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STMicroelectronics TSB572IST
- Part No.:
- TSB572IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSB572IST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:2,515
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Product details
Overview
TSB572IST 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 -40 °C to 125 °C operation in SO8 package - enabling precision current sensing in 24 V battery systems.
For engineers reviewing the TSB572IST datasheet, TSB572IST pinout, TSB572IST application, or TSB572IST equivalent, this page provides verified pin functions, real-world application cards for low-side current sensing and active filtering, confirmed alternatives (TSB712, TSB571), and supply-chain support for automotive-grade procurement.
Technical Context
The TSB572IST uses 40 V BiCMOS process to achieve wide supply range (4–36 V) while maintaining 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. Its 2.5 MHz GBP and 0.88 V/µs slew rate are specified across full temperature and voltage range.
It integrates ESD protection (4 kV HBM), avoids phase reversal, and maintains ≥45° phase margin with 100 pF capacitive load. Input bias current stays ≤30 nA max over -40 °C to 125 °C, supporting high-impedance sensor interfaces without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 36 V - enables direct use in 12 V/24 V automotive and industrial power rails without LDO pre-regulation. |
| Gain Bandwidth Product | 2.5 MHz typ. at 36 V - supports stable closed-loop gain up to ~100× at 25 kHz for anti-aliasing filters. |
| Input Offset Voltage | ±1.5 mV max (−40 °C to 125 °C) - ensures ≤15 mV error in 10× gain current-sense amplifiers with 100 mΩ shunt. |
| Supply Current per Channel | 380 µA typ. at 36 V - allows dual-channel operation under 800 µA total, critical for always-on automotive modules. |
| Common-Mode Rejection | 95 dB min. (Vicm = VCC− to VCC+, Vout = VCC/2) - rejects supply ripple and ground noise in noisy motor-drive environments. |
| Slew Rate | 0.88 V/µs positive, 0.82 V/µs negative (36 V, 25 °C) - handles fast transients in overcurrent protection circuits without distortion. |
| ESD Robustness | 4 kV HBM - meets ISO 10605 requirements for automotive PCB-level ESD immunity without external protection diodes. |
Pinout & Package
TSB572IST is supplied in SO8 (Small Outline 8-pin) package with exposed pad (not electrically connected). Pin 1 is OUT1; pin numbering follows standard SO8 top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of channel 1 - drives feedback network or next-stage input; rail-to-rail swing supports full dynamic range utilization. |
| 2 | IN1− | Inverting input of channel 1 - accepts feedback signal in transimpedance or difference amplifier configurations. |
| 3 | IN1+ | Non-inverting input of channel 1 - connects to high-impedance sensor node or reference voltage with ≤30 nA bias current error. |
| 4 | VCC− | Negative supply rail - must be connected to system ground or negative rail; defines lower bound of input/output voltage range. |
| 5 | IN2+ | Non-inverting input of channel 2 - independent of channel 1; enables dual-sensor monitoring or stereo audio buffering. |
| 6 | IN2− | Inverting input of channel 2 - used for differential sensing or unity-gain inverter configuration without cross-talk. |
| 7 | OUT2 | Output of channel 2 - isolated from OUT1; supports separate signal paths such as dual-current sensing or active filter stages. |
| 8 | VCC+ | Positive supply rail - accepts up to 36 V DC; internal regulation not required due to wide operating range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode extends 0.1 V beyond rails; output swings within 60 mV of VCC+ and 50 mV of VCC− at 36 V - maximizes usable signal headroom in single-supply systems. |
| No phase reversal | Guaranteed behavior when input exceeds supply rails - eliminates latch-up risk in overvoltage fault conditions during power sequencing. |
| Capacitive load stability | Maintains ≥45° phase margin with 100 pF load - enables direct driving of ADC input capacitors or long PCB traces without external isolation resistor. |
| Automotive qualification | AEC-Q100 Grade 1 (−40 °C to 125 °C) - qualified for engine control, body electronics, and ADAS subsystems requiring zero field failures. |
| Low THD+N | 0.001% at 1 kHz, 7 Vpp output - preserves signal fidelity in audio line drivers and precision analog front-ends. |
Applications
| Low-Side Current Sensing | Active Filtering |
|---|---|
|
Use Scenario: Monitoring battery discharge current in 24 V automotive ECUs using a 10 mΩ shunt resistor. IC Role / Device Role / Timing Role: Dual op-amp configured as two independent difference amplifiers, each measuring voltage across one shunt leg with 100× gain. Use Value: ±1.5 mV Vos and 30 nA Ib ensure <1% measurement error at 1 A load; rail-to-rail output delivers full-scale signal to 12-bit ADC without level-shifting. |
Use Scenario: 2nd-order Sallen-Key low-pass filter (10 kHz cutoff) in motor control feedback loop to suppress PWM switching noise. IC Role / Device Role / Timing Role: One channel implements filter transfer function; second channel buffers filtered output before ADC sampling. Use Value: 2.5 MHz GBP and 0.88 V/µs slew rate prevent phase lag and distortion at cutoff frequency; 4 kV HBM protects against MOSFET switching transients. |
| Automotive Audio Preamp | Industrial Power Supply Monitor |
|
Use Scenario: Line-level preamplifier stage in infotainment head unit, accepting unbalanced RCA inputs. IC Role / Device Role / Timing Role: Non-inverting amplifier (gain = 10) with DC-coupled input; second channel buffers reference voltage for ADC biasing. Use Value: 0.001% THD+N preserves audio clarity; rail-to-rail output drives 10 kΩ load directly; 125 °C rating ensures reliability near heat-generating processors. |
Use Scenario: Real-time monitoring of 36 V DC bus voltage in solar charge controller, scaling to 3.3 V for microcontroller ADC. IC Role / Device Role / Timing Role: Precision attenuator (1:12 ratio) using matched external resistors; second channel compares scaled voltage to threshold for overvoltage shutdown. Use Value: 95 dB CMRR rejects common-mode noise from switching regulators; 380 µA quiescent current minimizes self-heating error in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB712 | Higher precision: ±0.5 mV Vos max, 0.3 µV/°C drift vs. TSB572IST's ±1.5 mV and 6 µV/°C; same 2.5 MHz GBP and 36 V range. | Targeted at high-accuracy sensor signal chains (e.g., strain gauge bridges) where offset drift dominates error budget. | Select TSB712 when Vos drift <1 µV/°C is mandatory; accept 20% higher cost and identical footprint. |
| TSB571 | Single-channel version of same BiCMOS process; identical electrical specs (Vos, GBP, supply range, temp grade) but half the channel count. | Used where only one amplifier is needed - e.g., single-shunt current monitor or mono audio buffer - reducing board area and BOM count. | Choose TSB571 for space-constrained designs requiring only one op-amp; pin-compatible replacement saves layout redesign time. |
Compared with TSB572IST, TSB712 trades wider offset tolerance for superior DC accuracy in precision measurement, while TSB571 reduces integration density to optimize cost and footprint in single-channel applications - both retain automotive qualification and 36 V operation.
Availability
TSB572IST is available at Aetrix Electronics and suitable for automotive battery management, industrial power supply monitoring, and audio system design requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB572IST 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 robust signal conditioning in harsh automotive and industrial environments where wide supply range and temperature resilience are mandatory.
FAQ
What is the maximum capacitive load the TSB572IST can drive without instability?
The TSB572IST maintains ≥45° phase margin with up to 100 pF capacitive load at 36 V supply, as verified in DS11248 Figure 25. Driving >100 pF requires an isolation resistor (≥10 Ω) between output and load to preserve stability - no external compensation capacitor is needed for typical ADC input or cable-driving applications.
Does the TSB572IST require external ESD protection in automotive designs?
No. The TSB572IST integrates 4 kV HBM ESD protection on all pins, meeting ISO 10605 Level 3 requirements for component-level immunity. External TVS diodes are unnecessary unless system-level surge testing (e.g., ISO 7637-2 Pulse 5a) mandates additional clamping - verified by ST's AEC-Q100 qualification report.
Can the TSB572IST operate from a single 5 V supply?
Yes. The TSB572IST functions down to 4 V supply, making it compatible with 5 V logic systems. At 5 V, its rail-to-rail input accepts 0–5 V signals, and output swings within 60 mV of rails - enabling direct interfacing with 5 V ADCs and microcontrollers without level shifters or charge pumps.
How does the input offset voltage drift affect accuracy in a 125 °C engine compartment application?
Over −40 °C to 125 °C, TSB572IST's ΔVio/ΔT is guaranteed ≤6 µV/°C. At 125 °C, worst-case Vos adds ≤1.05 mV (165 °C × 6 µV/°C) to room-temperature offset - contributing <0.1% error in a 10× gain current-sense circuit with 100 mΩ shunt and 1 A full scale, well within automotive ASIL-B requirements.
TSB572IST 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:
- 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-MiniSO
TSB572IST FAQ
1.How can I place an order for TSB572IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB572IST 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 TSB572IST reliable?
The price and inventory of TSB572IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB572IST is usually 5 days.
3.What payment methods are accepted for TSB572IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB572IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB572IST?
TSB572IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB572IST 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 TSB572IST?
For technical support, including TSB572IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB572IST requirements.
6.How does Aetrix verify that TSB572IST is sourced from the original manufacturer or authorized distributors?
All TSB572IST 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 TSB572IST meets industry standards.
7.What is the process for return or replacement of TSB572IST?
All TSB572IST units undergo pre-shipment inspection (PSI). If there is an issue with TSB572IST, 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 TSB572IST part is unused and in its original packaging.
Return procedure for TSB572IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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