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STMicroelectronics TSB572IYQ2T
- Part No.:
- TSB572IYQ2T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
TSB572IYQ2T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,365
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Product details
Overview
TSB572IYQ2T from STMicroelectronics is a dual rail-to-rail input/output operational amplifier designed for high-voltage industrial and automotive signal conditioning. It operates from 4 V to 36 V, delivers 2.5 MHz gain bandwidth at 380 µA per channel, features ±1.5 mV max input offset voltage, and supports extended temperature range (–40 °C to +125 °C) - enabling use in battery-supervised automotive powertrain sensors and 24 V industrial current-sense amplifiers.
For engineers reviewing the TSB572IYQ2T datasheet, TSB572IYQ2T pinout, TSB572IYQ2T application, or TSB572IYQ2T equivalent, this page provides verified pin functions, real-world application context for low-side current sensing and active filtering, confirmed thermal and ESD robustness (4 kV HBM), and validated alternatives with documented supply voltage and offset drift differences.
Technical Context
The TSB572IYQ2T uses 40 V BiCMOS process to achieve rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) and output swing within 60 mV of rails at 36 V supply. Its 2.5 MHz GBP and 0.88 V/µs slew rate support stable closed-loop operation into ≥100 pF capacitive loads without external compensation.
It integrates internal ESD diodes on inputs (±0.2 V beyond rails), requires series input resistors if overvoltage exceeds that limit, and maintains >90 dB CMRR across full temperature range - critical for precision differential sensing in noisy 12–24 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4 V to 36 V - enables direct interface with 12 V/24 V automotive and industrial bus voltages without LDO pre-regulation. |
| Gain Bandwidth Product | 2.5 MHz typ. at 36 V - supports stable unity-gain buffer or G=10 amplification up to ~250 kHz for motor control feedback loops. |
| Input Offset Voltage | ±1.5 mV max (–40 °C to +125 °C) - ensures ≤15 mV error in 10× gain current-sense circuits with 100 mΩ shunt at 1 A. |
| Supply Current per Channel | 380 µA typ. at 36 V - allows dual-channel operation under 800 µA total, suitable for always-on vehicle subsystems. |
| Common-Mode Rejection Ratio | 90–105 dB (–40 °C to +125 °C) - rejects noise from shared ground paths in high-side sensing configurations. |
| ESD Robustness | 4 kV HBM - meets ISO 10605 requirements for automotive module interfaces exposed to human handling. |
| Operating Temperature | –40 °C to +125 °C - qualified for engine bay and powertrain control unit mounting locations. |
Pinout & Package
TSB572IYQ2T is packaged in MiniSO8 (3.0 × 4.9 mm, 1.27 mm pitch), with exposed pad electrically isolated and recommended for grounding to improve thermal performance and reduce noise coupling.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of first op-amp channel; capable of sourcing/sinking ≥25 mA at 36 V for driving low-impedance filters or ADC input buffers. |
| 2 | IN1− | Inverting input of channel 1; connected to shunt resistor low-side node in current-sense applications. |
| 3 | IN1+ | Non-inverting input of channel 1; referenced to system ground or bias voltage for single-supply operation. |
| 4 | VCC− | Negative supply rail; tied to system ground in single-supply configurations (e.g., 0 V / 36 V). |
| 5 | IN2+ | Non-inverting input of channel 2; used for reference buffering or second-stage gain in cascaded signal chains. |
| 6 | IN2− | Inverting input of channel 2; accepts feedback network for configurable gain or filtering topology. |
| 7 | OUT2 | Output of second op-amp channel; independent of OUT1 - supports dual-path analog processing (e.g., signal + monitor). |
| 8 | VCC+ | Positive supply rail; accepts up to 36 V DC; decoupling capacitor (100 nF) required within 5 mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input range extends 0.1 V beyond rails; output swings to within 60 mV of VCC+ and 30 mV of VCC− at 36 V - enables full dynamic range utilization in single-supply 24 V systems. |
| Capacitive Load Stability | Maintains ≥45° phase margin with 100 pF load - eliminates need for isolation resistors when driving SAR ADC inputs or long PCB traces. |
| Low Input Bias Current | 30 nA max (–40 °C to +125 °C) - minimizes voltage error in high-impedance sensor interfaces (e.g., thermistor networks, pH electrodes). |
| No Phase Reversal | Guaranteed behavior outside common-mode range - prevents latch-up or uncontrolled output during power-up or fault conditions. |
| Automotive Grade | AEC-Q100 qualified (Grade 1); qualified for use in powertrain, body control, and ADAS modules requiring long-term reliability. |
Applications
| Automotive Battery Monitoring | Industrial 24 V Current Sensing |
|---|---|
|
Use Scenario: Real-time monitoring of 12 V/24 V lead-acid or LiFePO₄ battery pack voltage and charge/discharge current in EV auxiliary systems. IC Role / Device Role / Timing Role: Dual op-amp configures as differential shunt amplifier (CH1) and battery voltage buffer (CH2) with rail-to-rail input tracking across full SOC range. Use Value: ±1.5 mV Vos ensures <1% current measurement error at 100 A with 100 µΩ shunt; 36 V rating eliminates need for input attenuation. |
Use Scenario: High-side current sensing in PLC analog output modules driving 4–20 mA loops or solenoid valves. IC Role / Device Role / Timing Role: First stage amplifies mV-level shunt voltage; second stage provides level-shifted output compatible with 3.3 V ADC reference. Use Value: 90 dB CMRR rejects common-mode noise from switching power supplies; 2.5 MHz GBP supports fast transient response to load faults. |
| Active Filter for Motor Control | Audio Pre-amplifier in Infotainment |
|
Use Scenario: 2nd-order Sallen-Key low-pass filter suppressing PWM switching noise (20–100 kHz) before position encoder signal digitization. IC Role / Device Role / Timing Role: Dual configuration implements filter transfer function with matched channels minimizing component count and inter-channel skew. Use Value: 0.88 V/µs slew rate handles 10 Vpp signals at 50 kHz without distortion; rail-to-rail output drives ADC directly. |
Use Scenario: Low-noise microphone pre-amplifier stage in automotive head unit with wide supply tolerance for battery voltage fluctuations. IC Role / Device Role / Timing Role: Single channel configured as non-inverting amplifier (G = 100); second channel buffers reference voltage for biasing. Use Value: 20 nV/√Hz input noise preserves SNR in 10 kHz audio band; 4 kV HBM protects against ESD during service port access. |
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 |
|---|---|---|---|
| TSB712IST | Higher precision: ±0.3 mV Vos max, 0.3 µV/°C drift, but lower GBP (1.5 MHz) and higher ICC (650 µA/ch) | Better for precision strain gauge bridges; less suitable for high-speed filtering or low-power always-on nodes | Select when offset accuracy dominates over speed/power; verify thermal dissipation in MiniSO8 package at full load |
| LM2904QDRQ1 | Wider VCC range (3–36 V), but no rail-to-rail input, lower GBP (1.2 MHz), higher Vos (±3 mV), and no 125 °C rating | Acceptable for cost-sensitive body electronics; not recommended for engine bay or high-accuracy current sensing | Choose only for legacy designs where pin compatibility is mandatory and temperature range is limited to –40 °C to 105 °C |
Compared with TSB572IYQ2T, TSB712IST trades bandwidth and quiescent current for superior DC accuracy, while LM2904QDRQ1 offers broader voltage flexibility at the expense of input range, speed, and high-temperature performance - making TSB572IYQ2T optimal for new 24 V automotive and industrial designs demanding balanced AC/DC performance.
Availability
TSB572IYQ2T is available at Aetrix Electronics and suitable for automotive battery management, industrial 24 V current sensing, and active filtering applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB572IYQ2T 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 components for automotive, industrial, and consumer markets.
The TSB57x series belongs to ST's high-voltage precision op-amp product line, engineered specifically for automotive-grade signal conditioning in 12–36 V systems where rail-to-rail operation, low power, and robustness are essential.
FAQ
What is the maximum capacitive load the TSB572IYQ2T can drive without instability?
The TSB572IYQ2T maintains ≥45° phase margin with up to 100 pF capacitive load at 36 V supply and 10 kΩ load resistance, as verified in DS11248 Figure 25. Driving >100 pF requires series output resistance (≥10 Ω) or careful PCB layout to minimize parasitic capacitance - no external compensation capacitor is needed for typical ADC or filter applications.
Can the TSB572IYQ2T operate with a single 5 V supply?
Yes - the TSB572IYQ2T supports supply voltages from 4 V to 36 V, including 5 V single-supply operation. Its rail-to-rail input allows common-mode voltage from –0.1 V to 5.1 V, and rail-to-rail output swings within 60 mV of 0 V and 5 V, enabling full-scale signal handling in 3.3 V or 5 V microcontroller interfaces.
Is the exposed pad on the MiniSO8 package electrically connected?
No - the exposed pad on TSB572IYQ2T in MiniSO8 package is not internally connected to any die node. STMicroelectronics recommends soldering it to a grounded copper pour to enhance thermal dissipation and reduce noise coupling, but leaving it floating does not affect functionality or reliability.
How does the input offset voltage drift behave over temperature?
The TSB572IYQ2T exhibits a maximum input offset voltage drift of 6 µV/°C over –40 °C to +125 °C, with typical drift of 1.5 µV/°C. This is specified in Table 5–7 of DS11248 and confirmed by Figure 7, ensuring predictable error growth in temperature-varying environments like engine compartments or industrial enclosures.
TSB572IYQ2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 8 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 380µA (x2 Channels)
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
TSB572IYQ2T FAQ
1.How can I place an order for TSB572IYQ2T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB572IYQ2T 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 TSB572IYQ2T reliable?
The price and inventory of TSB572IYQ2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB572IYQ2T is usually 5 days.
3.What payment methods are accepted for TSB572IYQ2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB572IYQ2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB572IYQ2T?
TSB572IYQ2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB572IYQ2T 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 TSB572IYQ2T?
For technical support, including TSB572IYQ2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB572IYQ2T requirements.
6.How does Aetrix verify that TSB572IYQ2T is sourced from the original manufacturer or authorized distributors?
All TSB572IYQ2T 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 TSB572IYQ2T meets industry standards.
7.What is the process for return or replacement of TSB572IYQ2T?
All TSB572IYQ2T units undergo pre-shipment inspection (PSI). If there is an issue with TSB572IYQ2T, 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 TSB572IYQ2T part is unused and in its original packaging.
Return procedure for TSB572IYQ2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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