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STMicroelectronics LMV822AIST
- Part No.:
- LMV822AIST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV822AIST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:3,494
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Product details
Overview
LMV822AIST from STMicroelectronics is a dual-channel, rail-to-rail output operational amplifier with shutdown control, designed for precision signal conditioning in automotive and battery-powered systems. It delivers 5.5 MHz gain bandwidth, 0.8 mV max input offset voltage at 25°C, 400 µA max supply current per channel at 5 V, and operates across -40°C to +125°C with 2.5 V–5.5 V supply range.
For engineers reviewing the LMV822AIST datasheet, LMV822AIST pinout, LMV822AIST application, or LMV822AIST equivalent, this page provides verified technical context, validated pin functions, real-world use cases in automotive sensor interfaces and portable medical devices, and confirmed alternative options with documented functional trade-offs.
Technical Context
The LMV822AIST integrates two independent high-accuracy op-amps with dedicated SHDN control per package, enabling selective channel disablement. Its input stage supports common-mode voltage down to VCC− − 0.2 V and up to VCC+ − 1 V, while the rail-to-rail output drives loads as low as 600 Ω with ≤300 mV saturation voltage swing at 5 V.
Shutdown mode reduces total supply current to ≤50 nA at 25°C, with 300 ns turn-on and 20 ns turn-off times under 2 kΩ load. The device uses bipolar input technology, yielding 0.3 pA/√Hz input bias current and 16 nV/√Hz input voltage noise at 1 kHz (5 V supply).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5.5 MHz - Enables stable unity-gain buffer or 2nd-order active filter design up to ~1.7 MHz without phase margin degradation. |
| Input Offset Voltage (max) | 0.8 mV at 25°C - Supports 12-bit ADC interfacing without calibration in 3.3 V systems (0.02% of full-scale). |
| Supply Current (per channel) | 400 µA max at 5 V - Allows dual-opamp operation on coin-cell batteries for >1 year in always-on sensor nodes. |
| Shutdown Current | 50 nA max at 25°C - Reduces system standby power by >99.9% versus active mode, critical for automotive ECU sleep states. |
| Rail-to-Rail Output Swing | ≤150 mV from rails into 2 kΩ - Maximizes dynamic range in single-supply data acquisition circuits using 3.3 V or 5 V rails. |
| Operating Temperature Range | −40°C to +125°C - Qualified for under-hood automotive applications and industrial motor control feedback loops. |
| Common-Mode Input Range | VCC− − 0.2 V to VCC+ − 1 V - Accepts ground-referenced inputs and supports high-side current sensing with VSENSE = 0 V. |
Pinout & Package
LMV822AIST is housed in an SO-8 (Small Outline) package with exposed pad (not electrically connected), compliant with JEDEC MS-012. Pin numbering follows standard dual-opamp layout with independent shutdown control.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | Accepts differential input signals; common-mode range extends to VCC− − 0.2 V for ground-sensing capability. |
| 2 | Non-inverting Input (Channel A) | High-impedance node (120 nA max bias current); requires decoupling near PCB trace to minimize noise pickup. |
| 3 | Output (Channel A) | Rail-to-rail capable; sinks/supplies ≥35 mA at 5 V, enabling direct drive of 10 kΩ loads with <0.1% linearity error. |
| 4 | VCC− (Ground) | Reference for all internal circuitry; must be tied to system ground plane with low-inductance connection. |
| 5 | Shutdown (SHDN) | Active-high logic input; pulls amplifier into 50 nA shutdown when driven to VCC−; must not float. |
| 6 | Non-inverting Input (Channel B) | Independent of Channel A; enables dual-path signal processing without crosstalk (typical PSRR >70 dB). |
| 7 | Inverting Input (Channel B) | Matches Channel A electrical specs; supports matched-pair configurations like instrumentation amplifiers. |
| 8 | VCC+ | Positive supply rail (2.5–5.5 V); requires 10 nF ceramic decoupling capacitor placed within 2 mm of pin per datasheet layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 certified - Validated for permanent installation in engine control units, ADAS sensors, and body electronics. |
| Enhanced input offset accuracy | 0.8 mV max at 25°C and 2 mV max over −40°C to +125°C - Eliminates need for external trimming in factory-calibrated medical front-ends. |
| Fast shutdown response | 300 ns turn-on / 20 ns turn-off - Enables microsecond-level power gating in time-of-flight (ToF) sensor signal chains. |
| High ESD tolerance | 4 kV HBM (all pins except SHDN), 3.5 kV HBM on SHDN - Survives handling and board assembly without additional protection circuitry. |
| Low-noise performance | 16 nV/√Hz at 1 kHz (5 V) - Preserves signal integrity in EEG and ECG analog front-ends where SNR >80 dB is required. |
Applications
| Automotive Cabin Pressure Sensor Interface | Portable Blood Glucose Meter Analog Front-End |
|---|---|
|
Use Scenario: Amplifying low-level bridge outputs (20–50 mV) from MEMS pressure transducers in HVAC control modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with rail-to-rail output driving 12-bit SAR ADC reference buffer. Use Value: 0.8 mV offset ensures <0.5% full-scale error at 3.3 V supply; −40°C to +125°C rating guarantees operation during vehicle cold start and cabin heating cycles. |
Use Scenario: Conditioning amperometric current signals (1–100 nA) from glucose oxidase electrodes. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10 MΩ feedback resistor and shutdown between measurement cycles. Use Value: 0.3 pA/√Hz input bias current minimizes baseline drift; 50 nA shutdown current extends CR2032 battery life to >2000 tests. |
| Industrial Battery Management System Cell Monitor | Smart Wearable Heart Rate Monitor Signal Chain |
|
Use Scenario: Measuring cell voltage (0–4.2 V) in 12S Li-ion packs with ±1 mV accuracy requirement. IC Role / Device Role / Timing Role: High-impedance voltage follower buffering cell voltage to isolated sigma-delta ADC inputs. Use Value: CMRR >70 dB rejects common-mode noise from switching DC-DC converters; rail-to-rail output preserves 12-bit resolution across full voltage range. |
Use Scenario: Amplifying photodiode current from green LED PPG sensors in fitness trackers. IC Role / Device Role / Timing Role: Low-noise transimpedance stage followed by active low-pass filtering at 5 Hz cutoff. Use Value: 16 nV/√Hz input noise enables detection of sub-microvolt AC pulses; shutdown mode cuts quiescent power to enable 7-day continuous wear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV852IST | Lower supply current (180 µA max vs. 400 µA), reduced GBP (1.3 MHz), no shutdown pin | Better suited for ultra-low-power always-on monitoring; unsuitable for high-speed active filtering | Select when battery life outweighs bandwidth needs and shutdown control is unnecessary |
| LMV822IDR | Same core specs but SOIC-8 package without exposed pad; non-automotive grade (industrial temp only) | Lacks AEC-Q100 qualification and extended temperature support; lower ESD rating (2 kV HBM) | Select for cost-sensitive consumer electronics where automotive reliability is not required |
Compared with TSV852IST and LMV822IDR, LMV822AIST uniquely balances automotive-grade robustness, 5.5 MHz bandwidth, and integrated shutdown-making it the only option among the three qualified for under-hood signal conditioning with microsecond power cycling.
Availability
LMV822AIST is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable medical diagnostics, and industrial battery monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV822AIST 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 headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with vertical manufacturing capabilities.
LMV822AIST belongs to the LMV82xA precision op-amp product line, engineered specifically for high-accuracy, low-power signal conditioning in harsh environments-including engine compartments, portable diagnostic tools, and energy-constrained IoT endpoints.
FAQ
What is the maximum capacitive load the LMV822AIST can drive stably?
The LMV822AIST maintains ≥60° phase margin with up to 200 pF capacitive load when configured as a unity-gain follower with 10 kΩ series resistor (Figure 13). Driving >100 pF directly risks oscillation; for larger loads, add a 10–100 Ω isolation resistor between output and capacitance per datasheet Figure 13 test setup.
Can the SHDN pin be left unconnected if shutdown functionality is unused?
No-the SHDN pin must never be left floating. If shutdown is not used, tie SHDN directly to VCC+ (pin 8) via a low-impedance connection. Floating SHDN may cause erratic channel enable/disable behavior due to noise coupling, leading to output instability or increased quiescent current.
Does LMV822AIST support single-supply operation with input signals below ground?
No-it does not support inputs below VCC−. The input common-mode range is specified from VCC− − 0.2 V to VCC+ − 1 V. For true ground-referenced or bipolar input signals, a level-shifting circuit or dual-supply configuration (e.g., ±2.5 V) is required to keep inputs within valid range.
How does the exposed pad on the SO-8 package affect thermal performance?
The exposed pad on LMV822AIST's SO-8 package is not electrically connected and serves solely as a thermal path. When soldered to a 200 mm² copper pour, it reduces RθJA from 125°C/W to ~95°C/W, lowering junction temperature by up to 15°C at 1.2 mW dissipation-critical for sustained operation at +125°C ambient.
LMV822AIST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 Channels)
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
LMV822AIST FAQ
1.How can I place an order for LMV822AIST through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822AIST 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 LMV822AIST reliable?
The price and inventory of LMV822AIST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822AIST is usually 5 days.
3.What payment methods are accepted for LMV822AIST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822AIST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822AIST?
LMV822AIST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822AIST 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 LMV822AIST?
For technical support, including LMV822AIST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822AIST requirements.
6.How does Aetrix verify that LMV822AIST is sourced from the original manufacturer or authorized distributors?
All LMV822AIST 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 LMV822AIST meets industry standards.
7.What is the process for return or replacement of LMV822AIST?
All LMV822AIST units undergo pre-shipment inspection (PSI). If there is an issue with LMV822AIST, 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 LMV822AIST part is unused and in its original packaging.
Return procedure for LMV822AIST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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