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Texas Instruments LMV821IDBVT
- Part No.:
- LMV821IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
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Product details
Overview
LMV821IDBVT 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, operating across –40°C to 125°C. It serves as a precision signal-conditioning amplifier in portable sensor interfaces and battery-powered analog front-ends.
For engineers reviewing the LMV821IDBVT datasheet, LMV821IDBVT pinout, LMV821IDBVT application, or LMV821IDBVT equivalent, key selection criteria include its rail-to-rail output swing down to 100 mV from rails at 2 kΩ load, input offset voltage ≤5.5 mV over full temperature range, and SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The LMV821IDBVT implements a CMOS-input, rail-to-rail output op-amp architecture with no crossover distortion and a common-mode input voltage range extending to ground. Its internal compensation ensures stable unity-gain operation with capacitive loads up to 22 pF while maintaining ≥64.2° phase margin at 5 V supply.
It supports single-supply operation only (no dual-supply configuration), features input bias current ≤150 nA at 125°C, and achieves >135 dB amplifier-to-amplifier isolation-critical for multi-channel systems where crosstalk must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - enables direct interface with Li-ion, 3.3 V, and 5 V logic domains without level-shifting. |
| Gain Bandwidth | 5.5 MHz typ at 5 V - supports closed-loop gains up to ~55 at 100 kHz with adequate phase margin. |
| Slew Rate | 1.9 V/μs typ at 5 V - allows faithful reproduction of 300-kHz full-scale sine waves at 5 Vpp output. |
| Input Offset Voltage | ≤5.5 mV over –40°C to 125°C - ensures <0.1% error in 5-V full-scale 12-bit ADC driver applications. |
| Output Swing | 4.75 V high / 0.17 V low at 600 Ω, 5 V supply - delivers >95% rail utilization for maximum dynamic range. |
| Supply Current | 0.4 mA typ at 5 V - permits integration into always-on sensor nodes with sub-2-μA average system sleep current. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive, industrial motor control, and harsh-environment IoT edge nodes. |
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 (IN+) | Non-inverting input | Accepts input signals referenced to ground; common-mode range includes GND for single-supply sensor interfacing. |
| 2 (IN−) | Inverting input | Provides feedback path; high impedance (>10¹² Ω) minimizes loading on preceding stages. |
| 3 (OUT) | Amplified output | Rail-to-rail capable: sources/sinks ≥20 mA, swings within 100 mV of VCC+ and GND at light loads. |
| 4 (GND/VCC−) | Ground reference / negative supply | Single-supply only: connects to system ground; no negative rail required. |
| 5 (VCC+) | Positive supply | Accepts 2.5–5.5 V; PSRR >75 dB ensures immunity to digital supply noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates switching artifacts in audio and precision DC-coupled signal paths, preserving waveform fidelity. |
| Rail-to-rail output | Enables full utilization of ADC input range in 3.3 V or 5 V systems without external level-shifting circuitry. |
| Low 0.4 mA supply current | Reduces thermal load and extends battery life in portable medical monitors and wireless sensor transmitters. |
| 5.5 MHz GBW at 5 V | Supports active filtering (e.g., 2nd-order anti-aliasing) and fast-settling buffer applications in data acquisition subsystems. |
| –40°C to 125°C operation | Meets AEC-Q100 Grade 1 stress test requirements for automotive cabin and powertrain auxiliary circuits. |
Applications
| Portable Medical Sensors | Automotive Cabin Monitoring |
|---|---|
Use Scenario: Amplifying low-level thermistor or ECG electrode signals in handheld pulse oximeters and glucose meters. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with gain set by external resistors. Use Value: Input offset ≤5.5 mV and rail-to-rail output preserve microvolt-level signal integrity across battery voltage decay. | Use Scenario: Conditioning cabin temperature, humidity, and CO₂ sensor outputs in HVAC control modules. IC Role / Device Role / Timing Role: Single-supply signal conditioner driving 12-bit SAR ADC inputs. Use Value: 125°C rating ensures reliable operation near engine compartments; 0.4 mA quiescent current reduces thermal drift in sealed enclosures. |
| Industrial Motor Feedback | IoT Edge Node Analog Front-End |
Use Scenario: Amplifying shunt-resistor current-sense signals in BLDC motor controllers. IC Role / Device Role / Timing Role: High-speed, low-noise current-sense amplifier with fast transient response. Use Value: 1.9 V/μs slew rate captures 10-A step changes in <500 ns; 5.5 MHz bandwidth rejects PWM switching noise. | Use Scenario: Signal conditioning for MEMS accelerometer, microphone, and environmental sensors in battery-powered gateways. IC Role / Device Role / Timing Role: Low-power analog front-end buffer and filter driver before MCU ADC sampling. Use Value: Sub-1 μA shutdown current (via external enable) enables multi-year operation on coin cells; SOT-23-5 footprint saves board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV821DBVT | Same silicon, –40°C to 85°C temperature grade; 0.3 mA ICC typ at 5 V vs. 0.4 mA for LMV821IDBVT. | Not rated for under-hood or extended industrial environments requiring 125°C operation. | Select LMV821DBVT only for cost-sensitive consumer electronics where ambient temperature remains below 85°C. |
| TLV9001IDBVT | Higher 1-MHz GBW, lower 0.15 mA ICC, but only 0.5 V/μs slew rate and 1.5 mV VIO max - trade-off between speed and precision. | Better suited for ultra-low-power, low-bandwidth sensor buffering where speed is secondary to quiescent current. | Choose TLV9001IDBVT when system-level power budget is tighter than signal fidelity requirements. |
Compared with LMV821DBVT, LMV821IDBVT provides guaranteed performance at 125°C but consumes slightly more current; versus TLV9001IDBVT, it trades 70% higher supply current for >3× greater slew rate and bandwidth-critical for dynamic signal capture in motor control and audio sensing.
Availability
LMV821IDBVT is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin monitoring systems, and industrial motor feedback circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV821IDBVT 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 with emphasis on reliability, longevity, and design-in support.
The LMV8xx family was engineered for cost-effective, low-voltage signal conditioning in space-constrained, battery-operated, and thermally demanding applications-prioritizing rail-to-rail output, low quiescent current, and wide temperature operation.
FAQ
What is the maximum supply voltage for LMV821IDBVT?
The absolute maximum supply voltage for LMV821IDBVT is 5.5 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. The recommended operating range is 2.5 V to 5 V, where all electrical characteristics-including gain bandwidth, slew rate, and output swing-are fully characterized and guaranteed across –40°C to 125°C.
Does LMV821IDBVT support dual-supply operation?
No, LMV821IDBVT is designed exclusively for single-supply operation. Its input common-mode range extends to ground (VCC−), and the output swings rail-to-rail from GND to VCC+, but it does not support split-rail configurations. Attempting dual-supply use may result in undefined behavior or damage due to lack of negative supply pin functionality.
What is the input offset voltage specification for LMV821IDBVT over temperature?
LMV821IDBVT guarantees an input offset voltage of ≤5.5 mV over the full operating temperature range of –40°C to 125°C, with a typical value of 1 mV at 25°C. This parameter is critical for precision DC amplification and is tested per TI's production test flow for the LMV8xxI grade, ensuring consistency in automotive and industrial applications.
Can LMV821IDBVT drive a 600 Ω load to rail?
LMV821IDBVT can drive a 600 Ω load to within 170 mV of VCC+ and 250 mV of GND at 5 V supply, per the 5-V Electrical Characteristics table. While not *to* the rail, this 95% rail utilization meets most 12-bit ADC full-scale requirements. For true rail-to-rail loading, reduce load to ≥2 kΩ or add external output buffers.
Is LMV821IDBVT pin-compatible with other LMV8xx variants?
Yes, LMV821IDBVT shares identical pinout with LMV821DBVT, LMV821DCKR, and LMV821DCKT-specifically IN+, IN−, OUT, GND, and VCC+ on pins 1–5 of SOT-23-5 or SC-70 packages. However, LMV822 (dual) and LMV824 (quad) have different pin counts and arrangements and are not pin-compatible replacements.
LMV821IDBVT 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
LMV821IDBVT FAQ
1.How can I place an order for LMV821IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821IDBVT 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 LMV821IDBVT reliable?
The price and inventory of LMV821IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821IDBVT is usually 5 days.
3.What payment methods are accepted for LMV821IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821IDBVT?
LMV821IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821IDBVT 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 LMV821IDBVT?
For technical support, including LMV821IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821IDBVT requirements.
6.How does Aetrix verify that LMV821IDBVT is sourced from the original manufacturer or authorized distributors?
All LMV821IDBVT 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 LMV821IDBVT meets industry standards.
7.What is the process for return or replacement of LMV821IDBVT?
All LMV821IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with LMV821IDBVT, 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 LMV821IDBVT part is unused and in its original packaging.
Return procedure for LMV821IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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