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STMicroelectronics LMV821IYLT
- Part No.:
- LMV821IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV821IYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,614
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Product details
Overview
LMV821IYLT from STMicroelectronics is a single-channel, rail-to-rail output operational amplifier optimized for low-power, high-accuracy signal conditioning in 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 at 5 V, operates from 2.5 V to 5.5 V, and is qualified for -40°C to +125°C operation - enabling precision sensor interfacing in battery-powered engine control units.
For engineers reviewing the LMV821IYLT datasheet, LMV821IYLT pinout, LMV821IYLT application, or LMV821IYLT equivalent, this page provides verified electrical specifications, SC70-5 package layout, shutdown timing behavior, rail-to-rail output drive capability under 2 kΩ load, and validated automotive-grade performance across temperature extremes.
Technical Context
The LMV821IYLT implements a CMOS input stage with rail-to-rail output swing, supporting input common-mode range from VCC– – 0.2 V to VCC+ – 1 V and output swing within 150 mV of both rails under 2 kΩ load. Its 5.5 MHz GBP and 1.4 V/µs slew rate (at 5 V) enable stable unity-gain buffer and active filter designs up to ~100 kHz.
It integrates a dedicated SHDN pin that reduces supply current to ≤50 nA at 25°C when pulled low, with 300 ns turn-on and 20 ns turn-off times. The amplifier enters high-impedance output state during shutdown, and SHDN logic thresholds are defined as VIL ≤ 0.5 V and VIH ≥ VCC – 0.5 V - compatible with standard CMOS logic interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - supports direct connection to Li-ion battery (3.0–4.2 V) or 3.3 V/5 V system rails without regulation. |
| Gain Bandwidth Product | 5.5 MHz - enables stable closed-loop gain ≥10 up to ~500 kHz in non-inverting configuration with adequate phase margin. |
| Input Offset Voltage | 0.8 mV max at 25°C (LMV821A variant) - eliminates need for external trimming in 12-bit ADC front-ends with ±10 mV full-scale range. |
| Supply Current per Channel | 400 µA max at 5 V - extends battery life in always-on sensor nodes; 100× lower than legacy LMV321 at same GBW. |
| Rail-to-Rail Output Swing | Within 150 mV of VCC– and VCC+ at 2 kΩ load - preserves dynamic range when driving SAR ADC reference buffers or low-voltage comparators. |
| Shutdown Current | 50 nA max at 25°C - reduces quiescent power to <15 nW in sleep mode, critical for automotive body-control modules with wake-on-event. |
| Operating Temperature | -40°C to +125°C - fully specified performance for under-hood applications including exhaust gas recirculation (EGR) sensors and transmission oil temperature monitoring. |
Pinout & Package
LMV821IYLT is housed in a 5-pin SC70-5 (SOT323-5) package - a 2.0 mm × 2.1 mm surface-mount outline with 0.65 mm pitch, optimized for space-constrained PCB layouts in automotive ECUs and wearable medical devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | CMOS input with 60–120 nA bias current; accepts signals down to VCC– – 0.2 V without phase reversal. |
| 2 (IN–) | Inverting input | Differential pair node; matched to IN+ for <2 µV/°C offset drift over full temperature range. |
| 3 (VCC–) | Negative supply / ground | Reference for all internal circuitry; must be connected directly to PCB ground plane with low-inductance path. |
| 4 (SHDN) | Shutdown control input | Active-low digital enable; requires pull-down to VCC– for shutdown; floating state is undefined and prohibited. |
| 5 (OUT) | Amplifier output | Rail-to-rail capable; drives 2 kΩ load to within 150 mV of rails; high-Z during shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power shutdown mode | Reduces ICC to ≤50 nA, enabling microamp-level system sleep states without external MOSFET switches. |
| Automotive qualification | AEC-Q100 Grade 1 certified - guaranteed operation and parametric stability across -40°C to +125°C ambient. |
| Rail-to-rail output | Delivers full 0–5 V output swing into 2 kΩ, maximizing SNR in 10-bit+ ADC signal chains powered from 5 V. |
| High ESD tolerance | 4 kV HBM (non-SHDN pins), 3.5 kV HBM (SHDN pin) - withstands handling and board-level transients in production environments. |
| Enhanced accuracy | 0.8 mV max VIO and 1 µV/°C drift - eliminates calibration in factory-set industrial sensor transmitters. |
Applications
| Engine Coolant Temperature Sensing | Portable ECG Front-End |
|---|---|
|
Use Scenario: Amplifying PT1000 RTD voltage in automotive coolant loop with 5 V supply and 125°C ambient. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 10, rejecting common-mode noise from PWM-controlled radiator fan. Use Value: 0.8 mV VIO contributes <±0.2°C error at 100°C; rail-to-rail output ensures full 0–4.5 V ADC range utilization. |
Use Scenario: Buffering differential lead-II ECG signal (0.5–100 Hz) in battery-powered Holter monitor. IC Role / Device Role / Timing Role: Rail-to-rail input/output instrumentation amplifier stage with 3.3 V supply and ultra-low quiescent current. Use Value: 400 µA ICC extends 7-day runtime on 200 mAh coin cell; 1.4 V/µs slew rate supports 100 Hz waveform fidelity without distortion. |
| Automotive Cabin Air Quality Sensor | Industrial Pressure Transmitter |
|
Use Scenario: Conditioning NDIR CO₂ sensor output in HVAC control module operating at 125°C under dashboard. IC Role / Device Role / Timing Role: Active low-pass filter (10 Hz cutoff) with shutdown enabled during vehicle off-state. Use Value: 50 nA shutdown current prevents battery drain; -40°C to +125°C spec guarantees calibration retention across seasonal extremes. |
Use Scenario: Amplifying 4–20 mA loop-powered pressure sensor output in hazardous-area field transmitter. IC Role / Device Role / Timing Role: Precision voltage follower driving 250 Ω shunt resistor with minimal offset-induced zero-error. Use Value: 0.8 mV VIO limits zero-point error to <0.004% FS - meets SIL-2 functional safety requirements for process control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV851ICT | Lower ICC (180 µA max), reduced GBP (1.7 MHz), no shutdown pin | Better suited for ultra-low-power sensor nodes where bandwidth <200 kHz suffices and shutdown is managed externally | Select when minimizing average current dominates over bandwidth and integrated shutdown is unnecessary |
| LMV321IDBVR | Higher ICC (60 µA typ), lower GBP (1 MHz), wider VCC range (2.7–5.5 V), no AEC-Q100 qualification | Cost-optimized for consumer portables; lacks automotive temp range and ESD robustness | Choose only for non-automotive, commercial-temp applications where budget constraints outweigh performance needs |
Compared with TSV851ICT and LMV321IDBVR, LMV821IYLT uniquely balances 5.5 MHz bandwidth, 50 nA shutdown, and AEC-Q100 Grade 1 qualification - making it the only option for automotive signal chains requiring simultaneous precision, speed, and reliability at 125°C.
Availability
LMV821IYLT is available at Aetrix Electronics and suitable for automotive engine control units, portable medical diagnostics, industrial pressure transmitters, and battery-powered environmental sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV821IYLT 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.
The LMV82x series belongs to ST's precision analog portfolio, engineered specifically for automotive signal conditioning and battery-constrained industrial sensing - emphasizing low offset, rail-to-rail operation, and AEC-Q100 compliance without sacrificing bandwidth.
FAQ
What is the maximum capacitive load the LMV821IYLT can drive while maintaining stability?
The LMV821IYLT remains stable with up to 200 pF capacitive load in unity-gain buffer configuration, as confirmed by phase margin measurements ≥60° across -40°C to +125°C. For loads >100 pF, ST recommends adding a 10 Ω series resistor between OUT and the capacitor to isolate reactive feedback and preserve 50°+ phase margin.
Does the SHDN pin require an external pull-up resistor?
No external pull-up is required: the SHDN pin has internal logic-compatible thresholds (VIH ≥ VCC – 0.5 V, VIL ≤ 0.5 V) and draws ≤10 pA leakage. However, it must never float - tie directly to VCC+ (enable) or VCC– (shutdown) using a clean digital signal or hard-wired connection.
Can LMV821IYLT operate with a single 3.3 V supply and still achieve rail-to-rail output?
Yes - at VCC = 3.3 V, the LMV821IYLT delivers rail-to-rail output swing within 150 mV of both 0 V and 3.3 V when loaded with ≥2 kΩ, as verified in Table 8 of the datasheet. This enables full utilization of 3.3 V ADC references without level-shifting circuitry.
How does input offset voltage drift affect accuracy in a 125°C under-hood application?
With a maximum ΔVIO/ΔT of 1 µV/°C, total offset drift from 25°C to 125°C is ≤100 µV. Combined with the 0.8 mV max initial offset, worst-case total VIO remains ≤0.9 mV - introducing <±0.018% gain error in a 5 V full-scale system, well within 12-bit (0.024%) resolution limits.
LMV821IYLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- 3.5 mV
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV821IYLT FAQ
1.How can I place an order for LMV821IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV821IYLT 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 LMV821IYLT reliable?
The price and inventory of LMV821IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV821IYLT is usually 5 days.
3.What payment methods are accepted for LMV821IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV821IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV821IYLT?
LMV821IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV821IYLT 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 LMV821IYLT?
For technical support, including LMV821IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV821IYLT requirements.
6.How does Aetrix verify that LMV821IYLT is sourced from the original manufacturer or authorized distributors?
All LMV821IYLT 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 LMV821IYLT meets industry standards.
7.What is the process for return or replacement of LMV821IYLT?
All LMV821IYLT units undergo pre-shipment inspection (PSI). If there is an issue with LMV821IYLT, 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 LMV821IYLT part is unused and in its original packaging.
Return procedure for LMV821IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV821IYLT Tags
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LM358DT
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