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Texas Instruments LMV821IDBVRG4
- Part No.:
- LMV821IDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821IDBVRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,130
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Product details
Overview
LMV821IDBVRG4 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 battery-powered sensors and medical wearables.
For engineers reviewing the LMV821IDBVRG4 datasheet, LMV821IDBVRG4 pinout, LMV821IDBVRG4 application, or LMV821IDBVRG4 equivalent, key selection considerations include its –40°C to 125°C operating range, SOT-23-5 package footprint, rail-to-rail output swing down to 100 mV from rails (at 2 kΩ load), input common-mode range extending to ground, and absence of crossover distortion in audio-grade amplification stages.
Technical Context
The LMV821IDBVRG4 employs a CMOS input stage with bipolar output stage, supporting single-supply operation from 2.5 V while maintaining rail-to-rail output swing and ground-sensing input capability. Its internal compensation ensures stability with capacitive loads up to 22 pF and resistive loads as low as 600 Ω.
Designed for cost-sensitive, low-power systems, it achieves higher bandwidth and faster slew rate than the LMV3xx family while retaining similar quiescent current and rail-to-rail output architecture - making it suitable for sensor buffering, active filtering, and transimpedance amplification where thermal and layout constraints limit PCB area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct integration with Li-ion, coin-cell, and 3.3 V logic rails without level-shifting. |
| Gain Bandwidth Product | 5.5 MHz typ at 5 V - enables stable closed-loop gain ≥10 at 500 kHz for anti-aliasing or reconstruction filters. |
| Slew Rate | 1.9 V/μs typ at 5 V - supports clean 100-kHz, 1-Vpp sine wave output without slew-induced distortion. |
| Input Offset Voltage | 1 mV typ, 5.5 mV max (–40°C to 125°C) - ensures ≤1.5 mV error in 1× gain sensor interfaces over full temp range. |
| Output Swing | 0.1 V from rail (low), 0.15 V from rail (high) at 5 V/2 kΩ - delivers >4.7 Vpp dynamic range into moderate loads. |
| Supply Current | 0.3 mA typ at 5 V - allows 10+ channels per mA in multi-sensor data acquisition modules. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor IoT node environments. |
Pinout & Package
SOT-23-5 package (DBV) with 1.6 mm × 2.9 mm footprint and 0.95 mm height - compatible with standard pick-and-place equipment and reflow profiles for lead-free assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; drives loads ≥600 Ω directly without external buffers. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; accepts signals from 0 V to VCC, including ground-referenced sources. |
| 3 (GND/VCC−) | Ground / negative supply | Single-supply reference point; must be low-impedance path to minimize noise coupling in mixed-signal layouts. |
| 4 (IN+) | Non-inverting input | Matches IN− in bias current and offset; enables unity-gain follower or high-Z sensor interface configurations. |
| 5 (VCC+) | Positive supply | Accepts 2.5–5.5 V; decoupling capacitor (0.1 μF) required within 2 mm for stability at full bandwidth. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates audible artifacts and harmonic generation in audio and precision analog front-ends. |
| Rail-to-rail output | Maximizes dynamic range in low-voltage systems - e.g., 4.7 Vpp output from 5 V supply into 2 kΩ. |
| Input common-mode range includes ground | Enables direct interfacing with 0 V–referenced sensors (thermistors, bridge outputs) without level-shifting circuitry. |
| Low 0.3 mA supply current at 5 V | Supports always-on operation in battery-powered devices with >1-year runtime on CR2032 cells (typical). |
| Specified for –40°C to 125°C | Validated for automotive engine control units, industrial PLC I/O modules, and outdoor environmental monitors. |
Applications
| Portable Medical Sensors | Automotive Cabin Sensors |
|---|---|
Use Scenario: Amplifying microvolt-level ECG electrode signals in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier front-end with DC-coupled input and rail-to-rail output driving ADC reference buffer. Use Value: Input common-mode range to ground enables direct connection to dry-electrode biopotential sources; 5.5 MHz GBW supports 100-Hz high-pass filtering without phase lag. | Use Scenario: Signal conditioning for cabin temperature and humidity sensors in HVAC control modules. IC Role / Device Role / Timing Role: Low-drift buffer and level-shifter between NTC thermistor networks and 12-bit SAR ADC inputs. Use Value: 1.9 V/μs slew rate prevents settling delay in multiplexed sensor readouts; 0.3 mA ICC extends module sleep-mode battery life. |
| Industrial Process Transmitters | Smart Energy Metering |
Use Scenario: Isolated 4–20 mA loop transmitter output stage with voltage-to-current conversion. IC Role / Device Role / Timing Role: Precision op-amp in Howland current source configuration, referenced to isolated ground. Use Value: Rail-to-rail output ensures full 20 mA compliance across 0–24 V loop supply; 5.5 MHz GBW maintains stability with 10 nF feedback capacitance. | Use Scenario: Anti-aliasing filter and current-sense amplifier in polyphase electricity meter ASIC interfaces. IC Role / Device Role / Timing Role: Dual-role device: first stage for shunt-based current sensing, second stage for line-voltage scaling. Use Value: 0.1 V output headroom at 5 V enables accurate 16-bit ADC utilization; –40°C to 125°C rating covers meter enclosure thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV821DBVR | Same silicon, rated for –40°C to 85°C only; lower temperature grade with identical electrical specs at 25°C. | Not suitable for under-hood or extended-temperature industrial deployments requiring 125°C operation. | Select LMV821DBVR only for consumer-grade portable devices with ambient temperature <85°C. |
| TLV9001IDBVR | Higher 1-MHz GBW, 0.15 V/μs slew rate, 0.17 mA ICC at 5 V; rail-to-rail I/O; same SOT-23-5 package. | Better suited for ultra-low-power, low-bandwidth sensor nodes where 1-MHz response suffices and 0.17 mA ICC extends battery life. | Choose TLV9001IDBVR when system bandwidth demand ≤1 MHz and supply current budget <0.25 mA is critical. |
Compared with LMV821DBVR, the LMV821IDBVRG4 adds extended temperature qualification without sacrificing speed or power; versus TLV9001IDBVR, it trades 4.5 MHz bandwidth and 1.75 V/μs extra slew rate for 0.13 mA higher supply current - favoring performance-critical signal chains over extreme energy efficiency.
Availability
LMV821IDBVRG4 is available at Aetrix Electronics and suitable for portable medical sensors, automotive cabin sensors, and industrial process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV821IDBVRG4 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 for industrial, automotive, and personal electronics markets.
The LMV8xx family targets low-voltage, low-power operational amplifier applications - specifically designed for space-constrained, battery-operated systems needing rail-to-rail output swing, ground-sensing inputs, and robust performance across –40°C to 125°C.
FAQ
What is the maximum supply voltage for LMV821IDBVRG4?
The absolute maximum supply voltage for LMV821IDBVRG4 is 5.5 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. For reliable long-term performance, TI recommends staying within the recommended operating range of 2.5 V to 5 V - where all electrical characteristics, including gain bandwidth and output swing, are fully characterized and guaranteed across –40°C to 125°C.
Does LMV821IDBVRG4 support true rail-to-rail input?
LMV821IDBVRG4 does not support rail-to-rail input - its input common-mode voltage range extends from VCC– (ground in single-supply use) to VCC+ – 0.3 V, as confirmed in the 5-V Electrical Characteristics table. However, it does provide rail-to-rail output swing (within 100–150 mV of each rail under typical loads), and the inclusion of ground in the input range makes it suitable for interfacing with ground-referenced sensors without level-shifting circuitry.
Is LMV821IDBVRG4 pin-compatible with LMV821DBVR?
Yes, LMV821IDBVRG4 is pin-compatible with LMV821DBVR - both use the SOT-23-5 (DBV) package with identical pinout: Pin 1 = OUT, Pin 2 = IN−, Pin 3 = GND/VCC−, Pin 4 = IN+, Pin 5 = VCC+. The only functional difference is temperature rating: LMV821IDBVRG4 is qualified for –40°C to 125°C, while LMV821DBVR is rated for –40°C to 85°C. No PCB layout changes are required when upgrading from DBVR to IDBVRG4 for extended-temperature designs.
What is the typical output current drive capability of LMV821IDBVRG4?
At 5 V supply and 25°C, LMV821IDBVRG4 delivers ±20 mA output current (sourcing and sinking) into resistive loads, as specified in the 5-V Electrical Characteristics table. Under heavier loads (e.g., 600 Ω), output swing degrades to within ~170 mV of each rail. This drive strength supports direct interfacing with medium-impedance DAC buffers, LED drivers, and analog multiplexer inputs without external gain stages.
Why is LMV821IDBVRG4 marked "Not Recommended for New Designs"?
LMV821IDBVRG4 is marked "Not Recommended for New Designs" because Texas Instruments has discontinued its production and no longer offers long-term supply assurance. While existing inventory remains available through authorized distributors and Aetrix Electronics, TI advises new designs to migrate to functionally similar, actively supported alternatives such as TLV9001IDBVR or OPA320AIDBVR - which offer improved specifications, active lifecycle management, and full documentation support.
LMV821IDBVRG4 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV821IDBVRG4 FAQ
1.How can I place an order for LMV821IDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821IDBVRG4 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 LMV821IDBVRG4 reliable?
The price and inventory of LMV821IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821IDBVRG4 is usually 5 days.
3.What payment methods are accepted for LMV821IDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821IDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821IDBVRG4?
LMV821IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821IDBVRG4 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 LMV821IDBVRG4?
For technical support, including LMV821IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821IDBVRG4 requirements.
6.How does Aetrix verify that LMV821IDBVRG4 is sourced from the original manufacturer or authorized distributors?
All LMV821IDBVRG4 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 LMV821IDBVRG4 meets industry standards.
7.What is the process for return or replacement of LMV821IDBVRG4?
All LMV821IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV821IDBVRG4, 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 LMV821IDBVRG4 part is unused and in its original packaging.
Return procedure for LMV821IDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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