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STMicroelectronics TSV991AIYLT
- Part No.:
- TSV991AIYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV991AIYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,681
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Product details
Overview
TSV991AIYLT from STMicroelectronics is an automotive-grade rail-to-rail input/output operational amplifier optimized for low-voltage, low-power sensor signal conditioning. It delivers 20 MHz gain-bandwidth at ≥4 or ≤−3 minimum stable gain, 1.5 mV max input offset voltage (A grade), 820 µA typical supply current, and ±35 mA output drive across 2.5 V to 5.5 V operation - enabling high-accuracy front-end amplification in battery-powered ADAS sensors and medical wearables.
For engineers reviewing the TSV991AIYLT datasheet, TSV991AIYLT pinout, TSV991AIYLT application, or TSV991AIYLT equivalent, key selection criteria include its AEC-Q100 qualified SOT23-5 package, guaranteed stability at non-unity gains, ultra-low 1 pA input bias current, and −40 °C to +125 °C automotive temperature range - critical for precision analog interfaces in harsh environments.
Technical Context
The TSV991AIYLT employs a proprietary CMOS input stage delivering rail-to-rail common-mode input range (VCC− −0.1 V to VCC+ +0.1 V) and rail-to-rail output swing within 15 mV of rails (RL = 10 kΩ). Its internal compensation ensures phase margin ≥45° only when configured with gain ≥4 (non-inverting) or ≤−3 (inverting), making unity-gain follower use require external stabilization via series output resistor or feedback capacitor.
It features 21 nV/√Hz input voltage noise at 10 kHz, 0.0014% THD+N at 1 kHz (4.4 Vpp output, 5 V supply), and 70–86 dB supply voltage rejection ratio - confirming suitability for high-fidelity, low-distortion signal chains where power efficiency and DC precision are jointly constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - enables stable closed-loop operation up to ~5 MHz at G = 4, supporting anti-aliasing and reconstruction filters in 10-bit+ data acquisition systems. |
| Input offset voltage (max) | 1.5 mV - limits DC error to ≤0.3% of full-scale in 500 mV sensor outputs, reducing need for system-level calibration. |
| Supply current (typ) | 820 µA - allows continuous operation for >1 year on a single CR2032 coin cell in always-on wearable biosensors. |
| Output current (min) | ±16 mA - drives 10 kΩ loads to rail with <40 mV saturation, sufficient for driving SAR ADC reference buffers or LED bias circuits. |
| Input bias current (typ) | 1 pA - prevents significant voltage drop across >100 MΩ source impedances (e.g., piezoelectric or pH electrodes), preserving signal integrity. |
| Common-mode rejection | 53–75 dB - rejects power-supply ripple and EMI coupling in single-supply industrial transducer interfaces without dedicated guard traces. |
| ESD protection | ≥5 kV HBM - meets IEC 61000-4-2 Level 3 requirements for handheld diagnostic tools and automotive body control modules. |
Pinout & Package
TSV991AIYLT is supplied in an AEC-Q100 qualified SOT23-5 package (1.6 mm × 2.9 mm × 1.1 mm), featuring a thermally enhanced layout with exposed pad unconnected (floating or tied to VCC− per layout guidelines).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (IN−) | High-impedance node accepting differential feedback; requires symmetric trace routing to minimize CMRR degradation. |
| 2 | Non-inverting input (IN+) | Accepts sensor signals directly; 1 pA bias current enables direct connection to high-Z sources like photodiodes or capacitive MEMS. |
| 3 | Output (OUT) | Capable of sourcing/sinking ±16 mA; requires local 10 nF decoupling to VCC− and series resistor for unity-gain stability. |
| 4 | VCC− (GND) | Power return path; must be connected to low-impedance ground plane adjacent to decoupling capacitor. |
| 5 | VCC+ | Positive supply rail (2.5–5.5 V); connects to 10 nF ceramic capacitor placed ≤2 mm from pin per PCB layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in single-supply 3.3 V systems - e.g., measuring 0–3.3 V thermistor voltage without level-shifting circuitry. |
| Stable for gain ≥4 or ≤−3 | Eliminates need for external compensation in gain-of-5 sensor amplifiers, reducing BOM count and board area vs. unity-gain stable alternatives. |
| Ultra-low input bias current (1 pA typ) | Permits direct interfacing with >1 GΩ impedance sources (e.g., electrochemical gas sensors) without signal attenuation or drift. |
| Automotive temperature range (−40 °C to +125 °C) | Validated for under-hood engine control units and ADAS camera modules requiring uninterrupted operation across extreme thermal cycles. |
| Low THD+N (0.0014 %) | Preserves audio and ultrasonic signal fidelity in portable medical Doppler devices operating at 40 kHz carrier frequencies. |
Applications
| Automotive Cabin Sensors | Portable ECG Monitors |
|---|---|
Use Scenario: Amplifying microvolt-level signals from MEMS accelerometers in airbag deployment controllers. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in analog front-end, providing fixed gain of 100 with DC-coupled input. Use Value: 1.5 mV max offset ensures <150 µg zero-g error; 125 °C rating guarantees reliability during summer cabin heat soak testing. |
Use Scenario: Buffering and filtering biopotential signals from dry-electrode chest patches in Bluetooth-enabled Holter recorders. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with rail-to-rail output swing into 10 kΩ ADC input. Use Value: 1 pA input bias prevents electrode polarization drift; 820 µA quiescent current extends battery life to 7 days per charge. |
| Industrial Pressure Transmitters | Smart Home Gas Detectors |
Use Scenario: Conditioning bridge outputs from silicon piezoresistive pressure sensors in HVAC control valves. IC Role / Device Role / Timing Role: Low-noise, low-drift gain stage (G = 4) feeding 16-bit sigma-delta ADC with integrated PGA. Use Value: 21 nV/√Hz noise floor preserves resolution down to 0.05% FS; 2 μV/°C offset drift minimizes thermal recalibration frequency. |
Use Scenario: Amplifying current-mode output from electrochemical CO sensors in battery-powered residential alarms. IC Role / Device Role / Timing Role: Transimpedance amplifier with 100 kΩ feedback resistor, powered from 3.3 V coin cell. Use Value: Rail-to-rail output swings 0–3.3 V to match ADC reference; 5 kV HBM ESD withstand protects against user-handling discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911AIDT | 8 MHz GBP, unity-gain stable, 1.1 mA ICC, SO8 package | Lower bandwidth suits DC/low-frequency sensor amps; larger SO8 footprint increases board area | Select when unity-gain configuration is mandatory and 20 MHz bandwidth is unnecessary. |
| MCP6001T-E/OT | 1 MHz GBP, rail-to-rail I/O, 100 µA ICC, SOT23-5, no AEC-Q100 qualification | Lower power but insufficient bandwidth for active filtering; lacks automotive qualification and 5 kV ESD | Select only for cost-sensitive consumer applications outside automotive/industrial safety-critical domains. |
Compared with TSV911AIDT and MCP6001T-E/OT, the TSV991AIYLT uniquely combines AEC-Q100 qualification, 20 MHz bandwidth, and SOT23-5 packaging - making it the sole choice for space-constrained, high-speed automotive sensor nodes requiring production-grade reliability.
Availability
TSV991AIYLT is available at Aetrix Electronics and suitable for automotive cabin sensors, portable ECG monitors, industrial pressure transmitters, and smart home gas detectors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV991AIYLT 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, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.
The TSV99x family was engineered specifically for high-precision, low-power analog signal conditioning in battery-operated and automotive systems - emphasizing rail-to-rail operation, low input bias, and robust stability under capacitive loading.
FAQ
Is TSV991AIYLT unity-gain stable?
No. The TSV991AIYLT is internally compensated for minimum stable gain of 4 (non-inverting) or −3 (inverting). Using it in unity-gain follower mode requires external stabilization - typically a 10–47 Ω series resistor at the output or a feedback capacitor across Rf. Stability must be verified via bench measurement and SPICE simulation using ST's official macromodel.
What is the function of the exposed pad on the SOT23-5 package?
The exposed pad on the TSV991AIYLT's SOT23-5 package is not internally connected to any die node. Per STMicroelectronics' DFN8 and SOT23-5 layout guidelines, it may be left floating or soldered to the VCC− (ground) plane to improve thermal dissipation - but must never be tied to VCC+ or signal nets, as this risks latch-up or parametric shift.
How does the 1.5 mV max offset voltage impact sensor accuracy?
At 1.5 mV maximum input offset, the TSV991AIYLT introduces ≤0.3% full-scale error in a 500 mV sensor output span. For example, in a 0–100 kPa pressure sensor with 5 mV/kPa output, this corresponds to ≤0.3 kPa zero-point error - acceptable for Class 1.0 industrial transmitters but may require one-time calibration in Class 0.5 metrology applications.
Can TSV991AIYLT drive a 100 pF capacitive load directly?
Driving 100 pF directly is not recommended without external compensation. The datasheet specifies stability with 100 pF load only when gain ≥4 and Rf = 10 kΩ. For unity-gain or lower-gain configurations, add a 10–47 Ω series resistor at the output or a 1–10 pF capacitor across the feedback resistor to suppress peaking and ensure ≥45° phase margin.
TSV991AIYLT 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:
- 10V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 820µA
- Current - Output / Channel:
- 35 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
TSV991AIYLT FAQ
1.How can I place an order for TSV991AIYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV991AIYLT 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 TSV991AIYLT reliable?
The price and inventory of TSV991AIYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV991AIYLT is usually 5 days.
3.What payment methods are accepted for TSV991AIYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV991AIYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV991AIYLT?
TSV991AIYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV991AIYLT 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 TSV991AIYLT?
For technical support, including TSV991AIYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV991AIYLT requirements.
6.How does Aetrix verify that TSV991AIYLT is sourced from the original manufacturer or authorized distributors?
All TSV991AIYLT 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 TSV991AIYLT meets industry standards.
7.What is the process for return or replacement of TSV991AIYLT?
All TSV991AIYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSV991AIYLT, 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 TSV991AIYLT part is unused and in its original packaging.
Return procedure for TSV991AIYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV991AIYLT Tags
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LM358DT
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