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Texas Instruments LMV821QDBVRQ1
- Part No.:
- LMV821QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821QDBVRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,505
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Product details
Overview
LMV821QDBVRQ1 from Texas Instruments is a single-channel, rail-to-rail output operational amplifier qualified for automotive applications, operating from 2.5 V to 5.5 V supply, delivering 5.5 MHz gain bandwidth, 1.9 V/µs slew rate, and 0.3 mA typical supply current at 5 V - used in sensor signal conditioning and body control modules.
For engineers reviewing the LMV821QDBVRQ1 datasheet, LMV821QDBVRQ1 pinout, LMV821QDBVRQ1 application, or LMV821QDBVRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, –40°C to 125°C operation, rail-to-rail output swing, low input offset voltage (≤6 mV), and SOT-23-5 package compatibility with space-constrained automotive PCB layouts.
Technical Context
The LMV821QDBVRQ1 implements a CMOS input stage with rail-to-rail output stage, enabling full-swing operation into high-impedance loads while maintaining low crossover distortion. Its internal architecture supports stable unity-gain operation with 64.2° phase margin at 5 V and 600 Ω load.
It features an input common-mode voltage range extending 0.3 V below ground and up to 0.2 V below VCC+, allowing direct sensing of signals near ground in single-supply automotive systems - critical for battery monitoring and thermistor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - enables direct integration with 3.3 V and 5 V automotive microcontroller I/O rails without level-shifting. |
| Gain Bandwidth Product | 5.5 MHz typ at 5 V - supports closed-loop bandwidths >1 MHz in gain-of-10 configurations for fast sensor response. |
| Slew Rate | 1.9 V/µs typ at 5 V - ensures <526 ns settling time to 0.1% for 1 V step, suitable for pulse-width modulated signal buffering. |
| Input Offset Voltage | ≤6 mV over –40°C to 125°C - maintains ≤0.6% error in 1 V full-scale analog front-end designs without trimming. |
| Output Swing | Rail-to-rail: 0.1 V from V– and 0.15 V from V+ at 2 kΩ load - delivers >97% of supply range for maximum dynamic range in ADC driver applications. |
| Supply Current | 0.3 mA typ at 5 V - allows placement of multiple amplifiers in low-power always-on domains such as door module wake-up circuits. |
| Common-Mode Input Range | –0.3 V to VCC+ – 0.2 V - permits direct connection to grounded sensors (e.g., NTC thermistors) without bias resistors. |
Pinout & Package
SOT-23-5 package (DBV) with moisture sensitivity level 1, RoHS-compliant, green (Pb-free, no Sb/Br) finish, and 206°C/W thermal resistance (θJA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | Accepts differential or single-ended signals referenced to ground; supports common-mode down to –0.3 V. |
| 2 (IN–) | Inverting input | Used for feedback network connection; matched input bias current minimizes offset drift in precision configurations. |
| 3 (OUT) | Amplifier output | Drives rail-to-rail into ≥2 kΩ loads; capable of sourcing/sinking ≥20 mA at 5 V for direct LED or small relay interface. |
| 4 (GND/VCC–) | Ground / negative supply | Single-supply operation reference node; must be low-impedance path to minimize noise coupling in EMI-prone vehicle environments. |
| 5 (VCC+) | Positive supply | Accepts 2.5–5.5 V; decoupling capacitor required within 1 cm to suppress transients from ignition switching or load dump events. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates 2nd-harmonic artifacts in audio and PWM signal paths - critical for cabin microphone preamplifiers and motor control feedback loops. |
| Rail-to-rail output swing | Maximizes usable voltage range across varying battery voltages (9–16 V), preserving SNR when driving 12-bit ADCs in telematics ECUs. |
| AEC-Q100 Grade 1 qualified | Validated for continuous operation at 125°C ambient - meets reliability requirements for under-hood engine control and transmission control units. |
| Low input bias current (≤100 nA) | Enables high-impedance sensor interfacing (e.g., piezoresistive pressure sensors) without significant signal attenuation or offset shift. |
| High PSRR (≥75 dB) | Rejects ripple from switched DC/DC converters powering infotainment systems, reducing need for additional filtering in power-sensitive camera modules. |
Applications
| Engine Coolant Temperature Sensing | Seat Occupancy Detection |
|---|---|
Use Scenario: Amplifies low-level voltage from NTC thermistor embedded in coolant passage, conditioned before ADC sampling in engine control unit. IC Role / Device Role / Timing Role: Precision DC-coupled buffer with rail-to-rail output, translating 0.2–4.8 V thermistor voltage to full-scale ADC input. Use Value: Input common-mode range including ground enables direct thermistor connection without external bias, reducing BOM count and layout area by 30%. | Use Scenario: Interfaces capacitive seat sensor array to MCU, detecting occupant presence/position via charge-transfer measurement. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier in integrator-based capacitance-to-voltage conversion circuit. Use Value: 42 nV/√Hz input noise and ≤6 mV offset ensure <1% measurement error across –40°C to 85°C cabin temperature range. |
| Body Control Module Window Lift | LED Headlamp Current Regulation |
Use Scenario: Monitors motor current during power window actuation to detect pinch conditions and trigger reverse motion. IC Role / Device Role / Timing Role: High-side current sense amplifier with bidirectional capability, feeding analog input to safety-critical MCU. Use Value: Rail-to-rail output and 1.9 V/µs slew rate support accurate 10 kHz PWM current sampling without phase lag or clipping. | Use Scenario: Regulates forward current in adaptive LED headlamp strings using op-amp-controlled MOSFET gate drive. IC Role / Device Role / Timing Role: Error amplifier in constant-current feedback loop, comparing sensed current to reference voltage. Use Value: 5.5 MHz GBW ensures loop stability with <1 µs response to dimming commands, meeting UNECE R149 photometric transition timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV821QDRXQ1 | SOIC-8 package (D), higher thermal resistance (97°C/W), same electrical specs. | Better suited for prototyping or manual assembly; not optimal for high-density automotive PCBs. | Select when board-level rework or hand-soldering is required, or when thermal dissipation is managed via copper pour. |
| TSV911IQDBVRQ1 | Higher GBW (8 MHz), lower input offset (1.5 mV max), but higher supply current (0.85 mA typ). | Preferred for high-precision ADC drivers where offset and bandwidth outweigh power constraints. | Choose when system-level accuracy demands sub-mV offset and faster settling, accepting higher quiescent current in non-battery-critical zones. |
Compared with LMV821QDBVRQ1, LMV821QDRXQ1 offers identical performance in a larger SOIC-8 package better suited for development, while TSV911IQDBVRQ1 trades 2.8× higher supply current for 45% wider bandwidth and 75% lower offset - making it preferable only in precision-sensing subsystems where power budget allows.
Availability
LMV821QDBVRQ1 is available at Aetrix Electronics and suitable for automotive body electronics, engine management systems, and ADAS sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV821QDBVRQ1 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 specializing in analog and embedded processing technologies, with decades of automotive-grade product validation and AEC-Q100 program leadership.
The LMV82x-Q1 product line delivers low-voltage, rail-to-rail output op-amps optimized for cost-sensitive, space-constrained automotive subsystems - including body control, comfort, and chassis electronics - where reliability across –40°C to 125°C is mandatory.
FAQ
What is the operating temperature range of the LMV821QDBVRQ1?
The LMV821QDBVRQ1 is qualified for continuous operation from –40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This range is validated per TI's automotive qualification process and applies to all electrical specifications in the datasheet, including input offset voltage, gain bandwidth, and output swing - ensuring reliable performance in under-hood and cabin-mounted electronic control units.
Does the LMV821QDBVRQ1 support single-supply operation?
Yes, the LMV821QDBVRQ1 supports true single-supply operation from 2.5 V to 5.5 V. Its input common-mode range extends 0.3 V below ground and up to 0.2 V below VCC+, and its rail-to-rail output swings within 0.1 V of both supply rails under 2 kΩ load. This enables direct interfacing with grounded sensors and full utilization of ADC input range in 3.3 V or 5 V automotive systems without dual supplies.
What is the maximum output current capability of the LMV821QDBVRQ1?
The LMV821QDBVRQ1 can source and sink up to 20 mA minimum at 5 V supply (with typical values reaching 45 mA sourcing and 40 mA sinking). This is verified across –40°C to 125°C and supports direct driving of small LEDs, logic inputs, or MOSFET gates in automotive subsystems - though sustained >15 mA output requires attention to thermal derating due to its SOT-23-5 package thermal resistance of 206°C/W.
Is the LMV821QDBVRQ1 pin-compatible with other members of the LMV82x-Q1 family?
No, the LMV821QDBVRQ1 (SOT-23-5) is not pin-compatible with LMV822QDGKRQ1 (MSOP-8) or LMV824QDRQ1 (SOIC-14). Each variant has distinct pin counts, layouts, and terminal assignments - for example, the LMV821QDBVRQ1 uses pin 4 as GND/VCC–, whereas the dual LMV822 places GND on pin 4 and VCC+ on pin 8. Migration requires PCB redesign and layout verification.
What packaging and compliance certifications does the LMV821QDBVRQ1 have?
The LMV821QDBVRQ1 is supplied in a RoHS-compliant, green (Pb-free, no Sb/Br) SOT-23-5 package (DBV), with JEDEC MSL Level 1 rating (260°C peak reflow, unlimited floor life). It is AEC-Q100 Grade 1 qualified, certified to ISO/TS 16949 manufacturing standards, and rated for automotive use per TI's production data - with full traceability and lot-level documentation available upon request.
LMV821QDBVRQ1 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:
- 45 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV821QDBVRQ1 FAQ
1.How can I place an order for LMV821QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821QDBVRQ1 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 LMV821QDBVRQ1 reliable?
The price and inventory of LMV821QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for LMV821QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821QDBVRQ1?
LMV821QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821QDBVRQ1 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 LMV821QDBVRQ1?
For technical support, including LMV821QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821QDBVRQ1 requirements.
6.How does Aetrix verify that LMV821QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV821QDBVRQ1 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 LMV821QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of LMV821QDBVRQ1?
All LMV821QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV821QDBVRQ1, 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 LMV821QDBVRQ1 part is unused and in its original packaging.
Return procedure for LMV821QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV821QDBVRQ1 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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