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STMicroelectronics TSB572IYST
- Part No.:
- TSB572IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSB572IYST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:7,159
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Product details
Overview
TSB572IYST from STMicroelectronics is a dual rail-to-rail input/output operational amplifier designed for high-voltage, low-power signal conditioning in automotive and industrial systems. 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) with 4 kV HBM ESD rating - enabling use in 12 V/24 V automotive power supply monitoring and precision current sensing.
For engineers reviewing the TSB572IYST datasheet, TSB572IYST pinout, TSB572IYST application, or TSB572IYST equivalent, this page provides verified package mapping (DFN8 3×3 mm), confirmed dual-channel pin assignment, real-world stability data vs. capacitive load, rail-to-rail common-mode behavior up to VCC±0.1 V, and validated alternatives for 4–36 V rail-to-rail op-amp selection.
Technical Context
The TSB572 employs BiCMOS process technology to achieve simultaneous rail-to-rail input/output swing, 2.5 MHz GBP, and ultra-low quiescent current (380 µA/ch at 36 V). Its input stage uses complementary P/N-channel input pairs to enable common-mode range from (VCC−) −0.1 V to (VCC+) +0.1 V, while the output stage delivers ±65 mA sink/source capability at 36 V with <150 mV output saturation voltage.
Stability is maintained across supply voltages (4–36 V) and temperatures (−40 °C to +125 °C) via internal compensation optimized for ≥100 pF capacitive loads - evidenced by ≥45° phase margin and <10% overshoot in step response testing. The device integrates ESD protection diodes on all inputs rated to 4 kV HBM without requiring external clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 36 V - enables direct interface with 12 V/24 V automotive batteries and industrial DC rails without LDO pre-regulation. |
| Gain Bandwidth Product | 2.5 MHz (typ. at 36 V) - supports closed-loop bandwidths up to ~200 kHz in unity-gain stable configurations for active filtering. |
| Input Offset Voltage | ±1.5 mV (max, −40 °C to +125 °C) - ensures ≤0.5% error in 300 mV full-scale current-sense applications at 125 °C. |
| Quiescent Current | 380 µA per channel (typ. at 36 V) - allows dual-channel operation under 1 mA total, critical for always-on automotive modules. |
| Common-Mode Input Range | (VCC−) −0.1 V to (VCC+) +0.1 V - permits direct sensing of signals referenced to either rail, e.g., high-side current measurement at VCC. |
| Output Drive Capability | ±65 mA (sink/source, min. at 36 V) - drives 10 kΩ loads with <150 mV saturation, supporting buffered outputs into ADC reference dividers. |
| ESD Rating | 4 kV HBM - meets ISO 10605 requirements for automotive electronics without external TVS diodes on signal paths. |
Pinout & Package
TSB572IYST is housed in a thermally enhanced DFN8 (3 × 3 mm, 0.55 mm height) package with exposed thermal pad. Pin 1 is marked by a dot; the exposed pad may be left floating or connected to VCC− for improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT1 | Output channel 1 | Low-impedance buffered output capable of sourcing/sinking ±65 mA at 36 V; rail-to-rail swing within 150 mV of rails. |
| 2 IN1− | Inverting input channel 1 | Differential input node with 30 nA max bias current; protected by internal ESD diodes to both supplies. |
| 3 IN1+ | Non-inverting input channel 1 | High-impedance (1 TΩ) input accepting common-mode voltages up to VCC+ +0.1 V for high-side sensing. |
| 4 VCC− | Negative supply voltage | Ground or negative rail reference; connects to exposed thermal pad when used for thermal enhancement. |
| 5 IN2+ | Non-inverting input channel 2 | Independent second channel input with identical specs to IN1+; enables dual-path signal conditioning. |
| 6 IN2− | Inverting input channel 2 | Matched to IN1− with same bias current and ESD protection; supports differential pair or independent amplification. |
| 7 OUT2 | Output channel 2 | Electrically isolated from OUT1; supports independent gain stages or parallel drive for higher output current. |
| 8 VCC+ | Positive supply voltage | Primary power input; accepts up to 40 V absolute max; supplies both channels and internal bias circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode extends 0.1 V beyond rails; output swings to within 150 mV of VCC+/VCC− - enables single-supply operation in 36 V systems. |
| Capacitive load stability | Maintains ≥45° phase margin with ≥100 pF load - eliminates need for external isolation resistors in sensor buffer or filter driver applications. |
| Automotive qualification | AEC-Q100 Grade 1 qualified (−40 °C to +125 °C) with 1.5 µV/√month long-term Vio drift - suitable for safety-critical body control modules. |
| Low-noise performance | 20 nV/√Hz input noise at 1 kHz and 0.7 µVpp (0.1–10 Hz) - preserves SNR in precision analog front-ends for battery voltage monitoring. |
| High PSRR & CMRR | 104 dB supply rejection and 129 dB common-mode rejection (at 36 V) - rejects ripple and ground bounce in noisy 24 V power systems. |
Applications
| Automotive Battery Monitoring | Industrial 4–20 mA Transmitter |
|---|---|
|
Use Scenario: Real-time measurement of 12 V/24 V lead-acid or LiFePO₄ battery voltage and current in ADAS ECUs. IC Role / Device Role / Timing Role: Dual-channel configuration: Channel 1 as high-side current sense amplifier (IN1+ to shunt high side), Channel 2 as battery voltage buffer (IN2+ to divider output). Use Value: Rail-to-rail input accepts 0–28 V common-mode; 2.5 MHz GBP enables fast transient response to load dumps; 380 µA/ch minimizes parasitic drain during sleep mode. |
Use Scenario: Signal conditioning and loop driving in programmable logic controller (PLC) analog output modules. IC Role / Device Role / Timing Role: Channel 1 buffers DAC output (0–5 V); Channel 2 configures as transconductance amplifier converting voltage to 4–20 mA with precision shunt feedback. Use Value: 36 V supply headroom accommodates 24 V loop supply + 5 V drop; ±65 mA output drives 1 kΩ load at 20 mA; 1.5 mV Vio ensures ≤0.03% FSR error over temperature. |
| Active EMI Filter Control | Audio Line Driver |
|
Use Scenario: Error amplification in active EMI filters suppressing conducted noise on DC power rails in EV chargers. IC Role / Device Role / Timing Role: Compensator in feedback path of active filter IC; compares sensed noise to reference and drives correction current. Use Value: 2.5 MHz GBP supports >100 kHz correction bandwidth; rail-to-rail output drives gate of correction MOSFET directly; 4 kV HBM withstands system-level ESD events. |
Use Scenario: Low-distortion line driver for automotive infotainment head units feeding amplified speakers. IC Role / Device Role / Timing Role: Dual-channel configuration: one channel as preamp (gain = 10), second as differential line driver (gain = 2) with balanced output. Use Value: THD+N = 0.001% at 1 kHz enables CD-quality audio; 0.7 µVpp low-frequency noise prevents audible hum; 125 °C rating survives under-dash mounting. |
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 max Vio, 0.5 µV/°C drift, but 650 µA/ch supply current and 1.7 MHz GBP. | Better for precision instrumentation (e.g., weigh scales), less suitable for battery-constrained automotive modules. | Select when offset accuracy dominates power budget; avoid where >380 µA/ch violates system sleep current targets. |
| LMV358QDRQ1 | Lower voltage range (2.7–5.5 V), 1 MHz GBP, 80 µA/ch, AEC-Q100 qualified but not 36 V rated. | Limited to low-voltage automotive domains (e.g., infotainment USB power control), cannot replace in 24 V systems. | Only viable if supply is strictly ≤5.5 V; unsuitable for any application requiring >6 V operation or rail-to-rail swing at 36 V. |
Compared with TSB712IST and LMV358QDRQ1, the TSB572IYST uniquely balances 4–36 V operation, 2.5 MHz bandwidth, sub-400 µA power, and automotive temperature range - making it the only option for dual-channel rail-to-rail amplification in 12/24 V always-on vehicle subsystems.
Availability
TSB572IYST is available at Aetrix Electronics and suitable for automotive battery management, industrial 4–20 mA transmitters, and active EMI filter control requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB572IYST 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 TSB572 belongs to ST's high-voltage, low-power operational amplifier product line - engineered specifically for robust signal conditioning in automotive powertrain and body electronics where wide supply range, rail-to-rail operation, and AEC-Q100 compliance are mandatory.
FAQ
Is TSB572IYST pin-compatible with SO8 or MiniSO8 versions of TSB572?
Yes - the DFN8 (3×3 mm) package shares identical pinout numbering and function with SO8 and MiniSO8 variants per DS11248 Rev 9, Table 2. Pin 1 (OUT1) through Pin 8 (VCC+) map identically across all three packages, enabling drop-in replacement in space-constrained designs without PCB redesign.
What is the maximum capacitive load the TSB572IYST can drive without external compensation?
The TSB572IYST maintains ≥45° phase margin and <10% overshoot with up to 500 pF capacitive load at 36 V supply, as verified in Figure 25 of DS11248 Rev 9. For loads >500 pF, a series isolation resistor (≥10 Ω) between output and capacitance is recommended to preserve stability.
Does the exposed thermal pad on TSB572IYST require solder connection?
No - the exposed pad may be left electrically floating per datasheet recommendation. However, connecting it to VCC− improves thermal resistance from 40 °C/W (DFN8) to ≤30 °C/W and reduces junction temperature by up to 15 °C at full load, enhancing reliability in 125 °C ambient environments.
Can TSB572IYST operate with single-supply 5 V while maintaining rail-to-rail output?
Yes - the device functions down to 4 V supply. At 5 V, output swing reaches within 12 mV of GND and 60 mV of 5 V (per Table 5, VOL/VOH at VCC = 4 V), and input common-mode includes GND to 5.1 V. This enables true single-supply operation in 5 V microcontroller-based sensor interfaces.
TSB572IYST 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
TSB572IYST FAQ
1.How can I place an order for TSB572IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB572IYST 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 TSB572IYST reliable?
The price and inventory of TSB572IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB572IYST is usually 5 days.
3.What payment methods are accepted for TSB572IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB572IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB572IYST?
TSB572IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB572IYST 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 TSB572IYST?
For technical support, including TSB572IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB572IYST requirements.
6.How does Aetrix verify that TSB572IYST is sourced from the original manufacturer or authorized distributors?
All TSB572IYST 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 TSB572IYST meets industry standards.
7.What is the process for return or replacement of TSB572IYST?
All TSB572IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSB572IYST, 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 TSB572IYST part is unused and in its original packaging.
Return procedure for TSB572IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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