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Texas Instruments LMV821DBVTE4
- Part No.:
- LMV821DBVTE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821DBVTE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,228
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Product details
Overview
LMV821DBVTE4 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 0.4 mA typical supply current at 5 V - enabling precision signal conditioning in space-constrained portable electronics such as cordless phones and PDAs.
For engineers reviewing the LMV821DBVTE4 datasheet, LMV821DBVTE4 pinout, LMV821DBVTE4 application, or LMV821DBVTE4 equivalent, key selection criteria include its SOT-23-5 package footprint, –40°C to 85°C operating range, rail-to-rail output swing down to 100 mV from rails (at 2 kΩ load), and absence of crossover distortion in audio and sensor front-end designs.
Technical Context
The LMV821DBVTE4 employs a CMOS input stage with rail-to-rail output stage, supporting input common-mode voltage down to ground and output swing within 100 mV of supply rails under 2 kΩ load. Its 5.5 MHz unity-gain bandwidth and 64.2° phase margin ensure stable operation with capacitive loads up to 22 pF when driving 600 Ω–100 kΩ loads.
Designed for single-supply operation, it features 72 dB CMRR and 75 dB PSRR at 5 V, with input offset voltage ≤4 mV over –40°C to 85°C and 0.5 μV/°C average drift - making it suitable for DC-coupled sensor amplification where offset stability matters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - supports direct integration into 3.3 V and 5 V systems without level-shifting. |
| Gain Bandwidth | 5.5 MHz typ at 5 V - enables stable closed-loop gain ≥10 at 500 kHz for anti-aliasing or active filtering. |
| Slew Rate | 1.9 V/μs typ at 5 V - supports 100 kHz full-power sine wave output at 1 Vpp without distortion. |
| Output Swing | 0.1 V from rail (high/low) at 2 kΩ - preserves dynamic range in low-voltage ADC driver stages. |
| Supply Current | 0.4 mA typ at 5 V - allows battery-powered operation for >1 year in always-on sensor nodes drawing <10 μA avg. |
| Input Offset Voltage | ≤4 mV max over –40°C to 85°C - ensures ≤20 mV error in 5× gain instrumentation paths without trimming. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and automotive cabin electronics. |
Pinout & Package
SOT-23-5 package (DBV): 2.9 mm × 1.6 mm × 1.15 mm body, gull-wing leads, 0.95 mm pitch - compatible with standard pick-and-place and reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | Accepts signals from 0 V to VCC; supports DC-coupled sensor interfaces with ground-referenced sources. |
| 2 (IN−) | Inverting input | Used for feedback network connection; high impedance (>10¹² Ω) minimizes loading on precision dividers. |
| 3 (OUT) | Amplifier output | Rail-to-rail capable: drives 600 Ω loads to within 170 mV of VCC and GND at 5 V. |
| 4 (GND/VCC−) | Ground / negative supply | Single-supply reference node; must be low-impedance to minimize PSRR degradation. |
| 5 (VCC+) | Positive supply | Accepts 2.5–5.5 V; internal regulation ensures consistent biasing across supply range. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Enables clean audio amplification and zero-crossing detection without notch errors in comparator-like configurations. |
| Rail-to-rail output | Maximizes signal swing in 3.3 V systems - delivers >3.1 Vpp into 2 kΩ, preserving SNR for 12-bit ADCs. |
| Low 0.4 mA supply current | Reduces thermal rise in dense layouts and extends battery life in portable medical sensors. |
| 5.5 MHz bandwidth at 5 V | Supports closed-loop gain of 11 with >500 kHz small-signal bandwidth for active filter design. |
| Input common-mode range includes ground | Allows direct interfacing with 0–2.5 V transducer outputs without level-shifting circuitry. |
Applications
| Portable Audio Preamp | Medical Sensor Signal Conditioning |
|---|---|
Use Scenario: Amplifying microphone or piezoelectric sensor output in Bluetooth headsets and hearing aids. IC Role / Device Role / Timing Role: Single-supply, low-noise preamplifier with rail-to-rail output driving codec inputs. Use Value: 42 nV/√Hz input noise and no crossover distortion preserve voice fidelity; 0.4 mA ICC enables multi-day battery life. | Use Scenario: Conditioning ECG electrode signals in wearable heart-rate monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with DC-coupled input and high CMRR. Use Value: 72 dB CMRR rejects power-line interference; rail-to-rail output maximizes dynamic range into 12-bit SAR ADCs. |
| Industrial Temperature Transmitter | Smart Home Motion Detector Front-End |
Use Scenario: Amplifying RTD or thermistor bridge outputs in HVAC controllers. IC Role / Device Role / Timing Role: Precision voltage follower and buffer for 4–20 mA loop drivers. Use Value: ≤4 mV VIO and 1 μV/°C drift minimize temperature measurement error; 5.5 V absolute max rating protects against transient overvoltage. | Use Scenario: Amplifying PIR sensor output before window-comparator detection in security lights. IC Role / Device Role / Timing Role: Low-power, high-input-impedance amplifier with fast settling for motion-triggered wake-up. Use Value: 1.9 V/μs slew rate ensures <1 μs response to step inputs; 0.4 mA ICC enables always-on sensing with coin-cell batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV321DBVR | Lower 1 MHz GBW, 0.25 mA ICC, same SOT-23-5 package and pinout. | Targeted at cost-sensitive, lower-bandwidth applications like simple comparators or LED drivers. | Select LMV321DBVR only if bandwidth <1 MHz suffices and supply current reduction is critical. |
| TLV9001IDBVR | Higher 1 MHz GBW, 0.15 mA ICC, rail-to-rail I/O, but specified only for –40°C to 125°C. | Optimized for automotive cabin modules requiring extended temperature qualification. | Choose TLV9001IDBVR when AEC-Q100 compliance or 125°C operation is mandatory. |
Compared with LMV321DBVR, LMV821DBVTE4 provides 5.5× higher bandwidth and 1.6× faster slew rate at modest current penalty; versus TLV9001IDBVR, it offers superior 5.5 MHz bandwidth and proven industrial temperature performance at lower cost, though without automotive qualification.
Availability
LMV821DBVTE4 is available at Aetrix Electronics and suitable for portable audio preamps, medical sensor signal conditioning, and industrial temperature transmitters requiring stable component supply and long-term obsolescence management.
Supply support for LMV821DBVTE4 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 broad portfolio coverage and deep application expertise.
The LMV8xx family was designed for low-voltage, low-power signal conditioning in space-constrained portable and industrial electronics - emphasizing rail-to-rail output, low quiescent current, and robust AC performance without crossover distortion.
FAQ
What is the maximum supply voltage rating for LMV821DBVTE4?
The LMV821DBVTE4 has an absolute maximum supply voltage of 5.5 V. Operation beyond this risks permanent damage. Recommended operating range is 2.5 V to 5 V per TI SLOS434I datasheet Section 6.1. This rating applies regardless of ambient temperature or load condition, and must be respected in both single- and dual-supply configurations.
Does LMV821DBVTE4 support rail-to-rail input operation?
No, LMV821DBVTE4 supports rail-to-rail *output* swing but not rail-to-rail *input*. Its input common-mode voltage range extends from VCC− (GND) to VCC+ − 0.3 V at 25°C, per Section 7.3 of the datasheet. For true rail-to-rail input capability, consider TI's TLV9001 or OPA316 families instead.
Is LMV821DBVTE4 pin-compatible with other LMV8xx variants?
LMV821DBVTE4 (SOT-23-5) is not pin-compatible with LMV822 (8-pin SOIC/DGK) or LMV824 (14-pin SOIC/PW). Within the LMV821 family, all SOT-23-5 versions (e.g., LMV821DBVR, LMV821DBVT) share identical pinout. However, SC-70-5 variants (DCK) use different pin numbering and are not mechanically or electrically interchangeable.
What is the typical output current drive capability of LMV821DBVTE4?
At 5 V supply, LMV821DBVTE4 delivers ±20 mA typical short-circuit output current (sourcing/sinking), with guaranteed minimum ±15 mA over –40°C to 85°C. Under 600 Ω load, it swings to within 170 mV of each rail while maintaining linearity - sufficient for driving ADC references or small relays directly.
Why is LMV821DBVTE4 marked "Not Recommended for New Designs"?
TI designated LMV821DBVTE4 as "Not Recommended for New Designs" (NRND) in 2016 due to newer alternatives like TLV9001 offering improved specs (lower noise, wider temp range, better PSRR) in the same SOT-23-5 package. LMV821DBVTE4 remains fully functional and supported for legacy production, with no announced discontinuance date as of latest TI packaging addendum.
LMV821DBVTE4 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:
- 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV821DBVTE4 FAQ
1.How can I place an order for LMV821DBVTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821DBVTE4 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 LMV821DBVTE4 reliable?
The price and inventory of LMV821DBVTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821DBVTE4 is usually 5 days.
3.What payment methods are accepted for LMV821DBVTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821DBVTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821DBVTE4?
LMV821DBVTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821DBVTE4 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 LMV821DBVTE4?
For technical support, including LMV821DBVTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821DBVTE4 requirements.
6.How does Aetrix verify that LMV821DBVTE4 is sourced from the original manufacturer or authorized distributors?
All LMV821DBVTE4 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 LMV821DBVTE4 meets industry standards.
7.What is the process for return or replacement of LMV821DBVTE4?
All LMV821DBVTE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV821DBVTE4, 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 LMV821DBVTE4 part is unused and in its original packaging.
Return procedure for LMV821DBVTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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