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STMicroelectronics TSV522AIYST
- Part No.:
- TSV522AIYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV522AIYST.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
TSV522AIYST from STMicroelectronics is a dual, rail-to-rail input/output operational amplifier optimized for low-power, high-precision signal conditioning in automotive and portable systems. It delivers 1.15 MHz gain bandwidth at 45 μA per channel, 800 μV max offset voltage, 1 pA typical input bias current, and operates from 2.7 V to 5.5 V - enabling direct interfacing with high-impedance sensors in battery-powered automotive ECUs.
For engineers reviewing the TSV522AIYST datasheet, TSV522AIYST pinout, TSV522AIYST application, or TSV522AIYST equivalent, key selection criteria include its AEC-Q100 qualification, rail-to-rail operation across -40 °C to +125 °C, ultra-low quiescent current, and stable unity-gain performance with 100 pF capacitive loads.
Technical Context
The TSV522AIYST employs a complementary PMOS/NMOS input stage enabling true rail-to-rail input common-mode range (VCC− − 0.1 V to VCC+ + 0.1 V) and seamless transition between input pairs without phase reversal. Its architecture maintains CMRR ≥ 54 dB and PSRR ≥ 65 dB over temperature while supporting stable closed-loop operation with 100 pF capacitive loads.
It features a unity-gain-stable, internally compensated design with 55° phase margin and 7 dB gain margin at 5.5 V supply. The device achieves 0.89 V/µs slew rate and 57 nV/√Hz input voltage noise at 1 kHz, making it suitable for precision DC-coupled sensor front-ends and active filtering where power efficiency and accuracy are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.15 MHz typ. at 5 V - enables stable amplification of signals up to ~1 MHz with minimal phase lag in unity-gain buffer or gain-of-10 configurations. |
| Supply Current per Channel | 45 μA typ. at 5 V - supports >10-year battery life in always-on automotive sensor nodes drawing <90 μA total for dual-channel operation. |
| Input Offset Voltage | 800 μV max. at 25 °C - ensures ≤0.8 mV baseline error in 12-bit ADC interfaces with 2.5 V reference (0.03% FSR contribution). |
| Input Bias Current | 1 pA typ. - permits use with >1 GΩ source impedances (e.g., piezoresistive or pH sensors) without significant voltage drop or drift. |
| Rail-to-Rail I/O | Input: VCC− −0.1 V to VCC+ +0.1 V; Output: within 35 mV of rails - maximizes dynamic range in single-supply 3.3 V or 5 V systems. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive applications including engine control, cabin air quality, and brake pressure sensing. |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - meets automotive reliability requirements for mission-critical analog signal chains. |
Pinout & Package
TSV522AIYST is housed in an 8-pin DFN package (2 mm × 2 mm, 0.5 mm pitch) with exposed thermal pad. Pin 1 is marked by a dot; the exposed pad may be connected to VCC− or left floating for PCB layout flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1−) | Inverting input, Channel 1 | Differential node for negative feedback configuration; accepts signals down to VCC− −0.1 V. |
| 2 (IN1+) | Non-inverting input, Channel 1 | High-impedance sensor interface point; supports rail-to-rail common-mode range. |
| 3 (OUT1) | Output, Channel 1 | Delivers rail-to-rail swing (within 35 mV of VCC±); drives 10 kΩ load or ≥100 pF capacitive load with series resistor. |
| 4 (VCC−) | Negative supply rail | Ground reference for single-supply operation; connects to PCB ground plane or system return. |
| 5 (VCC+) | Positive supply rail | Accepts 2.7–5.5 V; decoupling capacitor (100 nF) required within 2 mm for stability. |
| 6 (IN2−) | Inverting input, Channel 2 | Independent second channel input; pin-compatible with industry-standard dual op-amp footprints. |
| 7 (IN2+) | Non-inverting input, Channel 2 | Enables dual-sensor acquisition (e.g., differential thermopile + ambient temp) on single IC. |
| 8 (OUT2) | Output, Channel 2 | Provides simultaneous signal conditioning without crosstalk; isolated output stage prevents inter-channel coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Complementary PMOS/NMOS pair extends common-mode range beyond supply rails, eliminating clipping in high-side/lower-side sensor biasing. |
| Ultra-low input bias current | 1 pA typ. enables direct connection to high-Z sources (e.g., glass electrode pH sensors) without guard rings or T-network compensation. |
| AEC-Q100 Grade 1 qualification | Validated for automotive environments: HTOL, TC, ESD (4 kV HBM), and latch-up immunity (200 mA) ensure robustness in ECU modules. |
| Unity-gain stability with 100 pF load | Internally compensated design eliminates need for external compensation components when driving ADC input capacitors or long PCB traces. |
| Low 1/f noise corner | 14 µVpp integrated noise (0.1–10 Hz) minimizes drift in DC-coupled medical instrumentation and precision weight scales. |
Applications
| Automotive Cabin Air Quality Sensor | Portable Blood Glucose Meter |
|---|---|
Use Scenario: Detecting CO₂ and VOC levels in vehicle HVAC systems using NDIR and metal-oxide sensors with microamp-level output currents. IC Role / Device Role / Timing Role: Dual-channel transimpedance amplifier and reference buffer - one channel converts photodiode current, the other buffers reference voltage for ratiometric ADC measurement. Use Value: 1 pA input bias avoids loading of high-impedance sensor elements; rail-to-rail output ensures full-scale utilization of 12-bit SAR ADC even at 3.3 V supply. | Use Scenario: Amplifying weak electrochemical current from disposable glucose test strips in handheld meters powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-power current-to-voltage converter and programmable gain stage - configured for 1 nA–1 µA input range with auto-zero calibration support. Use Value: 45 μA per channel extends battery life beyond 500 tests per CR2032 cell; 800 μV max offset enables ±10 mg/dL accuracy without factory trimming. |
| Industrial Battery Management System (BMS) | Medical ECG Front-End |
Use Scenario: Monitoring cell voltage and temperature in 12S Li-ion packs for e-bikes and power tools, operating across −20 °C to +70 °C ambient. IC Role / Device Role / Timing Role: Precision voltage buffer and thermistor signal conditioner - provides high-impedance isolation for 16-bit delta-sigma ADC inputs. Use Value: −40 °C to +125 °C rating covers extended junction temperatures during fast charging; 54 dB CMRR rejects common-mode noise from switching FETs. | Use Scenario: Biopotential amplification in wearable ECG patches requiring sub-μV resolution and >100 dB SNR at 1 kHz. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer - handles electrode half-cell potentials while rejecting motion artifacts via rail-to-rail common-mode handling. Use Value: 57 nV/√Hz input noise and 0.89 V/µs slew rate preserve QRS complex fidelity; AEC-Q100 qualification validates reliability for Class IIa medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV522IYST | Non-AEC-Q100 version; same electrical specs but not qualified for automotive temperature range or stress testing. | Suitable for industrial or consumer portable devices operating only to +85 °C ambient. | Select when automotive qualification is unnecessary and cost sensitivity is higher. |
| LMV822IDGKR | Higher GBP (5.5 MHz), higher ICC (160 μA/ch), no AEC-Q100 qualification, wider supply (2.7–5.5 V same). | Better for wideband active filters or audio preamps; unsuitable for battery lifetime-critical automotive nodes. | Choose only if bandwidth >1.15 MHz is mandatory and power budget allows 3.5× higher current draw. |
Compared with TSV522IYST, the TSV522AIYST adds guaranteed automotive reliability without sacrificing precision or power efficiency; versus LMV822IDGKR, it trades bandwidth for 3.3× lower supply current and validated automotive robustness - making it optimal for energy-constrained, safety-relevant signal chains.
Availability
TSV522AIYST is available at Aetrix Electronics and suitable for automotive sensor modules, portable medical diagnostics, and industrial battery monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV522AIYST 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 microcontrollers, analog ICs, power management, and automotive-grade components since 1987.
The TSV52x series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in harsh-environment applications - particularly automotive cabin sensing, portable diagnostics, and industrial IoT edge nodes.
FAQ
What is the maximum capacitive load the TSV522AIYST can drive without external compensation?
The TSV522AIYST is unity-gain stable with up to 100 pF capacitive load when configured as a voltage follower. For loads exceeding 100 pF, ST recommends adding a series resistor (e.g., 10–100 Ω) between the output and the capacitor to maintain phase margin above 55°, as verified in DS8862 Figure 29. No external compensation capacitor is required.
Does the exposed thermal pad on the DFN8 package require solder connection?
The exposed pad on the TSV522AIYST DFN8 package may be connected to VCC− (ground) or left electrically floating, per DS8862 page 2. Connecting it to VCC− improves thermal dissipation and reduces junction temperature by ~15 °C at 5.5 V/100 μA; floating is acceptable for space-constrained layouts where thermal margin exceeds 20 °C.
How does the input offset voltage drift behave over temperature?
The TSV522AIYST exhibits a maximum input offset voltage drift of 18 μV/°C over −40 °C to +125 °C, with typical drift of 3 μV/°C. At 125 °C, max Vio rises to 2400 μV (2.4 mV) - a predictable, linear deviation that can be calibrated out in production or compensated digitally in MCU-based systems.
Can the TSV522AIYST operate reliably from a 2.7 V single supply with rail-to-rail input?
Yes - the TSV522AIYST guarantees full rail-to-rail input operation (VCC− −0.1 V to VCC+ +0.1 V) and rail-to-rail output swing (within 35 mV of rails) at 2.7 V supply, with all key parameters (GBP, Vio, ICC) fully specified per DS8862 Table 3. Its complementary input stage remains functional across the entire common-mode range without phase reversal.
TSV522AIYST 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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.89V/µs
- Gain Bandwidth Product:
- 1.15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 45µA (x2 Channels)
- Current - Output / Channel:
- 55 mA
- Voltage - Supply Span (Min):
- 2.7 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
TSV522AIYST FAQ
1.How can I place an order for TSV522AIYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV522AIYST 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 TSV522AIYST reliable?
The price and inventory of TSV522AIYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV522AIYST is usually 5 days.
3.What payment methods are accepted for TSV522AIYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV522AIYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV522AIYST?
TSV522AIYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV522AIYST 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 TSV522AIYST?
For technical support, including TSV522AIYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV522AIYST requirements.
6.How does Aetrix verify that TSV522AIYST is sourced from the original manufacturer or authorized distributors?
All TSV522AIYST 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 TSV522AIYST meets industry standards.
7.What is the process for return or replacement of TSV522AIYST?
All TSV522AIYST units undergo pre-shipment inspection (PSI). If there is an issue with TSV522AIYST, 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 TSV522AIYST part is unused and in its original packaging.
Return procedure for TSV522AIYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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