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STMicroelectronics TSV522IQ2T
- Part No.:
- TSV522IQ2T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
TSV522IQ2T.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,305
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Product details
Overview
TSV522IQ2T 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 (5 V), 800 μV max offset voltage, 1 pA typical input bias current, and operates from 2.7 V to 5.5 V supply - enabling direct interface with high-impedance sensors in battery-powered automotive ECUs.
For engineers reviewing the TSV522IQ2T datasheet, TSV522IQ2T pinout, TSV522IQ2T application, or TSV522IQ2T equivalent, key selection criteria include its AEC-Q100 qualification, rail-to-rail operation across -40 °C to +125 °C, unity-gain stability with 100 pF load, low-noise performance (57 nV/√Hz @ 1 kHz), and compatibility with space-constrained DFN8 2×2 mm packaging.
Technical Context
The TSV522IQ2T employs complementary PMOS/NMOS input stages to achieve true rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) without phase reversal, supporting sensor signals near supply rails. Its architecture enables simultaneous N- and P-pair conduction in mid-rail regions, improving speed and merit factor (1.15 MHz/45 μA).
It features internal compensation for unity-gain stability with up to 100 pF capacitive load, 55° phase margin, and 7 dB gain margin. Output drives ±36 mA (typ. @ 5 V) with 35 mV rail headroom into 10 kΩ, while maintaining <0.002% THD+N at 1 kHz and 1 Vpp output under 5.5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.15 MHz (typ. @ 5 V): supports stable closed-loop gain ≥1 up to ~1 MHz with minimal phase loss |
| Supply Current per Channel | 45 μA (typ. @ 5 V): enables >10-year battery life in always-on sensor nodes drawing <100 μA total |
| Input Offset Voltage | 800 μV (max @ 25 °C): ensures ≤0.8 mV baseline error in 12-bit ADC front-ends with 2.5 V reference |
| Input Bias Current | 1 pA (typ.): permits direct connection to >1 GΩ source impedances (e.g., piezoresistive, pH, or thermopile sensors) |
| 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 low-voltage systems |
| Operating Temperature | −40 °C to +125 °C: qualified per AEC-Q100 Grade 1 for under-hood automotive signal conditioning |
| ESD Robustness | 4 kV HBM: withstands handling and assembly stress without protection diodes degrading precision |
Pinout & Package
TSV522IQ2T is housed in a 2×2 mm DFN8 package with exposed thermal pad (connected to VCC− or left floating). Pin 1 is marked by a dot; top-view pinout is: Pin 1 = IN1+, Pin 2 = IN1−, Pin 3 = OUT1, Pin 4 = VCC−, Pin 5 = VCC+, Pin 6 = IN2−, Pin 7 = IN2+, Pin 8 = OUT2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (IN1+) | Non-inverting input, Channel 1 | Accepts rail-to-rail common-mode signals; connects directly to high-Z sensor outputs |
| Pin 2 (IN1−) | Inverting input, Channel 1 | Used for feedback or reference; 1 pA bias current minimizes resistor-induced offset errors |
| Pin 3 (OUT1) | Output, Channel 1 | Drives loads to within 35 mV of VCC+/VCC−; stable with 100 pF capacitive load |
| Pin 4 (VCC−) | Negative supply | Ground reference for single-supply operation; exposed pad may be tied here for thermal relief |
| Pin 5 (VCC+) | Positive supply | Accepts 2.7–5.5 V; PSRR >65 dB ensures immunity to supply ripple in noisy automotive environments |
| Pin 6 (IN2−) | Inverting input, Channel 2 | Independent second channel for differential sensing or dual-signal processing |
| Pin 7 (IN2+) | Non-inverting input, Channel 2 | Matches IN1+ specs; enables matched dual-channel configurations without layout asymmetry |
| Pin 8 (OUT2) | Output, Channel 2 | Electrically isolated from OUT1; allows independent gain/feedback networks per channel |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C ambient, including temperature cycling and HTOL |
| Rail-to-rail input without phase reversal | Guaranteed no output inversion when inputs exceed rails by 100 mV - critical for overvoltage-tolerant sensor interfaces |
| Unity-gain stable with 100 pF load | Eliminates need for external compensation in capacitive-sensor or long-cable applications (e.g., LIN bus transceivers) |
| Low 1/f noise corner | 14 µVpp integrated noise (0.1–10 Hz): preserves DC accuracy in medical ECG/EEG front-ends |
| High CMRR & PSRR | 76 dB CMRR and 87 dB PSRR (typ. @ 5 V): rejects common-mode interference and supply noise in motor-control feedback loops |
Applications
| Automotive Cabin Pressure Sensing | Portable Gas Detector Signal Chain |
|---|---|
|
Use Scenario: Measures differential pressure across HVAC ducts using MEMS piezoresistive sensor with 100 kΩ bridge impedance. IC Role / Device Role / Timing Role: Dual op-amp configured as instrumentation amplifier (Ch1/Ch2) with 100× gain and rail-to-rail output driving 12-bit SAR ADC. Use Value: 1 pA input bias avoids bridge imbalance error; 800 μV offset contributes <0.1% FS error after calibration; AEC-Q100 ensures reliability over 15-year vehicle lifetime. |
Use Scenario: Amplifies weak current from electrochemical gas sensor (nA-level output) into voltage for µC ADC sampling. IC Role / Device Role / Timing Role: Transimpedance amplifier (Ch1) + buffer (Ch2) for sensor biasing and signal conditioning in battery-powered handheld detector. Use Value: 45 μA/channel current extends 2xAA alkaline battery life to >2 years in standby; rail-to-rail input captures full sensor dynamic range down to 0 V. |
| Medical Pulse Oximeter Analog Front-End | Industrial Battery Monitoring Unit |
|
Use Scenario: Conditions red/IR photodiode currents (100 nA–10 μA) in wearable pulse oximeter with optical isolation. IC Role / Device Role / Timing Role: Dual TIA configuration (Ch1/Ch2) with synchronous LED drive timing and correlated double sampling. Use Value: 57 nV/√Hz input noise preserves SNR for SpO₂ calculation; 1.15 MHz GBW supports 1 kHz modulation without phase lag distortion. |
Use Scenario: Monitors cell voltage and temperature in 12S Li-ion battery pack for e-bike BMS, operating from 3.3 V LDO. IC Role / Device Role / Timing Role: Precision buffer (Ch1) for voltage divider output + comparator reference buffer (Ch2) for overvoltage detection. Use Value: 2.7 V minimum supply enables direct LDO operation; 35 mV output headroom ensures accurate 3.65 V threshold detection at end-of-charge. |
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 |
|---|---|---|---|
| TSV522IYDT | Same die, MiniSO8 package (3.9×4.9 mm); 190 °C/W RthJA vs. 57 °C/W for DFN8 | Better manufacturability in through-hole or mixed-technology PCBs; higher thermal resistance limits power density | Select for legacy board compatibility or manual assembly; avoid in thermally constrained automotive modules |
| LMV822IDGKR | Higher GBP (5.5 MHz), but 120 μA/channel supply current; not AEC-Q100 qualified | Suitable for non-automotive portable audio or test equipment needing faster settling | Choose only if speed >1.15 MHz is mandatory and automotive qualification is unnecessary |
Compared with TSV522IQ2T, TSV522IYDT trades miniaturization for assembly flexibility, while LMV822IDGKR sacrifices power efficiency and automotive compliance for bandwidth - making TSV522IQ2T the optimal choice for space- and power-constrained AEC-Q100 designs.
Availability
TSV522IQ2T is available at Aetrix Electronics and suitable for automotive cabin control units, portable gas analyzers, medical wearable sensors, and industrial battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV522IQ2T 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 devices, and MEMS sensors for automotive, industrial, and consumer markets.
The TSV52x series was developed specifically for ultra-low-power, high-accuracy signal conditioning in harsh-environment applications - emphasizing AEC-Q100 reliability, rail-to-rail operation at sub-3 V, and minimal quiescent current without sacrificing AC performance.
FAQ
Is the TSV522IQ2T pin-compatible with other dual op-amps in DFN8 2×2 mm packages?
No - TSV522IQ2T uses a proprietary pinout (IN1+, IN1−, OUT1, VCC−, VCC+, IN2−, IN2+, OUT2) that differs from industry-standard dual op-amps like MCP6002 or TLV2372. Layout redesign is required; refer to Figure 1 in DS8862 Rev 4 for exact top-view mapping and dot-marked Pin 1 location.
Can the exposed thermal pad on the DFN8 package be left unconnected?
Yes - the exposed pad may be left floating per ST's recommendation, though connecting it to VCC− improves thermal performance by reducing RthJA from 57 °C/W to ~45 °C/W. No electrical connection is required; solder mask opening must match pad dimensions to ensure reliable reflow wetting.
What is the maximum capacitive load the TSV522IQ2T can drive without external compensation?
The device is unity-gain stable with up to 100 pF capacitive load (per Figure 29 and Table 3). For loads >100 pF, ST recommends adding a series resistor (e.g., 10 Ω for 1 nF, 100 Ω for 10 nF) between output and load - verified via bench testing and SPICE simulation using ST's PSpice model.
How does the TSV522IQ2T's input offset voltage drift compare between TSV522 and TSV522A variants?
TSV522A guarantees ≤2.4 mV max Vio over −40 °C to +125 °C (vs. 3.1 mV for TSV522), with tighter 3–18 µV/°C drift specification. The "A" suffix denotes enhanced screening for automotive-grade offset stability - confirmed in Tables 4 and 5 of DS8862 Rev 4 under temperature sweep conditions.
TSV522IQ2T 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:
- 1 mV
- 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)
TSV522IQ2T FAQ
1.How can I place an order for TSV522IQ2T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV522IQ2T 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 TSV522IQ2T reliable?
The price and inventory of TSV522IQ2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV522IQ2T is usually 5 days.
3.What payment methods are accepted for TSV522IQ2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV522IQ2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV522IQ2T?
TSV522IQ2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV522IQ2T 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 TSV522IQ2T?
For technical support, including TSV522IQ2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV522IQ2T requirements.
6.How does Aetrix verify that TSV522IQ2T is sourced from the original manufacturer or authorized distributors?
All TSV522IQ2T 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 TSV522IQ2T meets industry standards.
7.What is the process for return or replacement of TSV522IQ2T?
All TSV522IQ2T units undergo pre-shipment inspection (PSI). If there is an issue with TSV522IQ2T, 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 TSV522IQ2T part is unused and in its original packaging.
Return procedure for TSV522IQ2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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