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Texas Instruments LMV981IDBVRE4
- Part No.:
- LMV981IDBVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
LMV981IDBVRE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,306
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Product details
Overview
LMV981IDBVRE4 from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for 1.8-V to 5-V low-power portable systems. It delivers 1.4-MHz gain bandwidth, 100-µA supply current per channel, 4-mV max input offset voltage, and shutdown capability with 0.156-µA quiescent current - enabling precision signal conditioning in battery-powered energy metering and sensor front-ends.
For engineers reviewing the LMV981IDBVRE4 datasheet, LMV981IDBVRE4 pinout, LMV981IDBVRE4 application, or LMV981IDBVRE4 equivalent, key selection criteria include its 200-mV beyond-rail common-mode input range, 80-mV rail-to-rail output swing into 600 Ω at 1.8 V, fast 8.4-µs wake-up from shutdown, and SOT-23-6 package compatibility with space-constrained PCB layouts.
Technical Context
The LMV981IDBVRE4 employs a Class AB output stage with complementary input pairs to achieve true rail-to-rail operation across 1.8–5-V supplies. Its input common-mode range extends 200 mV beyond both rails, supporting single-supply sensing of ground-referenced signals without level-shifting circuitry.
Internal biasing enables stable operation with capacitive loads up to 1000 pF while driving 600-Ω loads, and the shutdown control (SHDN) pin reduces total supply current to sub-microamp levels - critical for intermittent-sampling architectures in industrial monitoring and battery health systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - supports direct connection to single Li-ion or dual alkaline cells without regulation. |
| Gain Bandwidth Product | 1.4 MHz - sufficient for anti-aliasing filters, sensor amplification, and low-speed data acquisition up to ~100 kHz. |
| Input Offset Voltage (max) | 4 mV at 25°C - enables accurate DC-coupled amplification of millivolt-level transducer outputs. |
| Supply Current (per channel) | 100 µA - allows integration of multiple channels in ultra-low-power systems with <100-µA sleep budgets. |
| Rail-to-Rail Output Swing | 80 mV from rail into 600 Ω at 1.8 V - maximizes dynamic range in low-voltage ADC interfaces. |
| Common-Mode Input Range | VCC− − 0.2 V to VCC+ + 0.2 V - accepts inputs below ground or above supply, simplifying bipolar signal conditioning. |
| Shutdown Quiescent Current | 0.156 µA at 1.8 V - reduces system standby power by >99% versus active mode. |
Pinout & Package
SOT-23-6 (DBV) package: 2.9 mm × 1.6 mm × 1.15 mm body, surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C reflow compatible).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | Differential node for feedback configuration; high-impedance (65 nA bias current) enables high-gain precision circuits. |
| 2 (IN+) | Non-inverting input | Accepts signals from sensors or references; supports common-mode voltages 200 mV beyond rails. |
| 3 (VCC−/GND) | Negative supply / ground reference | Single-supply operation uses this as system ground; must be low-impedance for noise immunity. |
| 4 (VCC+) | Positive supply | Accepts 1.8–5 V; internal regulation ensures stable biasing across voltage range. |
| 5 (SHDN) | Active-high shutdown control | Pull ≥1.0 V (1.8 V supply) to enable; ≤0.55 V to enter ultra-low-power shutdown state. |
| 6 (OUT) | Amplifier output | Drives 600 Ω load to within 80 mV of rails; capable of sourcing 80 mA / sinking 58 mA at 5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full-scale signal utilization in 1.8-V systems, eliminating need for level-shifting or dual supplies. |
| 200-mV beyond-rail VICR | Permits direct interface to ground-referenced thermistors, bridge sensors, or current-sense resistors without external biasing. |
| 8.4-µs turn-on time from shutdown | Supports burst-mode sampling where amplifiers activate only during measurement windows, minimizing average power. |
| 1000-pF capacitive load drive | Stable operation into ADC input capacitance or long traces without external isolation resistors. |
| −40°C to 125°C operating range | Validated for automotive cabin modules, industrial motor controllers, and outdoor utility metering deployments. |
Applications
| Energy Metering Front-End | Automotive Cabin Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level shunt voltage in single-phase electricity meters powered by 1.8-V coin-cell backup. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail output feeding 12-bit SAR ADC. Use Value: 4-mV max VIO and 200-mV beyond-rail VICR eliminate offset calibration and enable direct ground-referenced measurement. | Use Scenario: Conditioning NTC thermistor output in HVAC control modules exposed to −40°C to 85°C ambient. IC Role / Device Role / Timing Role: Low-drift buffer and gain stage operating from 2.7-V vehicle bus with shutdown during sleep cycles. Use Value: 100-µA supply current and guaranteed operation to 125°C ensure compliance with automotive thermal and power budgets. |
| Portable Audio Line Driver | Battery Voltage Monitor |
Use Scenario: Driving headphone amplifiers or codec line inputs in PDAs using 3.3-V LDO supply. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output buffer isolating DAC from variable load impedance. Use Value: 80-mV rail-to-rail swing into 600 Ω preserves >95% of 3.3-V full-scale dynamic range for high-fidelity audio. | Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in handheld medical devices. IC Role / Device Role / Timing Role: High-impedance voltage follower feeding ADC, activated only during periodic battery checks. Use Value: 0.156-µA shutdown current extends battery life between measurements; 1.4-MHz GBW ensures fast settling for accurate SOC estimation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9001IDBVR | Lower 0.65-mV max VIO, higher 1-MHz GBW, but 150-µA supply current and no shutdown pin. | Lacks integrated shutdown; requires external enable logic for ultra-low-power duty cycling. | Choose TLV9001IDBVR when offset-critical DC accuracy outweighs shutdown necessity and power budget allows +50 µA. |
| OPA316IDBVR | Higher 10-MHz GBW, lower 0.15-mV max VIO, 400-µA supply current, no shutdown, wider 1.8–5.5-V range. | Not suitable for intermittent-sampling systems due to absence of shutdown and higher static current. | Choose OPA316IDBVR for high-speed signal chains requiring >1-MHz bandwidth and sub-mV offset, where continuous operation is acceptable. |
Compared with TLV9001IDBVR and OPA316IDBVR, the LMV981IDBVRE4 uniquely balances micropower operation (100 µA), integrated shutdown (0.156 µA), and rail-to-rail I/O in a 6-pin SOT-23 - making it optimal for battery-gauging, energy harvesting, and always-on sensor nodes where power gating is mandatory.
Availability
LMV981IDBVRE4 is available at Aetrix Electronics and suitable for energy metering, automotive cabin electronics, and portable audio systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LMV981IDBVRE4 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog design and manufacturing excellence.
The LMV98x family targets ultra-low-voltage, low-power signal conditioning in portable, industrial, and automotive applications - emphasizing rail-to-rail operation, shutdown capability, and extended temperature performance from −40°C to 125°C.
FAQ
What is the maximum output current capability of the LMV981IDBVRE4 at 1.8-V supply?
The LMV981IDBVRE4 can source up to 4 mA and sink up to 7 mA when operating from a 1.8-V supply, as specified in the Electrical Characteristics table under "Output Short-Circuit Current" at TA = 25°C. This output drive strength supports direct interfacing with medium-impedance loads such as ADC input networks or LED indicators without external buffers.
Does the LMV981IDBVRE4 support true rail-to-rail input common-mode range?
Yes, the LMV981IDBVRE4 supports a common-mode input voltage range (VICR) from VCC− − 0.2 V to VCC+ + 0.2 V, meaning it operates 200 mV beyond both supply rails. This is confirmed in the datasheet's Electrical Characteristics tables across 1.8-V, 2.7-V, and 5-V conditions - enabling direct connection to ground-referenced sensors without external biasing resistors.
What is the typical turn-on time from shutdown for the LMV981IDBVRE4?
The typical turn-on time from shutdown for the LMV981IDBVRE4 is 8.4 µs when operating from a 5-V supply, as measured in the Electrical Characteristics table. At 1.8 V, the turn-on time increases to 19 µs, and at 2.7 V it is 12.5 µs - all values reflect the time required for output to settle within 10 mV of final value after SHDN transitions high.
Is the LMV981IDBVRE4 pin-compatible with other members of the LMV98x family?
No, the LMV981IDBVRE4 (SOT-23-6) is not pin-compatible with the LMV982 dual op-amp (MSOP-10) or LMV981 variants in SC-70 (DCK) or QFN (RUG) packages. Pinout differs across packages: only the SOT-23-6 (DBV) variant shares identical pin assignments with LMV981IDBVR and LMV981IDBVTE4 - confirmed by TI's Package Drawing DBV and top-view schematics.
What is the thermal performance of the LMV981IDBVRE4 in SOT-23-6 package?
The LMV981IDBVRE4 in SOT-23-6 (DBV) package has a junction-to-ambient thermal resistance (θJA) of 165°C/W, as specified in the Absolute Maximum Ratings table. This value assumes standard JEDEC 2-layer board conditions; actual board layout, copper area, and airflow will affect real-world junction temperature rise under continuous 100-µA operation.
LMV981IDBVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- 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-23-6
LMV981IDBVRE4 FAQ
1.How can I place an order for LMV981IDBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV981IDBVRE4 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 LMV981IDBVRE4 reliable?
The price and inventory of LMV981IDBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV981IDBVRE4 is usually 5 days.
3.What payment methods are accepted for LMV981IDBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV981IDBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV981IDBVRE4?
LMV981IDBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV981IDBVRE4 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 LMV981IDBVRE4?
For technical support, including LMV981IDBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV981IDBVRE4 requirements.
6.How does Aetrix verify that LMV981IDBVRE4 is sourced from the original manufacturer or authorized distributors?
All LMV981IDBVRE4 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 LMV981IDBVRE4 meets industry standards.
7.What is the process for return or replacement of LMV981IDBVRE4?
All LMV981IDBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV981IDBVRE4, 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 LMV981IDBVRE4 part is unused and in its original packaging.
Return procedure for LMV981IDBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV981IDBVRE4 Tags
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