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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSB571IYLT

Name: TSB571IYLT
Brand: STMicroelectronics
SKU: TSB571IYLT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSB571IYLT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: SC-74A, SOT-753

Datasheet:: TSB571IYLT.pdf

Description:: IC OPAMP GP 1 CIRCUIT SOT23-5

Quantity:: RFQ Add To RFQ list

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Inventory:6,714

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Product details

Overview

TSB571IYLT from STMicroelectronics is a single-channel, 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 supply current (typ. at 36 V), features ±1.5 mV input offset voltage (max), and supports extended temperature range from –40 °C to +125 °C - enabling use in engine control units and 24 V power supply monitoring.

For engineers reviewing the TSB571IYLT datasheet, TSB571IYLT pinout, TSB571IYLT application, or TSB571IYLT equivalent, this page provides verified electrical specifications, SOT23-5 package layout, automotive-grade reliability data, and real-world design context for low-power, wide-supply op amp selection.

Technical Context

The TSB571IYLT employs 40 V BiCMOS process technology to achieve rail-to-rail input common-mode range (V_CC– – 0.1 V to V_CC+ + 0.1 V) and output swing within 60 mV of rails at 36 V. Its internal architecture avoids phase reversal and maintains ≥45° phase margin with 100 pF capacitive load, ensuring stability in active filter and current-sense feedback loops.

It integrates ESD protection rated at 4 kV HBM and supports robust operation across –40 °C to +125 °C ambient, with input bias current ≤30 nA (max) and CMRR ≥105 dB (at 36 V), making it suitable for precision amplification in noisy automotive environments where supply rejection (SVR ≥104 dB) and long-term offset drift (1.5 µV/√month) are critical.

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 stable closed-loop gain up to ~100× at 25 kHz for anti-aliasing filters and sensor amplification.
Supply Current per Channel	380 µA (typ. at 36 V) - allows battery-powered or energy-constrained systems (e.g., remote sensors) to maintain performance without excessive quiescent loss.
Input Offset Voltage	±1.5 mV (max) - ensures <0.5% error in 300 mV full-scale current-sense applications at room temperature.
Common-Mode Rejection Ratio	105 dB (min at 36 V) - rejects >99.999% of common-mode noise in differential sensing configurations like shunt-based motor phase monitoring.
Slew Rate	0.88 V/µs (neg.), 1.00 V/µs (pos.) at 36 V - supports clean 10 kHz sine wave output with <0.001% THD+N into 10 kΩ load.
ESD Rating	4 kV HBM - meets ISO 10605 requirements for automotive electronics exposed to human handling and board-level assembly.

Pinout & Package

TSB571IYLT is housed in a 5-pin SOT23-5 surface-mount package (2.9 mm × 1.6 mm × 1.1 mm), optimized for space-constrained PCB layouts in automotive ECUs and industrial controllers. The exposed pad is optional and may be left floating or connected to ground for improved thermal dissipation.

Pin	Circuit Role	Design Meaning
1	OUT	Amplified output node; capable of sourcing/sinking ≥25 mA at 36 V, supporting direct drive of low-impedance loads or ADC input buffers.
2	VCC–	Negative supply terminal; referenced to system ground in single-supply configurations; must be decoupled with ≥100 nF ceramic capacitor.
3	IN+	Non-inverting input; rail-to-rail compatible; accepts signals from –0.1 V to VCC+ + 0.1 V, enabling direct connection to resistive sensor bridges.
4	IN–	Inverting input; used for feedback or differential configuration; internal ESD diodes require external series resistance if input exceeds rails by >0.2 V.
5	VCC+	Positive supply terminal; supports up to 40 V absolute max; recommended bulk + local decoupling (10 µF + 100 nF) for transient immunity in 24 V systems.

Key Features

Feature	Design Value
Rail-to-rail I/O	Input common-mode extends 0.1 V beyond supplies; output swings to within 60 mV of VCC+ and 30 mV of VCC– at 36 V - eliminates need for level-shifting in single-supply designs.
No phase reversal	Guaranteed under overdrive or rail violation conditions - prevents latch-up and uncontrolled output behavior during power sequencing or fault events.
Enhanced capacitive load stability	Maintains ≥45° phase margin with up to 100 pF load - enables direct driving of long traces, ADC input capacitance, or RC filtering without external compensation.
Automotive qualification	AEC-Q100 Grade 1 qualified (–40 °C to +125 °C) - validated for engine bay, transmission control, and ADAS subsystems requiring zero field failures.
Low input bias current	≤30 nA (max) - minimizes voltage error in high-impedance sensor interfaces (e.g., thermistors, pH electrodes) without requiring guard traces or active guarding.

Applications

Active Filtering

Automotive Current Sensing

Use Scenario: Second-order Sallen-Key low-pass filter for suppressing PWM switching noise in 48 V mild-hybrid DC/DC converter feedback loop.

IC Role / Device Role / Timing Role: Precision gain stage with 2.5 MHz GBP and rail-to-rail output - sets cutoff at 20 kHz while preserving transient response.

Use Value: Achieves >60 dB attenuation at 100 kHz with <0.1% group delay variation, eliminating aliasing in 1 MSPS current-loop ADC sampling.

Use Scenario: High-side shunt amplifier in 12 V starter-generator control module measuring bidirectional battery current up to ±200 A.

IC Role / Device Role / Timing Role: Differential input stage rejecting common-mode transients (e.g., load dump pulses) while amplifying 50 mV shunt voltage.

Use Value: Delivers 0.2% total measurement error over –40 °C to +125 °C due to low ΔVio/ΔT (6 µV/°C max) and 105 dB CMRR at 36 V.

Industrial Power Supply Monitoring

Audio Signal Conditioning

Use Scenario: Input voltage supervisor and overvoltage clamp circuit in DIN-rail mounted 24 V industrial PLC power module.

IC Role / Device Role / Timing Role: Comparator replacement with hysteresis via feedback - monitors 24 V rail with ±2% accuracy and fast response (<1 µs).

Use Value: Operates reliably across full 4–36 V range without auxiliary bias supply, reducing BOM count and improving MTBF in harsh factory environments.

Use Scenario: Line driver stage in automotive infotainment head unit, buffering DAC output to 600 Ω balanced audio interface.

IC Role / Device Role / Timing Role: Unity-gain stable buffer with 0.001% THD+N at 1 kHz - preserves dynamic range and stereo channel separation.

Use Value: Enables >100 dB SNR with 20 nV/√Hz input noise and 1.00 V/µs slew rate, meeting OEM audio fidelity requirements without external compensation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar rail-to-rail, wide-supply operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSB711IYLT	Lower quiescent current (100 µA typ.), reduced GBP (1.5 MHz), same 4–36 V range and rail-to-rail I/O.	Better suited for ultra-low-power always-on monitoring (e.g., battery voltage telemetry), but insufficient for 20 kHz filter bandwidth.	Select when supply current is primary constraint and bandwidth <1 MHz suffices; not drop-in for TSB571IYLT's 2.5 MHz requirement.
TSB572IYDT	Dual-channel version in SO8 package; identical per-channel specs (GBP, Vio, ICC), but larger footprint and higher thermal resistance (125 °C/W vs. 250 °C/W for SOT23-5).	Used where two matched amplifiers are needed (e.g., dual-slope ADC front-end), but requires PCB redesign and thermal derating above 50 mW.	Choose only when dual-channel functionality justifies package change and thermal trade-offs; pinout and electrical behavior are otherwise identical per channel.

Compared with TSB711IYLT, TSB571IYLT trades 2.8× higher supply current for 1.7× greater bandwidth and superior noise performance; versus TSB572IYDT, it offers identical analog performance in half the area and better thermal efficiency for single-channel deployments.

Availability

TSB571IYLT is available at Aetrix Electronics and suitable for automotive control units, industrial power supply supervision, and precision current sensing requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSB571IYLT 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 TSB571 belongs to ST's high-voltage, rail-to-rail op amp product line - engineered specifically for robust signal conditioning in automotive and industrial systems operating from 4 V to 36 V with guaranteed performance across –40 °C to +125 °C.

FAQ

Is TSB571IYLT qualified for automotive applications?

Yes, TSB571IYLT is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C), with full characterization across temperature, voltage, and lifetime stress tests per JEDEC standards. It includes 4 kV HBM ESD rating, long-term offset drift validation (1.5 µV/√month), and failure-in-time (FIT) data published in ST's reliability reports - meeting OEM requirements for engine control, body electronics, and ADAS subsystems.

Can TSB571IYLT drive a 100 pF capacitive load stably?

Yes, TSB571IYLT maintains ≥45° phase margin and <10% overshoot with 100 pF capacitive load at all supply voltages (4 V, 12 V, 36 V) and temperatures (–40 °C to +125 °C), as verified in DS11248 Figure 25 and Figure 26. No external compensation is required for typical ADC input or cable-driving applications, though layout best practices (short traces, local decoupling) remain essential.

What is the maximum output current capability of TSB571IYLT?

At 36 V supply, TSB571IYLT delivers ≥25 mA sink current and ≥20 mA source current (min) into resistive loads, as specified in Table 5 (I_out parameters). Output voltage swing remains rail-to-rail (within 60 mV of VCC+ and 30 mV of VCC–) up to 10 mA; beyond that, voltage compliance degrades linearly - confirmed in Figure 15 and Figure 14 of DS11248.

How does input bias current affect high-impedance sensor interfacing?

With max input bias current of 30 nA (–40 °C to +125 °C), TSB571IYLT introduces <3 mV error across a 100 kΩ sensor impedance - acceptable for most thermistor, RTD, or photodiode front-ends. Its BiCMOS input stage ensures bias current remains stable over temperature and supply voltage, unlike bipolar op amps where I_ib doubles every 10 °C rise, simplifying calibration in automotive cabin temperature sensors.

TSB571IYLT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 1

Output Type:: Rail-to-Rail

Slew Rate:: 1V/µs

Gain Bandwidth Product:: 2.5 MHz

-3db Bandwidth:: -

Current - Input Bias:: 8 nA

Voltage - Input Offset:: 1.5 mV

Current - Supply:: 380µA

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:: SOT-23-5

TSB571IYLT FAQ

1.How can I place an order for TSB571IYLT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSB571IYLT 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 TSB571IYLT reliable?

The price and inventory of TSB571IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB571IYLT is usually 5 days.

3.What payment methods are accepted for TSB571IYLT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB571IYLT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSB571IYLT?

TSB571IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSB571IYLT 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 TSB571IYLT?

For technical support, including TSB571IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB571IYLT requirements.

6.How does Aetrix verify that TSB571IYLT is sourced from the original manufacturer or authorized distributors?

All TSB571IYLT 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 TSB571IYLT meets industry standards.

7.What is the process for return or replacement of TSB571IYLT?

All TSB571IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSB571IYLT, 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 TSB571IYLT part is unused and in its original packaging.

Return procedure for TSB571IYLT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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