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Texas Instruments LMV931IDBVRG4
- Part No.:
- LMV931IDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV931IDBVRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,856
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Product details
Overview
LMV931IDBVRG4 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 with 1.4-MHz gain bandwidth, 100-μA supply current per channel, and 4-mV max input offset voltage. It enables precision signal conditioning in space-constrained, low-voltage portable systems such as battery monitoring and consumer audio front-ends.
For engineers reviewing the LMV931IDBVRG4 datasheet, LMV931IDBVRG4 pinout, LMV931IDBVRG4 application, or LMV931IDBVRG4 equivalent, key selection criteria include rail-to-rail output swing (80 mV from rail at 600 Ω), input common-mode range extending 200 mV beyond rails, and guaranteed operation from –40°C to 125°C in industrial and automotive environments.
Technical Context
The LMV931IDBVRG4 employs a Class AB output stage optimized for low-voltage operation, supporting rail-to-rail output swing into 600-Ω loads while maintaining stability with up to 1000-pF capacitive loads. Its input stage uses complementary NPN/PNP transistors enabling 200-mV beyond-rail common-mode input range.
It delivers 101-dB open-loop DC gain and 67° phase margin at 1.8 V, with slew rate of 0.35 V/μs and THD of 0.023% at 1 kHz. The device is characterized across full temperature range (–40°C to 125°C) and supports single-supply operation without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - Enables direct interface with Li-ion single-cell or two-cell battery systems without regulation. |
| Gain Bandwidth Product | 1.4 MHz - Supports stable closed-loop operation up to ~100 kHz with moderate gain in sensor amplification stages. |
| Input Offset Voltage (max) | 4 mV - Ensures ≤0.2% error in 12-bit ADC front-end applications with 2-V full-scale input range. |
| Rail-to-Rail Output Swing | 80 mV from rail (600 Ω load, 1.8 V supply) - Maximizes dynamic range in low-voltage data acquisition paths. |
| Supply Current per Channel | 100 μA - Allows integration into always-on battery-powered nodes with multi-year runtime requirements. |
| Input Common-Mode Range | VCC− − 0.2 V to VCC+ + 0.2 V - Accepts inputs below ground or above supply, simplifying level translation in mixed-supply systems. |
| Operating Temperature | –40°C to 125°C - Qualified for under-hood automotive and industrial utility metering deployments. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.15 mm body, surface-mount, lead-free (RoHS-compliant), moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | High-impedance node accepting signals within 200 mV beyond supply rails; bias current ≤75 nA. |
| 2 (IN−) | Inverting input | Differential input terminal; matched to IN+ for <4 mV offset and >50 dB CMRR over full common-mode range. |
| 3 (VCC−) | Negative supply rail | Ground reference for single-supply operation; supports true 0-V input capability when tied to system GND. |
| 4 (VCC+) | Positive supply rail | Accepts 1.8–5 V; internal regulation ensures stable biasing across supply variation and temperature. |
| 5 (OUTPUT) | Amplifier output | Class AB stage drives ≥600 Ω load to within 80 mV of either rail; short-circuit protected (±45 mA typical). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply headroom in battery-powered signal chains without external level shifters. |
| 200-mV beyond-rail input common-mode range | Permits direct connection to sensors or DACs operating outside supply rails, reducing external component count. |
| 100-μA quiescent current per channel | Supports ultra-low-power wake-on-event architectures where amplifier remains active during sleep modes. |
| Stable with 1000-pF capacitive load | Eliminates need for isolation resistors when driving ADC input capacitors or long PCB traces. |
| Specified from –40°C to 125°C | Validates performance in engine control units, smart meters, and industrial PLC I/O modules without derating. |
Applications
| Battery Monitoring | Portable Audio Front-End |
|---|---|
Use Scenario: Real-time measurement of cell voltage and current in Li-ion battery packs for state-of-charge estimation. IC Role / Device Role / Timing Role: Precision buffer and level-shifter for ADC input, rejecting supply ripple and thermal drift. Use Value: 4-mV max VIO and 75-dB CMRR at 0.2 V input ensure ≤0.1% measurement error across temperature and aging. |
Use Scenario: Low-noise preamplification of microphone or line-level signals in Bluetooth headsets and wearables. IC Role / Device Role / Timing Role: Single-supply op-amp providing gain and DC blocking in analog signal path prior to codec. Use Value: 60-nV/√Hz input noise and rail-to-rail output swing preserve SNR in 1.8-V audio chains with 2-Vpp signal envelopes. |
| Industrial Sensor Interface | Energy Metering Signal Conditioning |
Use Scenario: Amplification and filtering of millivolt-level outputs from RTDs, thermocouples, or strain gauges in factory automation. IC Role / Device Role / Timing Role: Instrumentation-grade buffer with high input impedance and low bias current to prevent sensor loading. Use Value: 65-nA max input bias current avoids offset errors in high-impedance bridge circuits; 1.4-MHz GBW supports anti-alias filtering. |
Use Scenario: Current-sense amplifier stage in residential/utility electricity meters measuring neutral and phase currents. IC Role / Device Role / Timing Role: Low-drift, rail-to-rail op-amp converting shunt voltage to ADC-compatible levels under varying supply conditions. Use Value: 5.5-μV/°C VIO drift and 70-dB kSVR maintain accuracy across 1.8–5-V supply variation and ambient temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9001IDBVR | Lower 0.1-mV typical VIO, 1-MHz GBW, same SOT-23-5 package, but 50-μA supply current. | Better DC precision for high-resolution sensor interfaces; lower power but reduced bandwidth vs. LMV931IDBVRG4. | Select TLV9001IDBVR when offset drift and noise dominate over speed; verify stability with capacitive loads. |
| OPA316IDBVR | Higher 10-MHz GBW, 0.15-mV VIO, 400-μA ICC, same DBV package, but not specified below 2.7 V. | Superior AC performance for active filters or higher-frequency signal paths; incompatible with 1.8-V operation. | Choose OPA316IDBVR only if supply ≥2.7 V and bandwidth >1.4 MHz is required; not suitable for single-cell Li-ion systems. |
Compared with TLV9001IDBVR and OPA316IDBVR, LMV931IDBVRG4 uniquely balances ultra-low supply current (100 μA), guaranteed 1.8-V operation, and rail-to-rail I/O in a legacy-qualified SOT-23-5 footprint-making it optimal for cost-sensitive, battery-constrained industrial and automotive endpoints where 1.4-MHz bandwidth suffices.
Availability
LMV931IDBVRG4 is available at Aetrix Electronics and suitable for battery monitoring, portable audio front-ends, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV931IDBVRG4 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 engineered for low-voltage, low-power signal conditioning in portable and energy-sensitive systems-prioritizing rail-to-rail operation, sub-100-μA quiescent current, and robustness across –40°C to 125°C.
FAQ
What supply voltage range does the LMV931IDBVRG4 support?
The LMV931IDBVRG4 operates from 1.8 V to 5 V, making it compatible with single-cell Li-ion (2.7–4.2 V), two-cell alkaline (2.4–3.2 V), and regulated 3.3-V or 5-V systems. Absolute maximum supply is 5.5 V. Operation below 1.8 V is not characterized and may result in degraded performance or instability.
Is the LMV931IDBVRG4 pin-compatible with other members of the LMV93x family?
No, the LMV931IDBVRG4 is not pin-compatible with LMV932 (dual) or LMV934 (quad) variants. It uses a 5-pin SOT-23-5 (DBV) package with dedicated IN+, IN−, VCC−, VCC+, and OUTPUT pins. Dual and quad versions require different pin counts and layouts (e.g., 8-pin SOIC or 14-pin TSSOP), necessitating PCB redesign for substitution.
Does the LMV931IDBVRG4 support rail-to-rail input and output simultaneously?
Yes, the LMV931IDBVRG4 provides true rail-to-rail input (common-mode range extends 200 mV beyond both rails) and rail-to-rail output (swings to within 80 mV of either rail at 600 Ω, 1.8 V). This allows full-scale signal handling in single-supply configurations without external level-shifting components.
What is the maximum capacitive load the LMV931IDBVRG4 can drive stably?
The LMV931IDBVRG4 is characterized to remain stable with up to 1000 pF capacitive load in unity-gain configuration, per TI's SLOS441G datasheet Figure 10–13. For loads exceeding 1000 pF, an isolation resistor (typically 10–50 Ω) between output and capacitance is recommended to prevent peaking or oscillation.
Is the LMV931IDBVRG4 suitable for automotive applications?
Yes, the LMV931IDBVRG4 is qualified for operation from –40°C to 125°C and meets AEC-Q100 stress test requirements for temperature cycling and HTOL. Its 1.8-V minimum supply supports start-stop vehicle systems, and its rail-to-rail I/O simplifies integration with 3.3-V microcontrollers and CAN/LIN transceivers in body control modules.
LMV931IDBVRG4 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
LMV931IDBVRG4 FAQ
1.How can I place an order for LMV931IDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV931IDBVRG4 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 LMV931IDBVRG4 reliable?
The price and inventory of LMV931IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV931IDBVRG4 is usually 5 days.
3.What payment methods are accepted for LMV931IDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV931IDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV931IDBVRG4?
LMV931IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV931IDBVRG4 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 LMV931IDBVRG4?
For technical support, including LMV931IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV931IDBVRG4 requirements.
6.How does Aetrix verify that LMV931IDBVRG4 is sourced from the original manufacturer or authorized distributors?
All LMV931IDBVRG4 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 LMV931IDBVRG4 meets industry standards.
7.What is the process for return or replacement of LMV931IDBVRG4?
All LMV931IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV931IDBVRG4, 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 LMV931IDBVRG4 part is unused and in its original packaging.
Return procedure for LMV931IDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV931IDBVRG4 Tags
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LM358DR
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