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STMicroelectronics LMV820AILT
- Part No.:
- LMV820AILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
LMV820AILT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,905
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Product details
Overview
LMV820AILT from STMicroelectronics is a single-channel, rail-to-rail output operational amplifier with integrated shutdown control, designed for precision signal conditioning in low-voltage, power-constrained systems. It delivers 5.5 MHz gain bandwidth, 0.8 mV max input offset voltage (25°C), 400 µA max supply current at 5 V, and operates across –40°C to +125°C - enabling use in automotive sensor front-ends and portable medical monitors.
For engineers reviewing the LMV820AILT datasheet, LMV820AILT pinout, LMV820AILT application, or LMV820AILT equivalent, key selection considerations include shutdown logic compatibility (SHDN active-low), rail-to-rail output swing under 2 kΩ load (≤200 mV from rails), input common-mode range extending to VCC–1 V, and guaranteed performance at 2.5 V supply - critical for battery-powered industrial IoT nodes and ASIL-B-compliant signal chains.
Technical Context
The LMV820AILT implements a CMOS input stage with rail-to-rail output push-pull architecture, supporting operation down to 2.5 V while maintaining 70 dB minimum CMRR and 70 dB SVRR over temperature. Its shutdown function disables the amplifier core and forces output into high-impedance state when SHDN is pulled to VCC–, reducing quiescent current to ≤50 nA at 25°C.
It features internal compensation for stable unity-gain operation with ≥60° phase margin into 2 kΩ || 40 pF loads, and exhibits 1.2–1.9 V/µs slew rate depending on supply voltage. Input offset drift is specified at 1 µV/°C over –40°C to +125°C, supporting uncalibrated precision sensing in wide-temperature environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - enables direct interface with Li-ion (3.0–4.2 V) and single-cell alkaline (up to 1.8 V × 3 = 5.4 V) power rails. |
| Gain Bandwidth Product | 5.5 MHz - supports closed-loop bandwidth >1 MHz in gain-of-2 configurations for fast sensor signal amplification. |
| Input Offset Voltage | 0.8 mV max at 25°C - reduces DC error in 12-bit ADC front-ends without trimming, e.g., ±0.32 LSB error at 3.3 V full-scale. |
| Shutdown Current | 50 nA max at 25°C - extends battery life by >100× vs active mode in duty-cycled sensor acquisition (e.g., 1 Hz sampling). |
| Rail-to-Rail Output Swing | Within 200 mV of both rails at 2 kΩ load - preserves dynamic range in 3.3 V systems with 10-bit+ ADCs requiring >3 Vpp signal swing. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial motor control applications per AEC-Q100 Grade 1. |
| ESD Rating | 4 kV HBM (non-SHDN pins), 3.5 kV HBM (SHDN pin) - withstands handling and board-level ESD events without latch-up. |
Pinout & Package
LMV820AILT is housed in SC70-5 (SOT323-5) package - a 2.0 mm × 2.1 mm, 0.65 mm pitch surface-mount outline optimized for space-constrained PCB layouts in portable and automotive modules.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (IN–) | Differential input node; accepts signals within VCC– – 0.2 V to VCC+ – 1 V - supports ground-referenced sensor bridges. |
| 2 | Non-inverting Input (IN+) | Differential input node; same common-mode range as IN–; enables single-supply instrumentation amplifier topologies. |
| 3 | VCC– (Ground) | Power return reference; must be low-impedance connection to system ground plane to minimize noise coupling. |
| 4 | Output (OUT) | Push-pull rail-to-rail output; enters high-Z state during shutdown - allows multiplexing or shared-bus configurations. |
| 5 | SHDN (Shutdown) | Active-low enable control; pulled to VCC– to disable amplifier; requires external pull-down or microcontroller GPIO drive. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power shutdown mode | Reduces supply current to ≤50 nA, enabling microamp-level system sleep states without external power gating. |
| Rail-to-rail output swing | Delivers ≥94% of full supply range at 2 kΩ load - maximizes ADC utilization in 3.3 V data acquisition systems. |
| Extended temperature operation | Guaranteed parametric performance from –40°C to +125°C - eliminates derating for engine control unit (ECU) ambient conditions. |
| High ESD tolerance | 4 kV HBM rating on signal pins ensures robustness against assembly-line and field ESD events without added protection diodes. |
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for reliability in automotive signal conditioning, including crankshaft position and cabin air quality sensors. |
Applications
| Automotive Cabin Sensor Interface | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying low-level analog outputs from NDIR CO₂ and humidity sensors in automotive HVAC control modules. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier with shutdown synchronized to sensor polling interval (100 ms cycle). Use Value: 0.8 mV offset ensures <±0.5% full-scale error over temperature; 50 nA shutdown current extends module battery life to >5 years in key-off monitoring. |
Use Scenario: Biopotential signal conditioning in handheld electrocardiogram (ECG) devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: First-stage gain amplifier with rail-to-rail output driving 12-bit SAR ADC; shutdown activated between heartbeat detection windows. Use Value: 5.5 MHz GBP supports clean amplification of 0.05–150 Hz ECG band; 2.5 V min supply enables direct operation from CR2032 (2.0–3.0 V). |
| Industrial Pressure Transmitter | Smart Thermostat Signal Chain |
Use Scenario: Conditioning millivolt-level bridge outputs from MEMS pressure sensors in factory automation transmitters. IC Role / Device Role / Timing Role: Precision instrumentation amplifier driver with programmable gain; shutdown used during wireless transmission bursts to reduce peak current. Use Value: 1 µV/°C offset drift maintains calibration stability across –25°C to +70°C operating range; 125°C max junction temp supports enclosure mounting near motors. |
Use Scenario: Amplifying thermistor and ambient light sensor outputs in battery-operated smart thermostats with BLE connectivity. IC Role / Device Role / Timing Role: Dual-role amplifier: low-noise gain stage for NTC biasing, then shutdown-enabled buffer for ADC sampling every 5 seconds. Use Value: 16 nV/√Hz input noise at 1 kHz preserves resolution in 10-bit temperature measurements; SC70-5 footprint saves >30% PCB area vs SOIC-8 alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp with shutdown applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV851ILT | Lower quiescent current (180 µA vs 400 µA), but no shutdown pin; 1.8 MHz GBP; 2.7 V min supply. | Lacks hardware shutdown - requires software-controlled enable via external FET or regulator; unsuitable for ultra-low-power wake-on-event designs. | Select when lowest active power dominates system budget and shutdown timing control is unnecessary. |
| LMV821AILT | No shutdown pin; identical GBP, offset, and temperature range; same SC70-5 package; 300 µA typical ICC. | Requires external power switch for deep-sleep modes; increases BOM count and layout complexity in battery-critical applications. | Select when shutdown functionality is not required and cost minimization is prioritized over power-state flexibility. |
Compared with TSV851ILT and LMV821AILT, LMV820AILT uniquely integrates low-leakage shutdown control in the same compact SC70-5 footprint - eliminating external circuitry while delivering 100× lower off-state current than LMV821AILT and enabling deterministic hardware-triggered power cycling absent in TSV851ILT.
Availability
LMV820AILT is available at Aetrix Electronics and suitable for automotive signal conditioning, portable medical instrumentation, and industrial sensor transmitters requiring stable component supply across extended temperature and long product lifecycles.
Supply support for LMV820AILT 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
STMicroelectronics is a global semiconductor leader specializing in automotive, industrial, and power management ICs, with vertical manufacturing and AEC-Q100-qualified analog product lines.
The LMV82x series targets high-accuracy, low-voltage signal conditioning in harsh environments - specifically engineered to replace legacy LMV321-grade op-amps with superior bandwidth, offset, and temperature robustness for next-generation automotive and industrial edge nodes.
FAQ
What is the recommended decoupling for LMV820AILT?
Place a 10 nF ceramic capacitor between VCC+ and VCC– pins, located as close as possible to the SC70-5 package body. This minimizes high-frequency supply noise coupling into the input stage and prevents oscillation under heavy capacitive loading conditions.
Can LMV820AILT drive a 100 pF capacitive load stably?
Yes - the LMV820AILT maintains ≥45° phase margin into 100 pF loads when configured as a unity-gain follower with a 10 kΩ series resistor at the output, per Figure 10 in the datasheet. For direct 100 pF loads without isolation, add a 10–50 Ω series resistor to ensure stability.
Is the SHDN pin 5 V tolerant when VCC = 2.5 V?
No - the absolute maximum SHDN voltage is VCC+ + 0.2 V. With VCC = 2.5 V, SHDN must remain ≤2.7 V. Driving it from a 3.3 V or 5 V GPIO requires a level-shifting resistor divider or open-drain buffer to avoid exceeding ratings.
How does output leakage behave in shutdown mode?
In shutdown, output leakage is ≤1 nA over –40°C to +125°C (per Table 5–9), ensuring minimal error when the output connects to high-impedance nodes like ADC sample-and-hold capacitors or multiplexer inputs without additional isolation switches.
LMV820AILT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 60 nA
- Voltage - Input Offset:
- 800 µV
- Current - Supply:
- 300µA
- Current - Output / Channel:
- 70 mA
- 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-23-6
LMV820AILT FAQ
1.How can I place an order for LMV820AILT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV820AILT 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 LMV820AILT reliable?
The price and inventory of LMV820AILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV820AILT is usually 5 days.
3.What payment methods are accepted for LMV820AILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV820AILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV820AILT?
LMV820AILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV820AILT 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 LMV820AILT?
For technical support, including LMV820AILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV820AILT requirements.
6.How does Aetrix verify that LMV820AILT is sourced from the original manufacturer or authorized distributors?
All LMV820AILT 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 LMV820AILT meets industry standards.
7.What is the process for return or replacement of LMV820AILT?
All LMV820AILT units undergo pre-shipment inspection (PSI). If there is an issue with LMV820AILT, 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 LMV820AILT part is unused and in its original packaging.
Return procedure for LMV820AILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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