at high frequencies. |
| 5 (SHDNA) | Shutdown control A | Active-low logic input; pulls below 0.55 V to disable amplifier A and reduce ICC to sub-µA level. |
| 6 (VCC+) | Positive supply | Accepts 1.8–5 V; internal regulation ensures consistent biasing across full voltage range. |
| 7 (OUTB) | Amplifier B output | Independent output identical in performance to OUTA; enables dual-path signal processing in same footprint. |
| 8 (−INB) | Inverting input B | Electrically isolated from −INA; supports differential pair or independent channel use without crosstalk. |
| 9 (+INB) | Non-inverting input B | Matches +INA specs; allows simultaneous dual-sensor conditioning (e.g., temperature + humidity). |
| 10 (SHDNB) | Shutdown control B | Independent enable/disable of amplifier B; enables asymmetric power management in multi-stage designs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 200 mV beyond supply rails - eliminates need for external level shifters in single-supply data acquisition. |
| Ultra-low quiescent current | 100 µA per channel at 1.8 V - enables always-on operation in energy-harvesting and battery-backed IoT nodes. |
| Independent dual-channel shutdown | Dedicated SHDNA/SHDNB pins - permits dynamic power scaling in multi-function analog subsystems without software overhead. |
| High amp-to-amp isolation | 123 dB at 1 kHz - prevents signal coupling between channels in dual-filter or stereo audio paths. |
| Guaranteed operation to +125°C | Specified performance over −40°C to +125°C - supports deployment in engine control units and smart grid meters. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Environment Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level outputs from thermistors, RTDs, and bridge-based pressure sensors in utility meters and PLC analog input modules. IC Role / Device Role / Timing Role: Dual-channel precision buffer and programmable gain stage with rail-to-rail I/O to maximize ADC utilization at 1.8–3.3 V. Use Value: 7.5-mV max VIO and 1.4-MHz GBW ensure <0.5% gain error and 20-kHz signal fidelity in 16-bit metrology systems. |
Use Scenario: Signal conditioning for CO₂, humidity, and cabin temperature sensors in HVAC control units. IC Role / Device Role / Timing Role: Dual op-amp front-end providing simultaneous sensor excitation and differential amplification with shutdown for sleep mode. Use Value: Independent SHDNA/SHDNB control reduces system standby current by >99% versus non-shutdown alternatives. |
| Portable Audio Line Drivers | Battery Voltage Monitoring |
|
Use Scenario: Driving 32-Ω headphones and line outputs in PDAs, Bluetooth speakers, and voice-enabled remotes. IC Role / Device Role / Timing Role: Rail-to-rail output buffer delivering 1-VPP audio into 32-Ω loads from 1.8-V supply with minimal THD. Use Value: 80-mV-from-rail swing into 600 Ω and 0.022% THD at 1 kHz preserve SNR >95 dB in portable audio DAC interfaces. |
Use Scenario: Precision scaling and offset correction of battery pack voltage for fuel gauging in medical devices and wearables. IC Role / Device Role / Timing Role: Dual op-amp configured as differential amplifier and reference buffer for 12-bit SAR ADC inputs. Use Value: 200-mV beyond-rail VICR enables direct measurement of cells below ground (e.g., −0.1 V sense) without negative supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-I/SN | Higher 10-µA quiescent current; no shutdown function; 10-MHz GBW; SOIC-8 package (larger footprint) | Suitable for higher-speed, non-battery-critical applications where PCB area is not constrained | Select MCP6022-I/SN only if >1-MHz bandwidth is required and shutdown is unnecessary; verify layout compatibility with SOIC-8 vs MSOP-10 |
| TSV912IDT | Lower 55-µA quiescent current; no shutdown; 8-MHz GBW; rail-to-rail I/O; SOIC-8 and MiniSO-8 packages | Better suited for high-precision, low-power applications without dynamic power control needs | Choose TSV912IDT when ultra-low ICC is critical and shutdown is not required; confirm thermal performance with SOIC-8 footprint |
Compared with MCP6022-I/SN and TSV912IDT, LMV982IDGSR uniquely combines sub-100-µA quiescent current, independent dual-channel shutdown, and MSOP-10 packaging-making it the only option among the three qualified for automotive-grade extended temperature operation with active power management.
Availability
LMV982IDGSR is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive cabin environment monitoring, portable audio line drivers, and battery voltage monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV982IDGSR 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 LMV98x family was designed specifically for ultra-low-voltage, battery-operated applications demanding rail-to-rail performance, shutdown capability, and extended temperature reliability-targeting industrial metering, automotive sensing, and portable consumer electronics.
FAQ
What is the maximum operating temperature specification for LMV982IDGSR?
The LMV982IDGSR is fully specified and tested over an operating free-air temperature range of −40°C to +125°C. This rating is confirmed in the "recommended operating conditions" table of the official TI datasheet SLOS440H, making LMV982IDGSR suitable for under-hood automotive applications and industrial environments where ambient temperatures exceed 105°C.
Does LMV982IDGSR support true rail-to-rail input operation?
Yes, LMV982IDGSR supports true rail-to-rail input operation with a common-mode input voltage range extending 200 mV beyond both supply rails (VCC− − 0.2 V to VCC+ + 0.2 V). This is explicitly verified in the electrical characteristics tables for all supply voltages (1.8 V, 2.7 V, and 5 V) and enables direct interfacing with sensors whose output may go slightly below ground or above VCC.
What is the typical turn-on time from shutdown for LMV982IDGSR at 5 V supply?
The typical turn-on time from shutdown for LMV982IDGSR is 8.4 µs when operated at VCC+ = 5 V, as measured from SHDN rising edge to output settling within 1% of final value. This parameter is documented in the "electrical characteristics" section of the TI datasheet SLOS440H under the Ton test condition at 5 V.
Can LMV982IDGSR drive a 600-Ω load while maintaining rail-to-rail output swing at 1.8 V?
At 1.8 V supply and 25°C, LMV982IDGSR delivers a minimum output swing of 80 mV from each rail into a 600-Ω load - meaning it reaches within 80 mV of VCC+ and VCC−. This is confirmed in the "Output swing" specifications for 1.8-V operation in the TI datasheet SLOS440H, ensuring >95% usable output range for low-voltage ADC interfacing.
Is LMV982IDGSR pin-compatible with other devices in the LMV98x family?
No, LMV982IDGSR is not pin-compatible with LMV981 variants (e.g., LMV981IDBVR or LMV981IDCKR) due to differing channel count and package: LMV982IDGSR uses a 10-pin MSOP (DGS) for dual channels, while LMV981 parts use 6-pin SOT-23 or SC-70 for single channel. Pin mapping and terminal count differ fundamentally - substitution requires PCB redesign.
LMV982IDGSR 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
LMV982IDGSR FAQ
1.How can I place an order for LMV982IDGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV982IDGSR 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 LMV982IDGSR reliable?
The price and inventory of LMV982IDGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV982IDGSR is usually 5 days.
3.What payment methods are accepted for LMV982IDGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV982IDGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV982IDGSR?
LMV982IDGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV982IDGSR 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 LMV982IDGSR?
For technical support, including LMV982IDGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV982IDGSR requirements.
6.How does Aetrix verify that LMV982IDGSR is sourced from the original manufacturer or authorized distributors?
All LMV982IDGSR 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 LMV982IDGSR meets industry standards.
7.What is the process for return or replacement of LMV982IDGSR?
All LMV982IDGSR units undergo pre-shipment inspection (PSI). If there is an issue with LMV982IDGSR, 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 LMV982IDGSR part is unused and in its original packaging.
Return procedure for LMV982IDGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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