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Texas Instruments LMV931IDBVRE4
- Part No.:
- LMV931IDBVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV931IDBVRE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,049
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Product details
Overview
LMV931IDBVRE4 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 - used in battery-powered sensor signal conditioning and portable audio front-ends.
For engineers reviewing the LMV931IDBVRE4 datasheet, LMV931IDBVRE4 pinout, LMV931IDBVRE4 application, or LMV931IDBVRE4 equivalent, key selection criteria include low-voltage rail-to-rail performance, ultra-low quiescent current, input common-mode range extending 200 mV beyond rails, and compatibility with single-cell Li-ion or two-cell alkaline supplies.
Technical Context
The LMV931IDBVRE4 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 under load. Its 1.4-MHz unity-gain bandwidth and 0.35-V/μs slew rate are optimized for low-power, low-frequency signal amplification.
It operates across –40°C to +125°C with guaranteed specifications at 1.8 V, 2.7 V, and 5 V supply; input offset voltage is ≤4 mV (max), CMRR ≥50 dB over full common-mode range, and supply rejection ratio kSVR ≥70 dB - making it suitable for precision sensing in thermally demanding industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - enables direct interface with 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 - supports stable closed-loop gain up to ~140 at 10 kHz for anti-aliasing or sensor amplification. |
| Supply Current per Channel | 100 μA - allows continuous operation for >1 year on a 200-mAh coin cell in always-on monitoring circuits. |
| Input Offset Voltage | ≤4 mV (max) - ensures <0.2% error in 2-V full-scale bridge sensor outputs without trimming. |
| Output Swing (600 Ω) | 80 mV from rail - delivers >95% of full dynamic range in 1.8-V systems, critical for ADC input drive. |
| Input Common-Mode Range | VCC− − 0.2 V to VCC+ + 0.2 V - accepts signals below ground or above supply, simplifying level-shifting in mixed-supply designs. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial metering applications. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.15 mm body, surface-mount, lead-free (RoHS-compliant), thermal resistance θJA = 206°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | High-impedance CMOS node accepting signals from sensors or DACs; supports VICR beyond rails. |
| 2 (IN−) | Inverting input | Differential input node for feedback configuration; matched bias current minimizes offset drift. |
| 3 (VCC−) | Negative supply rail | Ground reference for single-supply operation; also serves as return path for input bias current. |
| 4 (VCC+) | Positive supply rail | Accepts 1.8–5 V; internal regulation not required; decoupling capacitor recommended at pin. |
| 5 (OUTPUT) | Amplifier output | Class AB stage capable of sourcing/sinking ≥3 mA; drives 600-Ω loads with <80-mV headroom. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range - eliminates need for level-shifting circuitry in low-voltage data acquisition. |
| 100-μA quiescent current | Reduces power budget impact in multi-amplifier signal chains; allows integration into energy-harvesting nodes. |
| 200-mV beyond-rail input range | Supports direct connection to transducers with negative transient excursions (e.g., piezoelectric sensors). |
| 1.4-MHz GBW at 1.8 V | Maintains usable bandwidth down to lowest operating voltage - unlike many low-power op-amps that degrade significantly below 2.7 V. |
| –40°C to +125°C operation | Validated across full automotive temperature grade without derating - avoids thermal margining in engine control modules. |
Applications
| Industrial Sensor Interface | Portable Audio Preamp |
|---|---|
Use Scenario: Amplifying low-level output from RTD or thermistor bridges in smart utility meters. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail input to capture full sensor span at 1.8 V. Use Value: 4-mV max VIO and 50-dB min CMRR ensure <0.1% measurement error across temperature without calibration. | Use Scenario: Buffering DAC output to headphone driver in Bluetooth earbuds. IC Role / Device Role / Timing Role: Low-noise, low-distortion unity-gain buffer with rail-to-rail output swing. Use Value: 0.023% THD+N at 1 kHz and 60-nV/√Hz input noise preserve audio fidelity in battery-constrained form factors. |
| Battery Voltage Monitor | Automotive Cabin Sensor Signal Chain |
Use Scenario: Scaling and conditioning single-cell Li-ion voltage for ADC input in wearables. IC Role / Device Role / Timing Role: High-input-impedance attenuator/amplifier with VCC-referenced output swing. Use Value: 100-μA ICC extends system runtime; 80-mV output headroom ensures accurate 12-bit ADC quantization at end-of-discharge. | Use Scenario: Signal conditioning for CO₂ or humidity sensors in HVAC control units. IC Role / Device Role / Timing Role: Low-drift, ESD-hardened front-end amplifier operating from 3.3-V rail. Use Value: 2-kV HBM ESD rating and 125°C qualification eliminate external protection components and thermal derating. |
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 VIO (1.6 mV typ), higher GBW (1 MHz), same SOT-23-5 package, but 150-μA ICC. | Better DC accuracy for precision instrumentation; higher power limits use in ultra-low-power wake-up circuits. | Select TLV9001IDBVR when offset-critical 12-bit+ measurements outweigh current budget constraints. |
| LPV821DBVR | Lower ICC (650 nA), lower GBW (6.5 kHz), same rail-to-rail I/O, but not rated beyond 85°C. | Optimized for nanowatt sensor nodes; insufficient bandwidth for audio or fast-sampling applications. | Select LPV821DBVR only for sub-10-kHz, room-temperature, energy-harvesting applications where current dominates all other specs. |
Compared with TLV9001IDBVR and LPV821DBVR, LMV931IDBVRE4 uniquely balances 1.4-MHz bandwidth, 100-μA current, and –40°C to +125°C operation - making it the only option among the three qualified for automotive under-hood and industrial metering use cases requiring both speed and wide-temperature reliability.
Availability
LMV931IDBVRE4 is available at Aetrix Electronics and suitable for industrial sensor interface, portable audio preamplification, battery voltage monitoring, and automotive cabin sensor signal chain applications requiring stable component supply across extended temperature ranges.
Supply support for LMV931IDBVRE4 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 company designing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and consumer markets.
The LMV93x family was designed specifically for low-voltage, low-power signal conditioning in portable and battery-operated systems - emphasizing rail-to-rail operation, wide supply range (1.8–5 V), and robustness across –40°C to +125°C.
FAQ
What is the maximum supply voltage for LMV931IDBVRE4?
The absolute maximum supply voltage (VCC+ – VCC−) for LMV931IDBVRE4 is 5.5 V. However, the recommended operating range is 1.8 V to 5 V. Operation above 5 V risks permanent damage, and electrical specifications are only guaranteed within the 1.8–5-V range per the SLOS441G datasheet. LMV931IDBVRE4 must never be operated at 5.5 V continuously.
Does LMV931IDBVRE4 support true rail-to-rail input at 1.8 V?
Yes, LMV931IDBVRE4 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 verified in the Electrical Characteristics table for VCC = 1.8 V, where VICR is specified as VCC− − 0.2 V to VCC+ + 0.2 V with CMRR ≥50 dB - enabling direct interfacing with transducers generating signals below ground or above VCC.
What is the output drive capability of LMV931IDBVRE4 into a 600-Ω load?
At 1.8 V supply, LMV931IDBVRE4 delivers an output swing of 80 mV from each rail into a 600-Ω load - meaning VO(HIGH) ≥ 1.72 V and VO(LOW) ≤ 0.08 V. It can source ≥3.3 mA and sink ≥5 mA under these conditions, as confirmed by the Electrical Characteristics table (Sourcing/Sinking IOS values at 1.8 V). This drive strength supports direct ADC driving without external buffers.
Is LMV931IDBVRE4 suitable for automotive applications?
Yes, LMV931IDBVRE4 is characterized for operation from –40°C to +125°C and explicitly listed in the datasheet for automotive applications. Its 2-kV HBM ESD rating, rail-to-rail performance at 1.8 V, and guaranteed specs across temperature make it suitable for cabin sensors and body-control modules - though not qualified for AEC-Q100 Grade 0/1 due to its OBSOLETE status per TI's packaging addendum.
What does the "E4" suffix indicate in LMV931IDBVRE4?
The "E4" suffix in LMV931IDBVRE4 denotes a legacy RoHS-compliant packaging variant per Texas Instruments' historical part numbering convention. According to TI's PACKAGE OPTION ADDENDUM (25-Oct-2016), LMV931IDBVRE4 is marked as OBSOLETE and uses the same SOT-23-5 (DBV) package as LMV931IDBVR, with identical pinout, electrical specs, and thermal characteristics - the E4 variant differs only in lead finish and tape-and-reel packaging details.
LMV931IDBVRE4 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:
- -
- 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
LMV931IDBVRE4 FAQ
1.How can I place an order for LMV931IDBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV931IDBVRE4 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 LMV931IDBVRE4 reliable?
The price and inventory of LMV931IDBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV931IDBVRE4 is usually 5 days.
3.What payment methods are accepted for LMV931IDBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV931IDBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV931IDBVRE4?
LMV931IDBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV931IDBVRE4 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 LMV931IDBVRE4?
For technical support, including LMV931IDBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV931IDBVRE4 requirements.
6.How does Aetrix verify that LMV931IDBVRE4 is sourced from the original manufacturer or authorized distributors?
All LMV931IDBVRE4 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 LMV931IDBVRE4 meets industry standards.
7.What is the process for return or replacement of LMV931IDBVRE4?
All LMV931IDBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV931IDBVRE4, 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 LMV931IDBVRE4 part is unused and in its original packaging.
Return procedure for LMV931IDBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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