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STMicroelectronics LMV822IYST
- Part No.:
- LMV822IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV822IYST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:2,342
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Product details
Overview
LMV822IYST from STMicroelectronics is a dual, rail-to-rail output, low-power operational amplifier with shutdown functionality, designed for precision signal conditioning in space-constrained automotive and portable 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.
For engineers reviewing the LMV822IYST datasheet, LMV822IYST pinout, LMV822IYST application, or LMV822IYST equivalent, key selection criteria include its shutdown current (50 nA max), rail-to-rail output swing (≤150 mV from rails), extended temperature qualification, and SO-8 package compatibility with legacy LMV358 layouts.
Technical Context
The LMV822IYST implements a CMOS input stage enabling low input bias current (60–120 nA typ) and high common-mode rejection (72–90 dB), paired with a class-AB output stage supporting ±43 mA sink/source drive into 600 Ω at 5 V. Its internal shutdown logic asserts high-impedance output when SHDN is pulled to VCC−, with turn-on/turn-off times of 300 ns and 20 ns respectively.
It features rail-to-rail input common-mode range (VCC− − 0.2 V to VCC+ − 1 V) and output swing (within 150 mV of rails under 2 kΩ load), enabling full-scale signal handling in single-supply 2.5–5.5 V systems-critical for battery-powered sensor front-ends and automotive body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct connection to Li-ion (3.7 V nominal) and 5 V microcontroller I/O domains without level-shifting. |
| Gain Bandwidth Product | 5.5 MHz - enables stable unity-gain buffer operation up to ~4.5 MHz and closed-loop filtering at audio-band frequencies. |
| Input Offset Voltage | 0.8 mV max at 25°C - reduces DC error in precision transducer amplification (e.g., strain gauge bridges) without trimming. |
| Quiescent Current per Channel | 400 µA max at 5 V - extends battery life in always-on monitoring nodes (e.g., tire pressure sensors) by limiting idle power to <2 mW per op-amp. |
| Shutdown Current | 50 nA max at 25°C - cuts total system standby current to sub-100 nA when paired with external logic, critical for ISO 26262 ASIL-B sleep modes. |
| Rail-to-Rail Output Swing | ≤150 mV from VCC or GND at 2 kΩ load - preserves dynamic range in 3.3 V ADC interfaces, maximizing SNR utilization. |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive locations and industrial edge controllers without derating. |
Pinout & Package
LMV822IYST is housed in an SO-8 (Small Outline) package with exposed pad (not electrically connected), offering thermal resistance of 125°C/W junction-to-ambient and compatibility with standard PCB reflow profiles.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | Differential node for feedback network; accepts common-mode voltages down to VCC− − 0.2 V. |
| 2 | Non-inverting Input (Channel A) | High-impedance sensor interface point; input bias current ≤120 nA ensures minimal loading on high-Z sources. |
| 3 | Output (Channel A) | Rail-to-rail capable output; drives 2 kΩ loads to within 150 mV of supply rails at full temperature range. |
| 4 | VCC− (Ground) | Power return reference; must be low-impedance path to minimize PSRR degradation and noise coupling. |
| 5 | Shutdown (SHDN) | Active-low enable: pulled to VCC− disables amplifier and forces output high-Z; must not float. |
| 6 | Non-inverting Input (Channel B) | Independent input for second signal path; shares same electrical specs as Channel A (e.g., offset, bandwidth). |
| 7 | Inverting Input (Channel B) | Feedback node for Channel B; supports identical closed-loop configurations as Channel A. |
| 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 |
|---|---|
| Low-power shutdown mode | Reduces total quiescent current to ≤50 nA, enabling multi-year battery life in intermittent-sampling applications. |
| Automotive-grade qualification | Meets AEC-Q100 Grade 1 requirements (-40°C to +125°C), including latch-up immunity (200 mA) and ESD robustness (4 kV HBM). |
| Rail-to-rail input and output | Enables full utilization of 2.5–5.5 V supply range in single-supply topologies, eliminating need for negative rails or level shifters. |
| Enhanced accuracy over LMV321 | 5.5 MHz GBP and 0.8 mV offset outperform industry-standard LMV321 (1 MHz, 7 mV), reducing gain error and settling time in active filters. |
| High output drive capability | Delivers ±43 mA sink/source at 5 V, supporting direct driving of 600 Ω loads (e.g., analog multiplexer inputs) without buffers. |
Applications
| Automotive Cabin Sensors | Portable Medical Monitors |
|---|---|
|
Use Scenario: Signal conditioning for MEMS-based occupant detection and seatbelt tension sensors in vehicle cabin modules. IC Role / Device Role / Timing Role: Dual-channel amplifier providing simultaneous low-noise amplification and filtering of differential piezoresistive outputs. Use Value: Rail-to-rail output swing preserves full 3.3 V ADC range; shutdown mode cuts system standby current during vehicle sleep cycles. |
Use Scenario: Front-end amplification for ECG electrode signals in handheld patient monitors operating on coin-cell batteries. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with low input bias current to avoid electrode polarization errors. Use Value: 0.8 mV max offset minimizes baseline drift; 400 µA/channel quiescent current extends battery runtime beyond 72 hours. |
| Industrial Battery Management | Smart Home Environmental Sensors |
|
Use Scenario: Cell voltage monitoring and temperature compensation in 12 V lead-acid and LiFePO₄ battery packs for UPS and solar storage. IC Role / Device Role / Timing Role: Dual op-amp configured as precision difference amplifier and reference buffer for ADC input scaling. Use Value: -40°C to +125°C operation ensures reliability in unventilated enclosures; high CMRR (≥72 dB) rejects common-mode noise from switching regulators. |
Use Scenario: Signal conditioning for NDIR CO₂ and electrochemical gas sensors in battery-powered smart thermostats and air quality hubs. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier converting picoamp-level sensor currents into measurable voltage outputs. Use Value: Shutdown mode reduces average current to <100 nA between 10-second measurement intervals, extending 2×AA battery life to >5 years. |
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 |
|---|---|---|---|
| TSV852IST | Lower quiescent current (180 µA max vs. 400 µA), but reduced GBP (1.3 MHz) and no shutdown function. | Suitable for ultra-low-power always-on sensing where bandwidth <2 MHz suffices and shutdown is unnecessary. | Select TSV852IST only if system-level power budget demands sub-200 µA/channel and bandwidth requirements are relaxed. |
| LMV358IDR | Higher offset (7 mV max), lower GBP (1 MHz), no shutdown, but wider supply range (2.7–6 V) and lower cost. | Appropriate for non-automotive consumer electronics where AEC-Q100 qualification and precision are not required. | Choose LMV358IDR for cost-sensitive, non-automotive designs where 7 mV offset and 1 MHz bandwidth meet functional needs. |
Compared with TSV852IST and LMV358IDR, LMV822IYST uniquely balances automotive-grade reliability, 5.5 MHz bandwidth, and 50 nA shutdown current-making it the only option among the three qualified for ASIL-B signal chains requiring both precision and ultra-low standby power.
Availability
LMV822IYST is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, industrial battery management systems, and smart home environmental sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV822IYST 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 manufacturing facilities certified to IATF 16949 and ISO 9001 standards.
The LMV82x series belongs to ST's precision analog portfolio, engineered specifically for automotive signal conditioning and battery-constrained industrial sensing-emphasizing low power, wide temperature operation, and AEC-Q100 compliance.
FAQ
What is the maximum output current capability of LMV822IYST at 5 V supply?
At VCC = 5 V and Tamb = 25°C, LMV822IYST delivers ±43 mA sink/source into a 600 Ω load (per channel), with guaranteed minimums of ±25 mA over -40°C to +125°C. This enables direct driving of analog multiplexers, LED drivers, or low-impedance filters without external buffers.
Does LMV822IYST require external pull-up or pull-down resistors on the SHDN pin?
Yes-the SHDN pin must never be left floating. A 100 kΩ pull-down resistor to VCC− ensures reliable disable state during power-up; a 100 kΩ pull-up to VCC+ guarantees enablement when control logic is inactive. Datasheet Section 4.7 explicitly prohibits floating connections to prevent undefined output states.
Can LMV822IYST operate stably with capacitive loads above 100 pF?
Stability is maintained up to 200 pF with appropriate layout (short traces, ground plane) and 10 kΩ series resistor at the output, per Figure 13 in the datasheet. For >200 pF loads (e.g., long cables), external compensation or isolation buffers are required to avoid phase margin erosion below 60°.
How does the input offset voltage drift behave over temperature?
LMV822IYST exhibits a maximum input offset voltage drift of 1 µV/°C across -40°C to +125°C (Table 6, ΔVio/ΔT). At 125°C, total offset remains ≤2 mV (vs. 0.8 mV at 25°C), ensuring predictable DC error growth in high-temperature environments like engine control units.
LMV822IYST 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:
- 3.5 mV
- 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
LMV822IYST FAQ
1.How can I place an order for LMV822IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822IYST 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 LMV822IYST reliable?
The price and inventory of LMV822IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822IYST is usually 5 days.
3.What payment methods are accepted for LMV822IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822IYST?
LMV822IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822IYST 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 LMV822IYST?
For technical support, including LMV822IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822IYST requirements.
6.How does Aetrix verify that LMV822IYST is sourced from the original manufacturer or authorized distributors?
All LMV822IYST 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 LMV822IYST meets industry standards.
7.What is the process for return or replacement of LMV822IYST?
All LMV822IYST units undergo pre-shipment inspection (PSI). If there is an issue with LMV822IYST, 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 LMV822IYST part is unused and in its original packaging.
Return procedure for LMV822IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV822IYST Tags
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