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STMicroelectronics TSV522AIST
- Part No.:
- TSV522AIST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV522AIST.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:5,449
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Product details
Overview
TSV522AIST 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 only 45 μA per channel (5 V), features 800 μV max offset voltage, 1 pA typical input bias current, and AEC-Q100 qualification for Grade 1 (-40 °C to +125 °C) operation - enabling use in battery-powered sensor front-ends and automotive cabin control modules.
For engineers reviewing the TSV522AIST datasheet, TSV522AIST pinout, TSV522AIST application, or TSV522AIST equivalent, key selection criteria include its ultra-low quiescent current, rail-to-rail I/O capability across 2.7–5.5 V supply, guaranteed AEC-Q100 compliance, and stable unity-gain performance with 100 pF capacitive load - critical for precision analog sensing in space- and power-constrained designs.
Technical Context
The TSV522A employs complementary PMOS/NMOS input pairs to achieve true rail-to-rail input operation from VCC− − 0.1 V to VCC+ + 0.1 V, with seamless transition between input stages across the common-mode range. Its architecture maintains >55° phase margin and 7 dB gain margin while driving 10 kΩ loads, ensuring stability without external compensation.
It operates over full industrial and automotive temperature ranges (−40 °C to +125 °C) with guaranteed specifications at 2.7 V, 3.3 V, and 5 V supplies. Input offset drift is limited to 3–18 µV/°C, and long-term drift is specified at 0.7 µV/month - supporting high-accuracy, maintenance-free sensor interfaces in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.15 MHz typ. at 5 V - enables stable closed-loop operation up to ~100 kHz in unity-gain buffer or low-gain configurations. |
| Supply Current per Channel | 45 μA typ. at 5 V - extends battery life in always-on sensor nodes (e.g., tire pressure monitors, seat occupancy detection). |
| Input Offset Voltage | 800 μV max at 25 °C - reduces DC error in precision instrumentation amplifiers and bridge sensor readouts. |
| Input Bias Current | 1 pA typ. - preserves signal integrity when interfacing with high-impedance sources (e.g., pH electrodes, piezoelectric sensors). |
| 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 Supply Range | 2.7 V to 5.5 V - supports direct connection to Li-ion (3.0–4.2 V), 3.3 V logic, and 5 V legacy automotive domains. |
| AEC-Q100 Qualification | Grade 1 (−40 °C to +125 °C) - validated for under-hood and cabin applications including HVAC, lighting control, and ADAS auxiliary sensors. |
Pinout & Package
TSV522AIST 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 improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN1− | Inverting input of Channel 1 - accepts differential or single-ended signals; rail-to-rail capable. |
| 2 | IN1+ | Non-inverting input of Channel 1 - high-impedance node (1 pA bias current); compatible with high-Z sensors. |
| 3 | VCC− | Negative supply rail - connects to ground in single-supply operation; thermal pad tied here improves power dissipation. |
| 4 | OUT1 | Output of Channel 1 - rail-to-rail swing (≤35 mV from rails into 10 kΩ) enables full utilization of ADC input range. |
| 5 | OUT2 | Output of Channel 2 - independently buffered; allows dual-path signal conditioning (e.g., differential pair + reference buffer). |
| 6 | IN2+ | Non-inverting input of Channel 2 - identical electrical characteristics to IN1+; supports matched dual-channel topologies. |
| 7 | IN2− | Inverting input of Channel 2 - symmetrical to IN1−; enables independent gain-setting for each amplifier. |
| 8 | VCC+ | Positive supply rail - accepts 2.7–5.5 V; internal ESD protection rated to 4 kV HBM ensures robustness in assembly and field use. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 45 μA per channel at 5 V - enables multi-year operation on coin-cell batteries in wireless sensor nodes. |
| Rail-to-rail input/output | Full-swing operation from VCC− − 0.1 V to VCC+ + 0.1 V - eliminates level-shifting circuitry in 3.3 V microcontroller interfaces. |
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation - meets automotive reliability requirements without derating or additional qualification testing. |
| Unity-gain stability with 100 pF load | No external compensation required - simplifies PCB layout and reduces BOM count in active filter and driver applications. |
| Low input offset drift | 3–18 µV/°C - minimizes temperature-induced calibration drift in medical thermistor or strain gauge amplifiers. |
Applications
| Automotive Cabin Sensors | Portable Medical Devices |
|---|---|
|
Use Scenario: Signal conditioning for NTC thermistors in HVAC temperature feedback loops and seat occupancy detection. IC Role / Device Role / Timing Role: Dual op-amp configured as precision non-inverting amplifier (Ch1) and reference buffer (Ch2) for ratiometric ADC measurement. Use Value: 1 pA input bias current prevents loading of high-resistance thermistor networks; rail-to-rail output ensures full ADC code utilization across 0–50 °C range. |
Use Scenario: Amplifying low-level bio-potential signals (e.g., ECG leads, pulse oximetry photodiodes) in handheld patient monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer and anti-aliasing filter driver. Use Value: 800 μV max offset and 1.15 MHz GBW support DC-coupled, low-noise (<60 nV/√Hz) amplification with minimal baseline wander. |
| Battery-Powered IoT Nodes | Active Filtering in Industrial Sensors |
|
Use Scenario: Signal chain front-end for LoRaWAN-enabled environmental sensors (CO₂, humidity, ambient light) operating on CR2032 cells. IC Role / Device Role / Timing Role: Dual-channel configuration: one channel for sensor excitation/buffering, second for reference voltage stabilization. Use Value: 45 μA per channel enables >5-year battery life at 1-sample-per-minute duty cycle; AEC-Q100 grade ensures longevity in uncontrolled storage conditions. |
Use Scenario: 2nd-order Sallen-Key low-pass filtering for vibration monitoring accelerometers in predictive maintenance gateways. IC Role / Device Role / Timing Role: Dual op-amp implementing unity-gain filter topology with precise pole placement via matched resistors/capacitors. Use Value: Unity-gain stability with 100 pF load eliminates need for isolation resistors; 55° phase margin guarantees monotonic step response without peaking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, rail-to-rail, low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV522IST | Standard-grade version (non-AEC-Q100); same electrical specs but rated for −40 °C to +85 °C only. | Suitable for commercial portable devices (e.g., consumer wearables), not automotive or extended-temp industrial use. | Select TSV522IST only if AEC-Q100 qualification and +125 °C operation are unnecessary - offers identical performance at lower cost. |
| LMV822IDGKR | Higher GBP (5.5 MHz), higher supply current (120 μA/ch), no AEC-Q100 rating, wider offset range (3.5 mV max). | Better for higher-speed active filters or fast-settling data acquisition, but unsuitable for battery-critical or automotive applications. | Choose LMV822 only when speed outweighs power and qualification needs - avoid where long battery life or automotive compliance is mandatory. |
Compared with TSV522AIST, TSV522IST sacrifices automotive qualification for cost savings in commercial designs, while LMV822IDGKR trades 2.7× higher current and no AEC-Q100 for 4.8× greater bandwidth - making TSV522AIST the optimal balance of ultra-low power, precision, and automotive reliability.
Availability
TSV522AIST is available at Aetrix Electronics and suitable for automotive cabin control, portable medical instrumentation, battery-powered IoT sensor nodes, and industrial active filtering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV522AIST 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 devices, and MEMS sensors for automotive, industrial, and consumer markets.
The TSV52x series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in battery-operated and automotive-grade applications - emphasizing rail-to-rail performance, AEC-Q100 compliance, and long-term stability.
FAQ
Is TSV522AIST pin-compatible with other dual op-amps in DFN8 2x2 packages?
TSV522AIST follows standard dual op-amp pinout (IN1−, IN1+, VCC−, OUT1, OUT2, IN2+, IN2−, VCC+) and is pin-compatible with industry-standard DFN8 dual op-amps like MCP6022 and TS912. However, verify supply voltage range and output drive capability - TSV522AIST operates down to 2.7 V and delivers ±36 mA, differing from some alternatives.
Can TSV522AIST drive capacitive loads without external compensation?
TSV522AIST is unity-gain stable with up to 100 pF capacitive load per output, per datasheet Figure 29. For loads >100 pF, add a series resistor (e.g., 10–100 Ω) between output and load capacitance to restore phase margin - confirmed by bench validation and SPICE simulation using ST's PSpice model.
What is the maximum allowable input voltage beyond the rails?
Per Absolute Maximum Ratings (Table 1), input voltage may extend to VCC− − 0.2 V and VCC+ + 0.2 V. Exceeding these limits risks latch-up or permanent damage. For overvoltage protection in noisy automotive environments, external clamping diodes with current-limiting resistors are recommended.
How does TSV522AIST perform in single-supply 3.3 V systems with rail-to-rail inputs?
At 3.3 V supply, TSV522AIST maintains full rail-to-rail input range (−0.1 V to +3.4 V) and output swing within 35 mV of rails into 10 kΩ. Its 1.15 MHz GBP and 0.75 V/μs slew rate support accurate amplification of 100 kHz sensor signals - verified in DS8862 Table 4 and Figure 7–8.
TSV522AIST 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
TSV522AIST FAQ
1.How can I place an order for TSV522AIST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV522AIST 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 TSV522AIST reliable?
The price and inventory of TSV522AIST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV522AIST is usually 5 days.
3.What payment methods are accepted for TSV522AIST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV522AIST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV522AIST?
TSV522AIST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV522AIST 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 TSV522AIST?
For technical support, including TSV522AIST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV522AIST requirements.
6.How does Aetrix verify that TSV522AIST is sourced from the original manufacturer or authorized distributors?
All TSV522AIST 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 TSV522AIST meets industry standards.
7.What is the process for return or replacement of TSV522AIST?
All TSV522AIST units undergo pre-shipment inspection (PSI). If there is an issue with TSV522AIST, 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 TSV522AIST part is unused and in its original packaging.
Return procedure for TSV522AIST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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