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Texas Instruments LMV931IDBVR
- Part No.:
- LMV931IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV931IDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,031
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Product details
Overview
LMV931IDBVR from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier in SOT-23-5 package, specified for 1.8-V to 5-V operation, delivering 1.4-MHz gain bandwidth, 100-μA supply current per channel, and 80-mV output swing from rail into 600-Ω load - ideal for low-voltage battery-powered signal conditioning in portable audio and energy metering.
For engineers reviewing the LMV931IDBVR datasheet, LMV931IDBVR pinout, LMV931IDBVR application, or LMV931IDBVR equivalent, key selection criteria include its rail-to-rail input common-mode range extending 200 mV beyond rails, 4-mV max input offset voltage, −40°C to +125°C operating temperature, and compatibility with single-cell Li-ion or two-cell alkaline supplies.
Technical Context
The LMV931IDBVR employs a CMOS input stage enabling rail-to-rail input voltage range (VICR = VCC− − 0.2 V to VCC+ + 0.2 V) and Class AB output stage supporting rail-to-rail output swing with 600-Ω load. Its 1.4-MHz unity-gain bandwidth and 0.35-V/μs slew rate are optimized for low-power, low-voltage closed-loop configurations.
It features 101-dB open-loop DC gain at 1.8 V, 77-dB large-signal voltage gain into 600-Ω load, and 103-μA typical quiescent current per channel - enabling precision amplification without compromising battery life in space-constrained industrial and automotive sensor interfaces.
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 (2.4–3.2 V) systems without regulation. |
| Gain Bandwidth Product | 1.4 MHz - enables stable unity-gain buffer or gain-of-10 amplification up to ~140 kHz in low-noise sensor front-ends. |
| Input Offset Voltage (max) | 4 mV - ensures ≤0.4% error in 1-V full-scale analog-to-digital conversion without trimming. |
| Supply Current per Channel | 100 μA - allows >10-year battery life in always-on 10-μA system-level sleep modes with periodic wake-up sensing. |
| Rail-to-Rail Output Swing | 80 mV from rail into 600 Ω - preserves >95% dynamic range in 1.8-V systems driving ADC reference buffers or transimpedance stages. |
| Input Common-Mode Range | VCC− − 0.2 V to VCC+ + 0.2 V - accepts ground-referenced or above-rail signals in single-supply configurations without level-shifting. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, utility meter, and industrial control environments. |
Pinout & Package
SOT-23-5 (DBV) package: ultra-compact 2.9 mm × 1.6 mm footprint with 0.95-mm pitch, optimized for high-density PCB layouts in portable and embedded systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting Input | High-impedance CMOS node accepting signals from 0.2 V below VCC− to 0.2 V above VCC+. |
| 2 (IN−) | Inverting Input | Differential input terminal; used with feedback network to set closed-loop gain and stability. |
| 3 (VCC−) | Negative Supply Rail | Ground reference for single-supply operation; must be connected directly to system GND plane. |
| 4 (VCC+) | Positive Supply Rail | Accepts 1.8–5 V; decoupling capacitor (0.1 μF) required within 2 mm of this pin for stability. |
| 5 (OUTPUT) | Amplifier Output | Class AB stage capable of sourcing/sinking ≥20 mA; drives 600-Ω loads to within 80 mV of either rail. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply in single-ended configurations - eliminates need for level-shifting circuitry in microcontroller ADC front-ends. |
| 100-μA quiescent current | Permits integration into always-on battery monitoring circuits where average current budget is <100 μA across multiple channels. |
| 200-mV input common-mode extension | Supports direct sensing of signals referenced to VCC− (e.g., shunt-based current measurement) without external bias resistors. |
| 1.4-MHz GBW at 1.8 V | Provides sufficient bandwidth for anti-aliasing filtering and sensor signal amplification in sub-100-kHz industrial data acquisition. |
| −40°C to +125°C operation | Meets AEC-Q100 stress test requirements for automotive body electronics and smart grid metering applications. |
Applications
| Portable Audio Signal Chain | Battery Voltage Monitoring |
|---|---|
Use Scenario: Amplifying line-level audio signals from MEMS microphones or DAC outputs in Bluetooth earbuds powered by 1.8-V LDOs. IC Role / Device Role / Timing Role: Single-supply non-inverting amplifier with gain of 2–10, providing low-noise buffering before Class D driver ICs. Use Value: 60-nV/√Hz input noise and rail-to-rail swing preserve SNR >95 dB across 20 Hz–20 kHz while consuming <100 μA. | Use Scenario: Measuring cell voltage in two-cell Li-ion packs (2.4–8.4 V range) using resistor-divider and microcontroller ADC. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance divider from ADC input, rejecting supply ripple via 75-dB PSRR. Use Value: 4-mV max VIO introduces <0.5% error at 3.3-V mid-range; 100-μA ICC extends battery runtime by >30% vs. standard op-amps. |
| Energy Metering Front-End | Automotive Cabin Sensor Interface |
Use Scenario: Conditioning current-sense signals from Rogowski coils or shunts in DIN-rail electricity meters operating at 1.8 V. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting nanoamp-level sensor currents into 0–1.8-V ADC-compatible voltages. Use Value: 200-mV VICR extension below VCC− enables direct connection to grounded shunt; 1.4-MHz GBW supports 50/60-Hz harmonic analysis. | Use Scenario: Amplifying thermistor or NTC voltage divider outputs in HVAC control modules exposed to under-dash temperatures up to 125°C. IC Role / Device Role / Timing Role: Low-drift, high-CMRR amplifier rejecting engine bay EMI while maintaining accuracy over full automotive temperature range. Use Value: 5.5-μV/°C VIO drift and 75-dB CMRR at 60 Hz ensure <1°C error in cabin temperature reporting across −40°C to +125°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9001IDBVR | Lower 0.1-μV/°C VIO drift, 1-MHz GBW, same SOT-23-5 package and 1.8-V min supply. | Superior DC precision for long-term sensor calibration; reduced bandwidth limits AC response. | Select TLV9001IDBVR when VIO stability over temperature is critical and signal bandwidth <100 kHz. |
| OPA316IDBVR | Higher 10-MHz GBW, 1.2-mA ICC, same rail-to-rail I/O and −40°C to +125°C rating. | Supports faster settling in multiplexed data acquisition; higher supply current reduces battery life. | Choose OPA316IDBVR for high-speed sampling systems where power budget permits >10× higher ICC. |
Compared with TLV9001IDBVR and OPA316IDBVR, the LMV931IDBVR delivers optimal balance of ultra-low power (100 μA), adequate bandwidth (1.4 MHz), and robust rail-to-rail performance across −40°C to +125°C - making it uniquely suited for cost-sensitive, battery-constrained industrial and automotive signal chains where precision and speed are secondary to longevity and reliability.
Availability
LMV931IDBVR is available at Aetrix Electronics and suitable for portable audio, battery monitoring, and energy metering applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV931IDBVR 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.
The LMV93x family was designed specifically for ultra-low-voltage, low-power applications such as portable instrumentation, battery-powered sensors, and energy-efficient industrial controls - prioritizing rail-to-rail operation and sub-100-μA quiescent current without sacrificing AC performance.
FAQ
What is the maximum supply voltage for LMV931IDBVR?
The absolute maximum supply voltage (VCC+ – VCC−) for LMV931IDBVR is 5.5 V, but the recommended operating range is 1.8 V to 5 V per the datasheet. Operation at 5.5 V risks permanent damage; sustained use at 5 V is fully characterized and supported with 1.5-MHz gain bandwidth and 4.85-V output swing into 600 Ω. LMV931IDBVR maintains rail-to-rail functionality across this entire range.
Does LMV931IDBVR support true rail-to-rail input at 1.8 V?
Yes, LMV931IDBVR supports rail-to-rail input with common-mode range extending 200 mV beyond both supply rails (VCC− − 0.2 V to VCC+ + 0.2 V) at 1.8 V. This is confirmed in the Electrical Characteristics table for VCC = 1.8 V, where VICR is specified as VCC− − 0.2 V to VCC+ + 0.2 V at 25°C and full temperature range - enabling direct interface with grounded or above-rail sensor signals without external biasing.
What is the output drive capability of LMV931IDBVR into 600 Ω at 1.8 V?
At 1.8 V supply, LMV931IDBVR delivers output swing to within 80 mV of each rail into a 600-Ω load, as specified in the Electrical Characteristics table. It can source up to 3.3 mA and sink up to 5 mA under those conditions. This rail-to-rail capability ensures >95% usable dynamic range in low-voltage ADC driver and transimpedance applications without external level-shifting circuitry.
Is LMV931IDBVR suitable for automotive applications?
Yes, LMV931IDBVR is characterized for operation from −40°C to +125°C and meets automotive ambient temperature requirements. While not AEC-Q200 certified as a standalone component, its specified temperature range, 2000-V HBM ESD rating, and robust rail-to-rail performance make it widely deployed in automotive cabin sensors, battery monitors, and body control modules - provided system-level qualification is completed per OEM requirements.
What package type does LMV931IDBVR use and what are its dimensions?
LMV931IDBVR uses the SOT-23-5 (DBV) package: a 5-pin surface-mount package measuring 2.90 mm × 1.60 mm × 1.15 mm with 0.95-mm lead pitch. The top-side marking is "RBB_", where the underscore represents an assembly/test site code. This compact footprint supports high-density layouts in space-constrained portable and automotive PCBs.
LMV931IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- 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:
- SOT-23-5
LMV931IDBVR FAQ
1.How can I place an order for LMV931IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV931IDBVR 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 LMV931IDBVR reliable?
The price and inventory of LMV931IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV931IDBVR is usually 5 days.
3.What payment methods are accepted for LMV931IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV931IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV931IDBVR?
LMV931IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV931IDBVR 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 LMV931IDBVR?
For technical support, including LMV931IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV931IDBVR requirements.
6.How does Aetrix verify that LMV931IDBVR is sourced from the original manufacturer or authorized distributors?
All LMV931IDBVR 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 LMV931IDBVR meets industry standards.
7.What is the process for return or replacement of LMV931IDBVR?
All LMV931IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with LMV931IDBVR, 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 LMV931IDBVR part is unused and in its original packaging.
Return procedure for LMV931IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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