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STMicroelectronics TSV522AIQ2T
- Part No.:
- TSV522AIQ2T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
TSV522AIQ2T.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,908
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Product details
Overview
TSV522AIQ2T from STMicroelectronics is a dual, rail-to-rail input/output operational amplifier optimized for ultra-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 and medical front-ends.
For engineers reviewing the TSV522AIQ2T datasheet, TSV522AIQ2T pinout, TSV522AIQ2T application, or TSV522AIQ2T equivalent, key selection criteria include its AEC-Q100 qualification, rail-to-rail operation across –40 °C to +125 °C, low-noise (57 nV/√Hz @ 1 kHz), unity-gain stability with 100 pF load, and DFN8 2×2 mm package suitability for space-constrained PCB layouts.
Technical Context
The TSV522AIQ2T 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 eliminating phase reversal. Its architecture maintains stable CMRR (76 dB typ. @ 5 V) and PSRR (87 dB typ.) across temperature while supporting unity-gain stable operation into capacitive loads up to 100 pF without external compensation.
It features a 0.89 V/μs slew rate and 0.002% THD+N at 1 kHz with 1 VPP output, making it suitable for precision active filtering and sensor signal amplification where DC accuracy and low distortion are critical - especially in automotive cabin sensors and portable diagnostic equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.15 MHz 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 automotive modules (e.g., door module wake-up circuits). |
| Input Offset Voltage | 800 μV max at 25 °C - ensures ≤0.8 mV DC error in 1× gain sensor interfaces without trimming. |
| Input Bias Current | 1 pA typ. - preserves signal integrity when amplifying outputs from piezoresistive or pH sensors with >1 GΩ source impedance. |
| Rail-to-Rail I/O | Input: VCC– – 0.1 V to VCC+ + 0.1 V; Output: within 35 mV of rails @ 10 kΩ - maximizes dynamic range in single-supply 3.3 V systems. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood and body-control module deployment per AEC-Q100 Grade 1. |
| ESD Rating | 4 kV HBM - withstands handling and assembly stress in automotive manufacturing environments. |
Pinout & Package
TSV522AIQ2T is housed in a thermally enhanced DFN8 2×2 mm package with exposed pad (connected to VCC– or left floating). The pinout supports standard dual op-amp functionality with independent inputs and outputs per channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1+) | Non-inverting input, Channel 1 | Accepts signals up to VCC+ + 0.1 V; compatible with high-side sensor bridges. |
| 2 (IN1–) | Inverting input, Channel 1 | Supports feedback networks; rail-to-rail common-mode range enables single-supply integrator designs. |
| 3 (OUT1) | Output, Channel 1 | Drives loads down to 10 kΩ while staying within 35 mV of supply rails. |
| 4 (VCC–) | Negative supply / ground reference | Exposed pad must be soldered for optimal thermal performance (RthJA = 57 °C/W). |
| 5 (IN2–) | Inverting input, Channel 2 | Electrically isolated from Channel 1; enables dual-path signal conditioning on one die. |
| 6 (IN2+) | Non-inverting input, Channel 2 | Matches IN1+ specs; allows differential pair configuration with matched layout. |
| 7 (OUT2) | Output, Channel 2 | Independent sourcing/sinking (36 mA typ. @ 5 V) - supports dual-sensor readout without cross-talk. |
| 8 (VCC+) | Positive supply | Accepts 2.7–5.5 V; internal regulation ensures stable biasing across voltage transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Validated for automotive Grade 1 (–40 °C to +125 °C) - eliminates requalification effort for ECU designs. |
| Rail-to-rail input & output | Full 0–5.5 V signal swing utilization - reduces need for level-shifting circuitry in 3.3 V microcontroller interfaces. |
| 1.15 MHz GBP at 45 μA | Industry-leading merit factor (25.6 kHz/μA) - enables higher bandwidth than competing micropower op-amps. |
| 1 pA input bias current | Enables <10 μV error from 10 MΩ source impedance - critical for electrochemical and strain gauge sensors. |
| Unity-gain stable with 100 pF | No external compensation required for capacitive sensor interfaces (e.g., touch panels, MEMS microphones). |
Applications
| Automotive Cabin Sensor Interface | Portable Medical Front-End |
|---|---|
|
Use Scenario: Amplifying low-level analog outputs from humidity, CO₂, and occupancy sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Dual-channel precision buffer and gain stage - one channel conditions sensor output, the other drives ADC reference or comparator threshold. Use Value: AEC-Q100 qualification and –40 °C to +125 °C operation ensure reliability in dashboard-mounted modules; rail-to-rail I/O maximizes SNR in 3.3 V ADC systems. |
Use Scenario: Signal conditioning for disposable ECG electrodes in handheld patient monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier (with external resistors) and anti-aliasing filter driver. Use Value: 1 pA input bias current prevents electrode polarization errors; 0.002% THD+N preserves waveform fidelity for arrhythmia detection algorithms. |
| Battery-Powered Industrial Logger | Active Low-Pass Filter for Automotive CAN Transceiver Bias |
|
Use Scenario: Conditioning thermistor and RTD signals in wireless data loggers powered by coin-cell batteries. IC Role / Device Role / Timing Role: Rail-to-rail input amplifier with programmable gain, followed by low-pass filtering before SAR ADC sampling. Use Value: 45 μA per channel extends 10-year battery life; 800 μV max Vio limits calibration drift over temperature without software correction. |
Use Scenario: Generating stable, low-noise bias voltage for CAN FD transceiver common-mode termination in ADAS domain controllers. IC Role / Device Role / Timing Role: Precision voltage follower supplying 2.5 V reference to CAN bus termination network. Use Value: 57 nV/√Hz input noise prevents corruption of differential CAN signal integrity; PSRR >85 dB rejects power rail ripple from switching regulators. |
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 |
|---|---|---|---|
| TSV632IYDT | Lower supply voltage (1.5 V min), 0.14 MHz GBP, 28 μA/ch - trades bandwidth for ultra-low-voltage operation. | Better suited for energy-harvesting systems with sub-2 V sources; insufficient GBP for 10 kHz sensor bandwidths. | Select when operating below 2.7 V or prioritizing sub-30 μA power over speed. |
| LMV822IDGKR | Higher GBP (5.5 MHz), 120 μA/ch, non-AEC-Q100 - optimized for speed, not automotive reliability. | Applicable in industrial test equipment but lacks automotive qualification and long-term stability data. | Select only for non-automotive applications requiring >1 MHz closed-loop bandwidth. |
Compared with TSV632IYDT, TSV522AIQ2T provides 8× higher bandwidth at modest power cost; versus LMV822IDGKR, it offers AEC-Q100 assurance and 2.7× lower quiescent current - making it the sole choice for production automotive signal chains needing both precision and qualification.
Availability
TSV522AIQ2T is available at Aetrix Electronics and suitable for automotive ECU design, portable medical instrumentation, and battery-powered industrial data loggers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TSV522AIQ2T 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 silicon solutions for automotive, industrial, and consumer markets since 1987.
The TSV52x series belongs to ST's precision analog portfolio, engineered specifically for low-power, high-accuracy signal conditioning in harsh automotive environments - emphasizing AEC-Q100 compliance, rail-to-rail operation, and robustness against ESD and temperature extremes.
FAQ
Is TSV522AIQ2T pin-compatible with standard dual SO-8 op-amps?
No - TSV522AIQ2T uses an 8-pin DFN2×2 package with different pinout and footprint than MiniSO8 or SO-8. Its pin mapping (IN1+, IN1–, OUT1, VCC–, IN2–, IN2+, OUT2, VCC+) is optimized for compact layout but requires dedicated PCB land pattern; MiniSO8 variant TSV522AIDT exists for drop-in replacement in legacy designs.
Can TSV522AIQ2T drive a 1000 pF capacitive load directly?
No - the device is unity-gain stable only up to 100 pF. Driving 1000 pF requires an isolation resistor (≥100 Ω, per Figure 29) between output and load to maintain phase margin >55°; simulation and bench validation are mandatory to confirm stability with specific Rseries/Cload combinations.
What is the maximum allowable input voltage beyond rails?
The absolute maximum input voltage is (VCC– – 0.2 V) to (VCC+ + 0.2 V) per Table 1. Exceeding this risks latch-up or permanent damage; for inputs beyond rails (e.g., sensor fault conditions), external clamping diodes or series resistors limiting input current to <10 mA are required.
Does the exposed pad on the DFN8 package require connection?
Yes - the exposed pad improves thermal dissipation (RthJA drops from 57 °C/W to <40 °C/W with proper soldering to a thermal pad). ST recommends connecting it to VCC– (ground) via multiple vias to inner-layer copper pour; leaving it floating degrades thermal performance and may affect long-term reliability in high-temperature automotive use.
TSV522AIQ2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- 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-DFN (2x2)
TSV522AIQ2T FAQ
1.How can I place an order for TSV522AIQ2T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV522AIQ2T 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 TSV522AIQ2T reliable?
The price and inventory of TSV522AIQ2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV522AIQ2T is usually 5 days.
3.What payment methods are accepted for TSV522AIQ2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV522AIQ2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV522AIQ2T?
TSV522AIQ2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV522AIQ2T 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 TSV522AIQ2T?
For technical support, including TSV522AIQ2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV522AIQ2T requirements.
6.How does Aetrix verify that TSV522AIQ2T is sourced from the original manufacturer or authorized distributors?
All TSV522AIQ2T 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 TSV522AIQ2T meets industry standards.
7.What is the process for return or replacement of TSV522AIQ2T?
All TSV522AIQ2T units undergo pre-shipment inspection (PSI). If there is an issue with TSV522AIQ2T, 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 TSV522AIQ2T part is unused and in its original packaging.
Return procedure for TSV522AIQ2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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