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STMicroelectronics TSV522IYST
- Part No.:
- TSV522IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV522IYST.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:1,978
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Product details
Overview
TSV522IYST from STMicroelectronics is a dual, rail-to-rail input/output operational amplifier optimized for ultra-low-power sensor 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 2.7–5.5 V - enabling high-precision analog front-ends in battery-powered engine control units and medical wearables.
For engineers reviewing the TSV522IYST datasheet, TSV522IYST pinout, TSV522IYST application, or TSV522IYST 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 (57 nV/√Hz @ 1 kHz), and DFN8 2×2 mm package compatibility with space-constrained PCB layouts.
Technical Context
The TSV522IYST 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) and output swing within 35 mV of both rails under 10 kΩ load. Its architecture enables seamless transition between input pairs without phase reversal, critical for automotive sensor interfaces where input signals span full supply rails.
It features a stable 55° phase margin and 7 dB gain margin at unity gain, supporting robust closed-loop performance with capacitive loads up to 100 pF when used with recommended series output resistance. The device's 0.89 V/μs slew rate and 0.002% THD+N (5.5 V, 1 kHz) support accurate amplification of dynamic biomedical and engine knock signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.15 MHz typ. at 5 V - supports stable unity-gain buffers and 10× gain amplifiers up to ~115 kHz without peaking. |
| Supply Current per Channel | 45 μA typ. at 5 V - enables >10-year battery life in coin-cell-powered tire pressure sensors. |
| Input Offset Voltage | 800 μV max. at 25°C - ensures ≤0.8 mV error in 1 V full-scale bridge sensor outputs without trimming. |
| Input Bias Current | 1 pA typ. - preserves signal integrity from high-impedance pH or piezoelectric sensors (>1 GΩ source impedance). |
| Common-Mode Range | VCC− −0.1 V to VCC+ +0.1 V - accepts inputs directly from 0–5 V automotive sensors without level-shifting. |
| Output Swing | Within 35 mV of rails (10 kΩ to VCC/2) - maximizes dynamic range in 3.3 V ADC-driven data loggers. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood engine control modules and brake-by-wire ECUs. |
Pinout & Package
TSV522IYST is housed in a thermally enhanced DFN8 2×2 mm package with exposed pad (connected to VCC− or left floating). Pin 1 is marked by a dot; top view orientation follows JEDEC MO-229 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input, Channel 1 | Accepts feedback or inverted signal path; rail-to-rail compatible down to VCC− −0.1 V. |
| 2 | Non-Inverting Input, Channel 1 | High-impedance sensor input node; 1 pA bias current minimizes loading on resistive bridges. |
| 3 | Output, Channel 1 | Drives 10 kΩ load to within 35 mV of rails; stable with 100 pF capacitive load when series resistor added. |
| 4 | VCC− (Ground) | Reference for dual-supply operation or ground return in single-supply systems; connects to exposed pad. |
| 5 | VCC+ (Supply) | 2.7–5.5 V input; internal regulation ensures consistent 45 μA/channel current across voltage range. |
| 6 | Inverting Input, Channel 2 | Independent second channel input; identical specs to Channel 1 for differential sensor pair processing. |
| 7 | Non-Inverting Input, Channel 2 | Enables dual-channel instrumentation amplifier configurations without external matching components. |
| 8 | Output, Channel 2 | Provides simultaneous signal conditioning for redundant sensors or stereo biomedical acquisition paths. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input & output | Enables full 0–5 V signal capture from automotive sensors and direct interfacing to 3.3 V SAR ADCs without level shifters. |
| AEC-Q100 Grade 1 qualified | Validated for automotive powertrain and chassis applications operating continuously at −40°C to +125°C ambient. |
| Unity-gain stable with 100 pF load | Eliminates need for external compensation in active filter designs; supports direct connection to long PCB traces or cables. |
| Low input bias current (1 pA) | Prevents DC error accumulation in high-impedance pH electrode and photodiode transimpedance amplifier circuits. |
| High ESD tolerance (4 kV HBM) | Withstands assembly handling and in-vehicle electrostatic discharge events without latch-up or parameter shift. |
Applications
| Engine Knock Sensor Interface | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying low-amplitude, high-frequency (>5 kHz) piezoelectric signals from cylinder block-mounted knock sensors in gasoline engines. IC Role / Device Role / Timing Role: Dual-channel transimpedance and bandpass filtering stage; Channel 1 conditions raw sensor output, Channel 2 provides reference noise cancellation. Use Value: 1.15 MHz GBP and 0.89 V/μs slew rate preserve transient fidelity of knock events; rail-to-rail input captures full ±200 mV sensor swing without clipping. |
Use Scenario: Biopotential amplification in disposable wearable ECG patches powered by CR2032 batteries. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with selectable gain; configured as dual-input difference amplifier for lead-I/II derivation. Use Value: 45 μA/channel current extends battery life beyond 7 days; 1 pA input bias prevents electrode polarization drift during 24-hour continuous monitoring. |
| Automotive Cabin Air Quality Monitor | Industrial Battery Management System |
Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in HVAC control modules requiring low-power, high-accuracy analog front-ends. IC Role / Device Role / Timing Role: Low-noise preamplifier and active low-pass filter (cutoff = 10 Hz); rejects switching noise from nearby DC-DC converters. Use Value: 57 nV/√Hz input noise and 87 dB SVR ensure <1 ppm CO₂ measurement resolution; AEC-Q100 qualification guarantees reliability over 15-year vehicle lifetime. |
Use Scenario: Cell voltage monitoring in 12S Li-ion battery packs for e-bikes and energy storage systems operating across wide temperature ranges. IC Role / Device Role / Timing Role: Precision buffer and level shifter for isolated ADC inputs; handles 0–4.2 V cell voltages referenced to floating stack potentials. Use Value: Rail-to-rail input accepts signals down to 0 V relative to local ground; 800 μV max Vio limits cell voltage measurement error to <0.02% FS at 4.2 V full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV522IST | Same silicon die, MiniSO8 package (5.0 × 4.0 mm); 190°C/W RthJA vs. 57°C/W for DFN8. | Better suited for prototyping and manual soldering; less optimal for thermal-limited automotive modules. | Select when board reworkability or legacy footprint compatibility outweighs thermal performance needs. |
| LMV822IDGKR | Higher GBP (5.5 MHz), higher supply current (120 μA/ch), no AEC-Q100 qualification. | Targeted at industrial test equipment, not automotive safety-critical systems. | Choose only for non-automotive applications requiring faster settling or higher drive capability. |
Compared with TSV522IST, the TSV522IYST offers 3.4× lower thermal resistance for sustained operation in hot under-hood environments; compared with LMV822IDGKR, it trades bandwidth for 2.7× lower power and automotive qualification - making it the sole choice for AEC-Q100-compliant, battery-sensitive designs.
Availability
TSV522IYST is available at Aetrix Electronics and suitable for automotive engine control units, portable medical monitors, and industrial battery management systems requiring stable component supply with guaranteed long-term availability and AEC-Q100 compliance.
Supply support for TSV522IYST 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, power ICs, sensors, and analog products for automotive, industrial, and consumer markets.
The TSV52x series belongs to ST's precision low-power op amp product line, engineered specifically for signal integrity in harsh-environment automotive sensing and ultra-long-life portable instrumentation.
FAQ
What is the maximum capacitive load the TSV522IYST can drive without oscillation?
The TSV522IYST 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 pin and the capacitor to restore phase margin - verified via bench testing and SPICE simulation using ST's official PSpice model.
Does the exposed thermal pad on the DFN8 package require connection to a specific potential?
Yes - the exposed pad on the TSV522IYST DFN8 package must be soldered to a PCB copper pour connected to VCC− (ground in single-supply configurations). This connection reduces thermal resistance from junction to board by ~30%, ensuring reliable operation at 125°C ambient and preventing parametric shift due to self-heating.
How does the TSV522IYST handle input voltages beyond the supply rails?
The TSV522IYST tolerates input voltages from VCC− −0.1 V to VCC+ +0.1 V - meaning it accepts 5.6 V inputs on a 5.5 V supply. However, absolute maximum rating is ±VCC differential and (VCC− −0.2 V) to (VCC+ +0.2 V) absolute; exceeding these risks permanent damage. External clamping diodes are required for inputs beyond this range.
Is the TSV522IYST pin-compatible with other dual op amps in ST's portfolio?
No - the TSV522IYST DFN8 pinout (1:IN1−, 2:IN1+, 3:OUT1, 4:VCC−, 5:VCC+, 6:IN2−, 7:IN2+, 8:OUT2) is unique to the TSV52x family. It is not pin-compatible with TS912, TSV632, or LMV822. However, the MiniSO8 variant TSV522IST shares identical electrical specs and functional pin mapping, enabling drop-in replacement in through-hole designs.
TSV522IYST 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:
- 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-MiniSO
TSV522IYST FAQ
1.How can I place an order for TSV522IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV522IYST 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 TSV522IYST reliable?
The price and inventory of TSV522IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV522IYST is usually 5 days.
3.What payment methods are accepted for TSV522IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV522IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV522IYST?
TSV522IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV522IYST 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 TSV522IYST?
For technical support, including TSV522IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV522IYST requirements.
6.How does Aetrix verify that TSV522IYST is sourced from the original manufacturer or authorized distributors?
All TSV522IYST 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 TSV522IYST meets industry standards.
7.What is the process for return or replacement of TSV522IYST?
All TSV522IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSV522IYST, 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 TSV522IYST part is unused and in its original packaging.
Return procedure for TSV522IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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