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STMicroelectronics LMV822AIDT
- Part No.:
- LMV822AIDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV822AIDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,938
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Product details
Overview
LMV822AIDT from STMicroelectronics is a dual-channel, rail-to-rail output, low-power operational amplifier with shutdown control, designed for precision signal conditioning in space-constrained, 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 - enabling use in automotive sensor front-ends and portable medical monitors.
For engineers reviewing the LMV822AIDT datasheet, LMV822AIDT pinout, LMV822AIDT application, or LMV822AIDT equivalent, key selection criteria include its shutdown-enabled ultra-low quiescent current (50 nA), enhanced DC accuracy versus standard LMV822, rail-to-rail output swing into 2 kΩ loads, and AEC-Q100 qualification for automotive signal chains.
Technical Context
The LMV822AIDT implements a CMOS input stage with rail-to-rail output stage, supporting operation from 2.5 V to 5.5 V supply while maintaining full functionality over -40°C to +125°C. Its input common-mode range extends from VCC– – 0.2 V to VCC+ – 1 V, enabling ground-sensing capability without phase reversal.
Shutdown is controlled via a dedicated SHDN pin that places the amplifier in high-impedance output state with ≤50 nA total supply current at 25°C. Turn-on/turn-off times are specified at 300 ns and 20 ns respectively under defined load conditions, confirming fast power-state transitions suitable for duty-cycled sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5.5 MHz - supports stable unity-gain buffer or closed-loop gain ≥2 configurations up to ~2.5 MHz with adequate phase margin. |
| Input Offset Voltage (max) | 0.8 mV at 25°C - enables <1 LSB error in 12-bit ADC front-ends with gain ≤5 without trimming. |
| Supply Current per Channel | 400 µA max at 5 V - allows >10-year battery life in coin-cell–powered IoT sensors operating at 1% duty cycle. |
| Shutdown Current | 50 nA max at 25°C - reduces system standby power by >99.9% versus active mode, critical for always-on monitoring. |
| Rail-to-Rail Output Swing | ≤150 mV from rails into 2 kΩ - preserves dynamic range in low-voltage 3.3 V or 2.5 V systems without level-shifting. |
| Operating Temperature Range | -40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood automotive applications. |
| Common-Mode Rejection Ratio | 72 dB min at 5 V - suppresses noise coupling in differential sensor interfaces with mismatched trace lengths. |
Pinout & Package
LMV822AIDT is housed in an SO-8 (Small Outline) package with exposed pad (not electrically connected), measuring 4.9 mm × 3.9 mm × 1.75 mm. Pin 1 is marked by a notch or dot; device orientation follows JEDEC MS-012 standard.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | Differential input node for first op-amp; accepts signals within VCC– – 0.2 V to VCC+ – 1 V. |
| 2 | Non-inverting Input (Channel A) | Reference input for Channel A; supports ground-referenced sensor inputs without level shift. |
| 3 | Output (Channel A) | Rail-to-rail output capable of sourcing/sinking ≥25 mA at 5 V; high-Z in shutdown mode. |
| 4 | VCC– (Ground) | Power return for both channels; must be low-impedance path to minimize PSRR degradation. |
| 5 | Shutdown (SHDN) | Active-low enable: pulled to VCC– disables amplifier; pulled to VCC+ enables operation. |
| 6 | Non-inverting Input (Channel B) | Independent reference input for second op-amp; identical electrical specs to Pin 2. |
| 7 | Inverting Input (Channel B) | Differential input for Channel B; fully isolated from Channel A except shared supply pins. |
| 8 | VCC+ | Positive supply rail (2.5–5.5 V); requires local 10 nF ceramic decoupling per datasheet Section 4.5. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 qualified - validated for reliability in automotive signal conditioning modules. |
| Enhanced input offset accuracy | 0.8 mV max (vs. 3.5 mV for LMV822) - reduces calibration burden in factory-trimmed sensor systems. |
| Ultra-low shutdown current | 50 nA max at 25°C - enables microamp-level system sleep states without external FET switches. |
| Rail-to-rail output with 2 kΩ drive | ≤150 mV headroom at both rails - maximizes usable ADC input range in 3.3 V data acquisition systems. |
| High ESD tolerance | 4 kV HBM (non-SHDN pins), 3.5 kV HBM (SHDN pin) - improves robustness during PCB handling and field deployment. |
Applications
| Automotive Cabin Pressure Sensor Interface | Portable ECG Front-End Amplifier |
|---|---|
|
Use Scenario: Amplifying low-level bridge outputs from MEMS pressure transducers in HVAC control modules. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier stage (one channel for sensor, one for reference compensation), enabled only during periodic 100-ms measurement bursts. Use Value: Shutdown current ≤50 nA extends vehicle battery life during multi-week parking modes; rail-to-rail output ensures full 0–3.3 V ADC utilization. |
Use Scenario: Low-noise, low-power amplification of 0.5–2 mV biopotential signals from dry-electrode ECG patches. IC Role / Device Role / Timing Role: First-stage gain block with 100× fixed gain, powered continuously but biased at minimal 300 µA/channel to preserve SNR. Use Value: 0.8 mV max Vos avoids baseline drift >100 µV in 12-bit digitization; 1.4 V/µs slew rate supports 100 Hz QRS complex fidelity. |
| Battery-Powered Industrial Thermocouple Conditioner | Active Filter in Smart Meter Analog Front-End |
|
Use Scenario: Cold-junction compensation and linearization of K-type thermocouple outputs in handheld calibrators. IC Role / Device Role / Timing Role: Dual-op-amp configuration: one as precision reference buffer, one as programmable-gain amplifier with digital potentiometer interface. Use Value: Extended -40°C to +125°C operation guarantees accuracy across ambient storage and field use; 72 dB CMRR rejects common-mode noise from switching power supplies. |
Use Scenario: 2nd-order anti-aliasing and reconstruction filtering in polyphase energy meter SoCs. IC Role / Device Role / Timing Role: Dual-channel Sallen-Key topology implementing 10 kHz cutoff with matched gain/phase response between phases. Use Value: 5.5 MHz GBP enables <0.1° phase error at 10 kHz; low 400 µA/channel current minimizes thermal drift in sealed meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV822IDT | Higher 3.5 mV max Vos at 25°C; same GBW, shutdown, and temperature range. | Suitable where calibration is performed in-system or offset drift is compensated digitally. | Select when cost sensitivity outweighs need for factory-trimmed accuracy. |
| TSV852IST | Lower 180 µA max ICC/channel but reduced 1.9 MHz GBW and no shutdown function. | Better for always-on ultra-low-power apps (e.g., wearable motion sensors) where fast turn-on isn't required. | Choose when extended battery life is prioritized over bandwidth or dynamic power control. |
Compared with LMV822IDT, LMV822AIDT trades higher unit cost for guaranteed sub-millivolt offset - eliminating post-assembly trimming. Versus TSV852IST, it sacrifices some quiescent current efficiency to deliver 2.9× higher bandwidth and hardware-controlled shutdown, making it optimal for burst-mode automotive or industrial sensing.
Availability
LMV822AIDT is available at Aetrix Electronics and suitable for automotive signal conditioning, portable medical instrumentation, and battery-powered industrial sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV822AIDT 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
LMV822AIDT belongs to the LMV82xA precision op-amp product line, engineered specifically for high-accuracy, low-voltage signal conditioning in harsh environments - emphasizing AEC-Q100 compliance, rail-to-rail performance, and shutdown-enabled power optimization.
FAQ
What is the minimum recommended supply decoupling for LMV822AIDT?
Per Section 4.5 of the datasheet, a 10 nF ceramic capacitor must be placed as close as possible to each VCC+ and VCC– pin. Additional bulk capacitance (e.g., 1 µF X7R) may be added nearby for transient suppression, but the 10 nF cap is mandatory to ensure stability and PSRR performance across frequency.
Can LMV822AIDT drive capacitive loads directly?
Yes, but with limitations: the datasheet confirms stability with up to 40 pF capacitive load in unity-gain follower configuration (Figure 13). For loads >40 pF, a series resistor (≥100 Ω) must be added between output and capacitance to maintain ≥60° phase margin, as larger loads degrade loop stability and increase overshoot.
Is the SHDN pin 5 V-tolerant when VCC+ = 2.5 V?
No. The absolute maximum rating for SHDN voltage is VCC– – 0.2 V to VCC+ + 0.2 V (Table 2). Applying 5 V to SHDN while VCC+ = 2.5 V exceeds this limit and risks latch-up or permanent damage. A level-shifter or resistive divider is required for interfacing with higher-voltage logic.
How does input offset voltage drift behave over temperature?
The LMV822AIDT exhibits a maximum ΔVio/ΔT of 1 µV/°C across –40°C to +125°C (Table 6). This results in ≤0.17 mV total drift over the full range - significantly lower than standard-grade op-amps - ensuring stable DC accuracy in unregulated thermal environments like engine compartments or outdoor enclosures.
LMV822AIDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
LMV822AIDT FAQ
1.How can I place an order for LMV822AIDT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822AIDT 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 LMV822AIDT reliable?
The price and inventory of LMV822AIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822AIDT is usually 5 days.
3.What payment methods are accepted for LMV822AIDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822AIDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822AIDT?
LMV822AIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822AIDT 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 LMV822AIDT?
For technical support, including LMV822AIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822AIDT requirements.
6.How does Aetrix verify that LMV822AIDT is sourced from the original manufacturer or authorized distributors?
All LMV822AIDT 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 LMV822AIDT meets industry standards.
7.What is the process for return or replacement of LMV822AIDT?
All LMV822AIDT units undergo pre-shipment inspection (PSI). If there is an issue with LMV822AIDT, 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 LMV822AIDT part is unused and in its original packaging.
Return procedure for LMV822AIDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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