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Texas Instruments LMV821IDCKRE4
- Part No.:
- LMV821IDCKRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV821IDCKRE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,145
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Product details
Overview
LMV821IDCKRE4 from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.5 V to 5.5 V), low-power applications. It delivers 5.5 MHz gain bandwidth, 1.9 V/μs slew rate, and 0.3 mA typical supply current at 5 V - enabling precision signal conditioning in space-constrained portable electronics such as sensor front-ends and battery-powered instrumentation.
For engineers reviewing the LMV821IDCKRE4 datasheet, LMV821IDCKRE4 pinout, LMV821IDCKRE4 application, or LMV821IDCKRE4 equivalent, key selection criteria include its SC-70-5 package footprint, –40°C to 125°C operating range, rail-to-rail output swing, input common-mode range extending to ground, and compatibility with 2.5-V/2.7-V/5-V supply rails in compact analog signal chains.
Technical Context
The LMV821IDCKRE4 implements a CMOS input stage with rail-to-rail output capability, supporting true single-supply operation down to 2.5 V. Its architecture eliminates crossover distortion and maintains stable phase margin (>64°) across load conditions (600 Ω to 100 kΩ) and supply voltages (2.7 V to 5 V).
It features a wide input common-mode voltage range (–0.2 V to VCC+ – 0.3 V), high CMRR (≥72 dB), and robust PSRR (≥75 dB), making it suitable for noisy environments where precision DC-coupled amplification is required without external level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - enables direct interface with Li-ion, 3.3-V, and 5-V logic domains without regulation overhead. |
| Gain Bandwidth Product | 5.5 MHz typ at 5 V - supports stable closed-loop gain up to ~55 at 100 kHz for sensor signal amplification. |
| Slew Rate | 1.9 V/μs typ at 5 V - ensures faithful reproduction of fast transients in pulse-amplifier or active-filter stages. |
| Input Offset Voltage | 1 mV typ, 5.5 mV max (–40°C to 125°C) - minimizes DC error in precision transducer interfaces. |
| Output Swing | Rail-to-rail: within 100 mV of VCC+ and 170 mV of GND at 5 V/2 kΩ - maximizes dynamic range in single-supply data acquisition. |
| Supply Current | 0.3 mA typ at 5 V - allows integration into always-on, ultra-low-power monitoring nodes. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial control, and extended-environment applications. |
Pinout & Package
LMV821IDCKRE4 is housed in the SC-70 (DCK) 5-pin surface-mount package - measuring 2.0 mm × 2.1 mm × 0.9 mm - designed for high-density PCB layouts in portable and wearable systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; drives loads ≥2 kΩ directly without buffering. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; accepts signals from 0 V to VCC+ – 0.3 V. |
| 3 (GND/VCC−) | Ground / negative supply | Single-supply reference point; must be low-impedance for noise immunity. |
| 4 (IN+) | Non-inverting input | High-impedance CMOS node; supports input common-mode down to ground. |
| 5 (VCC+) | Positive supply | Accepts 2.5 V to 5.5 V; bypass capacitor (0.1 μF) required near pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Ensures clean small-signal linearity across zero-crossing - critical for audio preamps and precision AC-coupled sensors. |
| Rail-to-rail output | Delivers full supply utilization (e.g., 0.1 V to 4.9 V at 5 V), increasing ADC effective resolution by >1 LSB. |
| Input common-mode range includes ground | Enables direct connection to grounded sensors (e.g., thermistors, bridge outputs) without level-shifting components. |
| Ultra-small SC-70-5 package | Reduces board area by ~50% vs. SOT-23-5 - ideal for wearables, hearing aids, and miniaturized IoT edge nodes. |
| Low 0.3 mA supply current | Extends battery life in coin-cell-powered devices; supports duty-cycled operation with fast wake-up response. |
Applications
| Portable Medical Sensors | Automotive Cabin Sensors |
|---|---|
Use Scenario: Amplifying low-level signals from ECG electrodes or glucose biosensors in handheld diagnostic tools. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving 12-bit SAR ADC inputs. Use Value: Input offset ≤5.5 mV and rail-to-rail swing preserve microvolt-level signal integrity without gain-stage headroom loss. | Use Scenario: Signal conditioning for cabin temperature, humidity, and CO₂ sensors in automotive HVAC modules. IC Role / Device Role / Timing Role: Low-drift, high-PSRR buffer interfacing resistive/humidity sensors to microcontroller ADCs. Use Value: –40°C to 125°C rating and 75 dB PSRR ensure stable operation amid engine-bay thermal cycling and power rail noise. |
| Industrial Process Monitoring | Wearable Biometric Front-Ends |
Use Scenario: Amplifying 4–20 mA loop receiver outputs or RTD bridge signals in PLC analog input modules. IC Role / Device Role / Timing Role: Low-power, precision op-amp in isolated signal chain with 2.5-V microcontroller interface. Use Value: 2.5-V minimum supply and 0.3 mA ICC enable direct use with low-voltage isolated DC-DC converters. | Use Scenario: Front-end amplification of photodiode or PPG signals in smartwatches and fitness trackers. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail amplifier driving ADC in ultra-thin form factor designs. Use Value: SC-70-5 footprint saves PCB area; 45 nV/√Hz input noise preserves SNR in weak optical signal detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV821DCKR | Same SC-70-5 package and electrical specs, but rated for –40°C to 85°C only. | Not suitable for under-hood or extended-temperature industrial deployments. | Select LMV821DCKR only if ambient operating temperature remains ≤85°C and cost sensitivity outweighs thermal margin. |
| TLV9001IDCKR | Lower 0.15 mA supply current, 1 MHz GBW, and rail-to-rail I/O - optimized for ultra-low-power, lower-bandwidth uses. | Lacks the 5.5 MHz bandwidth needed for fast pulse or filter applications requiring LMV821IDCKRE4's speed. | Choose TLV9001IDCKR when system bandwidth <200 kHz and sub-0.2 mA ICC is mandatory; retain LMV821IDCKRE4 for >100 kHz signal fidelity. |
Compared with LMV821DCKR, LMV821IDCKRE4 adds 40°C higher max operating temperature and guaranteed performance over that extended range; versus TLV9001IDCKR, it trades 80% higher supply current for >5× greater bandwidth and superior slew rate - making it the preferred choice for precision, medium-speed analog signal paths in harsh environments.
Availability
LMV821IDCKRE4 is available at Aetrix Electronics and suitable for portable medical diagnostics, automotive cabin sensing, and industrial process monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV821IDCKRE4 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 personal electronics markets.
The LMV8xx family was engineered as a low-voltage, low-power op-amp series targeting space-constrained, battery-operated, and thermally demanding applications - emphasizing rail-to-rail output, ground-sensing inputs, and robust AC performance at minimal quiescent current.
FAQ
What is the maximum operating temperature for LMV821IDCKRE4?
The LMV821IDCKRE4 is specified for continuous operation from –40°C to +125°C. This extended temperature range is validated per TI's LMV8xxI characterization and makes LMV821IDCKRE4 suitable for under-hood automotive, industrial control, and high-reliability embedded applications where thermal margins exceed standard commercial-grade op-amps.
Does LMV821IDCKRE4 support true single-supply operation with input referenced to ground?
Yes, LMV821IDCKRE4 supports true single-supply operation with an input common-mode voltage range extending to ground (–0.2 V to VCC+ – 0.3 V). This allows direct interfacing with grounded sensors like thermistors, strain gauges, or bridge circuits without external level-shifting components - a key design advantage confirmed in the LMV8xxI 2.7-V and 5-V electrical characteristics tables.
What package type and pin count does LMV821IDCKRE4 use?
LMV821IDCKRE4 uses the SC-70 (DCK) 5-pin surface-mount package, as explicitly stated in TI's ordering information and package drawings. The DCK package measures 2.0 mm × 2.1 mm × 0.9 mm and is distinct from the SOT-23-5 (DBV) variant - ensuring correct PCB layout and assembly for this specific orderable part.
Is LMV821IDCKRE4 still recommended for new designs?
No - TI marks LMV821IDCKRE4 as "Not Recommended for New Designs" in its official documentation. While fully functional and supported for existing production, designers should evaluate newer alternatives like the TLV9001 or OPA320 series for improved power efficiency, bandwidth, or enhanced specifications in greenfield projects.
What is the typical supply current of LMV821IDCKRE4 at 5 V?
The typical supply current of LMV821IDCKRE4 is 0.3 mA at VCC+ = 5 V and TA = 25°C, as documented in the "Features" section and confirmed in the 5-V Electrical Characteristics table under ICC for LMV821. This value holds across the full –40°C to 125°C range, with a maximum of 0.6 mA at temperature extremes.
LMV821IDCKRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.9V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 300µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LMV821IDCKRE4 FAQ
1.How can I place an order for LMV821IDCKRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821IDCKRE4 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 LMV821IDCKRE4 reliable?
The price and inventory of LMV821IDCKRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821IDCKRE4 is usually 5 days.
3.What payment methods are accepted for LMV821IDCKRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821IDCKRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821IDCKRE4?
LMV821IDCKRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821IDCKRE4 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 LMV821IDCKRE4?
For technical support, including LMV821IDCKRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821IDCKRE4 requirements.
6.How does Aetrix verify that LMV821IDCKRE4 is sourced from the original manufacturer or authorized distributors?
All LMV821IDCKRE4 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 LMV821IDCKRE4 meets industry standards.
7.What is the process for return or replacement of LMV821IDCKRE4?
All LMV821IDCKRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV821IDCKRE4, 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 LMV821IDCKRE4 part is unused and in its original packaging.
Return procedure for LMV821IDCKRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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