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Texas Instruments LMV981IDCKRE4
- Part No.:
- LMV981IDCKRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LMV981IDCKRE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,175
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Product details
Overview
LMV981IDCKRE4 from Texas Instruments is a single-channel, 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 quiescent current per amplifier, 4-mV max input offset voltage, and shutdown capability with 0.156-µA standby current. It targets low-power portable systems including battery monitoring and supply-current sensing circuits.
For engineers reviewing the LMV981IDCKRE4 datasheet, LMV981IDCKRE4 pinout, LMV981IDCKRE4 application, or LMV981IDCKRE4 equivalent, key selection criteria include its 1.8-V minimum supply, SC-70-6 package footprint, rail-to-rail output swing (80 mV from rail at 600-Ω load), and fast 8.4-µs wake-up time from shutdown-critical for energy-constrained sensor front-ends and portable instrumentation.
Technical Context
The LMV981IDCKRE4 employs a Class AB output stage with internal bias control to sustain rail-to-rail output swing under load while maintaining low quiescent current. Its input common-mode range extends 200 mV beyond both supply rails, enabling direct sensing of signals near ground or VCC in single-supply configurations.
Shutdown functionality is implemented via a dedicated SHDN pin requiring ≥4.2 V (at 5 V supply) or ≥1.9 V (at 2.7 V) to enable; turn-on time is specified at 8.4 µs (5 V), 12.5 µs (2.7 V), and 19 µs (1.8 V), confirming supply-voltage-dependent wake-up latency critical for duty-cycled applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - supports single-cell Li-ion (2.7–4.2 V) and two-cell alkaline/NiMH (2.4–3.2 V) battery systems without level shifting. |
| Gain Bandwidth Product | 1.4 MHz - enables stable unity-gain buffer or gain-of-10 amplification up to ~140 kHz in sensor signal conditioning. |
| Quiescent Current | 100 µA per amplifier - allows continuous operation for >1 year on a 200-mAh coin cell in always-on monitoring nodes. |
| Input Offset Voltage | Max 4 mV at 25°C - ensures ≤0.4% error in 1-V full-scale analog front-ends without trimming. |
| Rail-to-Rail Output Swing | 80 mV from rail into 600 Ω at 1.8 V - preserves >95% dynamic range for ADC drivers in ultra-low-voltage systems. |
| Shutdown Current | 0.156 µA typical at 1.8 V - reduces power by 640× versus active mode, enabling microamp-level sleep states. |
| Turn-On Time from Shutdown | 8.4 µs at 5 V - permits rapid reactivation for burst-mode sampling without missing critical transients. |
Pinout & Package
LMV981IDCKRE4 is housed in a 6-pin SC-70 (DCK) package, measuring 2.0 mm × 1.25 mm × 0.9 mm, with 0.65-mm lead pitch and moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Differential input node; accepts signals up to 200 mV beyond VCC−/GND and VCC+ rails. |
| 2 (IN+) | Non-Inverting Input | High-impedance input (65 nA bias current); supports direct connection to resistive sensors or voltage dividers. |
| 3 (VCC−/GND) | Negative Supply / Ground | Reference return path for single-supply operation; must be low-impedance to minimize noise coupling. |
| 4 (VCC+) | Positive Supply | Accepts 1.8–5 V; decoupling capacitor required within 1 cm for stability under load switching. |
| 5 (SHDN) | Shutdown Control | Active-high logic input; pulls low to reduce supply current to 0.156 µA; requires ≥4.2 V to enable at 5 V supply. |
| 6 (OUT) | Amplifier Output | Capable of sourcing 80 mA / sinking 58 mA at 5 V; drives 600-Ω loads with <80 mV headroom from rails. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range: input common-mode extends 200 mV beyond rails; output swings to within 80 mV of rails into 600 Ω. |
| Ultra-low quiescent current | 100 µA per amplifier at 1.8 V allows integration into multi-year battery-powered IoT endpoints without compromising signal fidelity. |
| Fast shutdown wake-up | 8.4 µs turn-on time at 5 V supports microsecond-scale duty cycling in energy-harvesting sensor nodes. |
| Wide temperature range | Specified from −40°C to +125°C - qualified for under-hood automotive and industrial metering environments. |
| Robust ESD protection | 2000-V HBM rating ensures reliability during board handling and field deployment in unshielded enclosures. |
Applications
| Industrial Energy Metering | Portable Audio Signal Path |
|---|---|
Use Scenario: Precision current sensing in smart electricity meters using shunt resistors and sigma-delta ADCs. IC Role / Device Role / Timing Role: Low-offset, rail-to-rail op-amp configured as a current-sense amplifier driving the ADC input. Use Value: 4-mV max VIO and 1.4-MHz GBW ensure accurate sub-ampere measurement resolution across 1.8–5-V supply variations. | Use Scenario: Line-level headphone driver in battery-powered MP3 players and Bluetooth earbuds. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output buffer amplifying DAC output to 32-Ω headphones. Use Value: 80-mA output drive and 80-mV rail margin at 1.8 V enable clean 1-VPP audio delivery without clipping. |
| Battery Voltage Monitoring | Optical Telecom Receiver Front-End |
Use Scenario: Real-time Li-ion cell voltage tracking in wearables and medical patches. IC Role / Device Role / Timing Role: High-impedance voltage follower feeding an ADC channel with minimal loading. Use Value: 65-nA input bias current prevents discharge errors; shutdown mode draws only 0.156 µA during sleep intervals. | Use Scenario: Transimpedance amplifier stage converting photodiode current to voltage in GPON ONU receivers. IC Role / Device Role / Timing Role: Low-noise, low-input-bias op-amp with 60-nV/√Hz input noise and 1.4-MHz bandwidth. Use Value: 60-nV/√Hz noise floor and 1.4-MHz GBW support high-SNR signal recovery from weak optical signals at 1.25 Gbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Lower GBW (1 MHz), higher VIO (max 4.5 mV), no shutdown pin; SC-70-5 package (5 pins vs. 6). | Lacks dedicated shutdown control; unsuitable for microamp-sleep architectures requiring fast wake-up. | Select when shutdown is unnecessary and cost sensitivity outweighs wake-up timing requirements. |
| TSV911ICT | Higher GBW (8 MHz), lower VIO (max 1.5 mV), shutdown pin present; same SC-70-6 footprint and pinout. | Delivers faster settling and lower offset but consumes 800 µA quiescent current - 8× higher than LMV981IDCKRE4. | Select when precision and speed dominate over battery life; verify PCB thermal design for higher dissipation. |
Compared with MCP6001T-E/OT and TSV911ICT, LMV981IDCKRE4 uniquely balances ultra-low power (100 µA), rail-to-rail operation, and integrated shutdown in a space-constrained SC-70-6 package-making it optimal for long-life, intermittently active sensor nodes where every microamp and millisecond matters.
Availability
LMV981IDCKRE4 is available at Aetrix Electronics and suitable for industrial energy metering, portable audio signal path, battery voltage monitoring, and optical telecom receiver front-end applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV981IDCKRE4 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, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The LMV98x series was designed specifically for ultra-low-voltage, low-power signal conditioning in portable and battery-operated equipment-emphasizing rail-to-rail performance, shutdown efficiency, and robustness across −40°C to +125°C.
FAQ
What is the maximum operating temperature range for LMV981IDCKRE4?
The LMV981IDCKRE4 is characterized for operation from −40°C to +125°C, meeting industrial and automotive under-hood requirements. This range is confirmed in the "recommended operating conditions" table of the official TI datasheet SLOS440H, with electrical parameters guaranteed across the full span.
Does LMV981IDCKRE4 support true rail-to-rail input common-mode range?
Yes, LMV981IDCKRE4 features a rail-to-rail input stage with common-mode voltage range extending 200 mV beyond both supply rails (VCC− − 0.2 V to VCC+ + 0.2 V). This is explicitly documented in the "electrical characteristics" tables for all supply voltages (1.8 V, 2.7 V, 5 V) in the TI datasheet SLOS440H.
What is the typical output drive capability of LMV981IDCKRE4 at 1.8 V supply?
At 1.8 V supply, LMV981IDCKRE4 can source up to 4 mA and sink up to 7 mA while maintaining rail-to-rail output swing. These values are specified in the "electrical characteristics" section of the TI datasheet SLOS440H under "Output short-circuit current" at TA = 25°C and VCC+ = 1.8 V.
Is LMV981IDCKRE4 pin-compatible with other members of the LMV98x family?
No-LMV981IDCKRE4 (SC-70-6) is not pin-compatible with LMV982 dual variants (MSOP-10/VSSOP-10) or LMV981 in SOT-23-6 (DBV) or QFN-8 (RUG) packages. Pin count, layout, and terminal assignments differ across packages; the SC-70-6 pinout is unique to DCK-packaged LMV981 devices.
How does the shutdown function behave at different supply voltages?
LMV981IDCKRE4 shutdown activation thresholds vary with supply: turn-on voltage is 4.2 V (min) at 5 V supply, 1.9 V at 2.7 V, and 1.0 V at 1.8 V. Turn-off voltage is fixed at 0.55 V (max) across all supplies. These values are specified in the "electrical characteristics" tables of TI datasheet SLOS440H.
LMV981IDCKRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- 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:
- SC-70-6
LMV981IDCKRE4 FAQ
1.How can I place an order for LMV981IDCKRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV981IDCKRE4 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 LMV981IDCKRE4 reliable?
The price and inventory of LMV981IDCKRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV981IDCKRE4 is usually 5 days.
3.What payment methods are accepted for LMV981IDCKRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV981IDCKRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV981IDCKRE4?
LMV981IDCKRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV981IDCKRE4 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 LMV981IDCKRE4?
For technical support, including LMV981IDCKRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV981IDCKRE4 requirements.
6.How does Aetrix verify that LMV981IDCKRE4 is sourced from the original manufacturer or authorized distributors?
All LMV981IDCKRE4 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 LMV981IDCKRE4 meets industry standards.
7.What is the process for return or replacement of LMV981IDCKRE4?
All LMV981IDCKRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV981IDCKRE4, 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 LMV981IDCKRE4 part is unused and in its original packaging.
Return procedure for LMV981IDCKRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV981IDCKRE4 Tags
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LM358DT
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LM358DR
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