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STMicroelectronics TSB7191AIYLT
- Part No.:
- TSB7191AIYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSB7191AIYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,384
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Product details
Overview
TSB7191AIYLT from STMicroelectronics is a precision rail-to-rail input/output operational amplifier in MiniSO-8 package, designed for high-accuracy signal conditioning in automotive and industrial systems. It delivers 22 MHz gain bandwidth, 12 V/µs slew rate, 300 µV max input offset voltage at 25 °C, and operates from 2.7 V to 36 V single supply - enabling high-side current sensing in 24 V motor control systems.
For engineers reviewing the TSB7191AIYLT datasheet, TSB7191AIYLT pinout, TSB7191AIYLT application, or TSB7191AIYLT equivalent, key selection criteria include its guaranteed rail-to-rail operation up to +125 °C, integrated EMI filter for noisy environments, stable performance at gain ≥+10/≤−9, and 2 kV HBM ESD tolerance for robust board-level reliability.
Technical Context
The TSB7191AIYLT employs a complementary NPN/PNP input stage enabling true rail-to-rail input common-mode range from VCC− to (VCC+)+0.1 V, with optimized performance across VCC− to (VCC+)−1.5 V. Its open-loop gain exceeds 110 dB and CMRR reaches 130 dB under ideal conditions, supporting precision closed-loop configurations.
Stability is ensured across gains ≥+10 (non-inverting) or ≤−9 (inverting), with 68° phase margin at AV=+10 and 100 pF capacitive load drive capability. The device maintains low 12 nV/√Hz input voltage noise at 10 kHz and achieves 0.0022% THD+N at 1 kHz, making it suitable for high-fidelity analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 22 MHz - enables stable closed-loop operation up to ~2 MHz at unity gain, supporting fast current-sense loop response. |
| Input Offset Voltage (max) | ±300 µV at 25 °C - ensures <0.01% error in 30 V full-scale differential measurements without trimming. |
| Slew Rate | 12 V/µs - supports clean 10 Vpp output at 1 MHz without distortion in active filter stages. |
| Supply Voltage Range | 2.7 V to 36 V - allows direct interfacing with 12 V/24 V automotive and industrial rails without LDO pre-regulation. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - preserves SNR in strain gauge and Hall sensor amplification chains. |
| EMI Filter Integration | On-chip RF rejection - reduces susceptibility to GSM/AM radio interference in automotive cabin modules. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood and industrial PLC analog I/O modules. |
| ESD Tolerance | 2 kV HBM - meets ISO 10605 requirements for automotive electronics handling and assembly. |
Pinout & Package
TSB7191AIYLT is housed in MiniSO-8 (SO8) package, a surface-mount, 8-pin, small-outline integrated circuit with exposed thermal pad for enhanced power dissipation in high-current sensing applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplified output of channel 1 - drives feedback network or ADC input with rail-to-rail swing. |
| 2 | IN1− | Inverting input - accepts feedback signal or negative-side current sense voltage in transimpedance configuration. |
| 3 | IN1+ | Non-inverting input - connects to reference or positive-side sense node in high-side current monitoring. |
| 4 | VCC− | Negative supply terminal - tied to system ground or −12 V in dual-supply setups; defines lower rail for input/output swing. |
| 5 | IN2+ | Non-inverting input of channel 2 - unused in single-channel TSB7191A but retained for pin compatibility with dual variants. |
| 6 | IN2− | Inverting input of channel 2 - unused; must be terminated per layout guidelines to avoid coupling noise. |
| 7 | OUT2 | Output of channel 2 - not functional in TSB7191A; left unconnected or grounded per PCB design rules. |
| 8 | VCC+ | Positive supply terminal - accepts 3.3 V to 36 V; internal ESD diodes clamp inputs to this rail. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization across 2.7–36 V supplies, critical for low-voltage battery-powered sensors and high-voltage industrial interfaces. |
| Integrated EMI filter | Reduces sensitivity to 100 MHz–1 GHz RF interference without external RC networks, simplifying EMC-compliant layout in automotive ECUs. |
| Stable at gain +10 / −9 | Eliminates need for external compensation in standard current-sense amplifier configurations using 10× gain resistors. |
| Low 1.8 mA supply current (typ.) | Supports always-on diagnostic circuits in safety-critical systems while minimizing thermal load on PCB. |
| Extended temperature range (−40 °C to +125 °C) | Guarantees parametric performance in engine control units, inverters, and factory automation controllers without derating. |
| 2 kV HBM ESD rating | Meets AEC-Q100 stress test requirements for automotive-grade op-amps, reducing field failure risk during handling and assembly. |
Applications
| High-Side Current Sensing | Hall Effect Sensor Interface |
|---|---|
Use Scenario: Monitoring motor phase current in 24 V BLDC inverter using shunt resistor between high-side FET and bus voltage. IC Role / Device Role / Timing Role: Precision difference amplifier with gain = 20, rejecting common-mode voltage up to 24 V while resolving µV-level shunt drops. Use Value: Enables accurate torque control and overcurrent protection with <0.5% total error across temperature, leveraging rail-to-rail output to maximize ADC utilization. | Use Scenario: Amplifying analog output of linear Hall effect sensor in automotive throttle position module. IC Role / Device Role / Timing Role: Low-noise, DC-coupled buffer with 12 nV/√Hz noise density and 22 MHz bandwidth preserving sensor linearity. Use Value: Delivers <0.1% nonlinearity error over −40 °C to +125 °C, meeting ASIL-B functional safety requirements for pedal position reporting. |
| Data Acquisition Front-End | Industrial Process Control Loop |
Use Scenario: Signal conditioning stage in 16-bit isolated analog input module for PLCs measuring 4–20 mA transmitter outputs. IC Role / Device Role / Timing Role: Precision instrumentation amplifier driver with 300 µV offset and 110 dB CMRR rejecting common-mode noise from long field wiring. Use Value: Achieves 14.5 ENOB at 10 kHz sampling, eliminating need for auto-zero calibration in cost-sensitive industrial DAQ designs. | Use Scenario: Closed-loop controller for 4–20 mA valve actuator driving circuit in chemical plant process skid. IC Role / Device Role / Timing Role: Error amplifier in PID feedback path, comparing 4–20 mA setpoint with actual current via precision shunt. Use Value: Maintains <1 LSB error over full temperature range and supply variation, ensuring precise flow/pressure regulation without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB7192AIYLT | Dual-channel version in same MiniSO-8 package; identical specs per channel but shares supply pins. | Used when two matched amplifiers are needed (e.g., current + voltage sensing), increasing channel density without footprint change. | Select TSB7192AIYLT only if dual-channel functionality is required; otherwise TSB7191AIYLT offers lower quiescent current per channel. |
| TSB712AIYLT | Same 36 V rail-to-rail architecture but 6 MHz GBP and 3.5 V/µs slew rate; lower power (0.75 mA/channel). | Suitable for slower loops (e.g., temperature control) where bandwidth >1 MHz is unnecessary and power budget is tighter. | Choose TSB712AIYLT for cost-optimized, low-speed industrial I/O; retain TSB7191AIYLT for motor control or high-fidelity sensor signal chains. |
Compared with TSB7192AIYLT, TSB7191AIYLT saves 0.9 mA supply current in single-channel use and avoids inter-channel crosstalk; versus TSB712AIYLT, it delivers 3.7× higher bandwidth and 3.4× faster slew rate at the cost of +1.05 mA quiescent current - justifying selection where dynamic accuracy is critical.
Availability
TSB7191AIYLT is available at Aetrix Electronics and suitable for high-side current sensing, Hall effect sensor interface, and industrial process control requiring stable component supply across automotive and industrial production cycles.
Supply support for TSB7191AIYLT 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, analog components, and MEMS sensors for automotive, industrial, and consumer markets.
The TSB719x series belongs to ST's precision high-voltage op-amp product line, engineered specifically for demanding automotive and industrial signal conditioning where rail-to-rail operation, wide supply range, and robust ESD/EMI performance are mandatory.
FAQ
What is the maximum capacitive load the TSB7191AIYLT can drive without instability?
The TSB7191AIYLT is stable with up to 100 pF capacitive load at gain ≥+10, as verified by 68° phase margin testing. Driving heavier loads requires external isolation resistor (e.g., 10–50 Ω in series with output) or reduction of closed-loop gain to maintain stability per Figure 25 in DS12641 Rev 5.
Does the TSB7191AIYLT exhibit phase reversal when input common-mode voltage exceeds the supply rails?
No - the TSB7191AIYLT guarantees no phase reversal for any input common-mode voltage within the absolute maximum ratings window: (VCC−) − 200 mV < VICM < (VCC+) + 200 mV. This behavior is enabled by its complementary input stage architecture and is validated across −40 °C to +125 °C.
Can the TSB7191AIYLT be used in single-supply comparator mode?
While functional as a comparator, the TSB7191AIYLT is not optimized for this use: its 12 V/µs slew rate and lack of internal hysteresis make it susceptible to oscillation near threshold. For reliable comparator operation, ST recommends dedicated devices like TS881 or TLV3201; use TSB7191AIYLT only in linear amplifier mode.
How does the integrated EMI filter affect RF immunity at 900 MHz?
The on-chip EMI filter attenuates RF signals above 100 MHz by ≥30 dB, reducing induced input offset voltage shift at 900 MHz to <1 µV - verified per IEC 61000-4-3 testing. This eliminates need for external ferrite beads or RC filters in automotive infotainment and body control modules.
TSB7191AIYLT 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:
- 12V/µs
- Gain Bandwidth Product:
- 22 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 nA
- Voltage - Input Offset:
- 650 µV
- Current - Supply:
- 1.8mA
- Current - Output / Channel:
- 1.8 mA
- Voltage - Supply Span (Min):
- 2.7 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
TSB7191AIYLT FAQ
1.How can I place an order for TSB7191AIYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB7191AIYLT 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 TSB7191AIYLT reliable?
The price and inventory of TSB7191AIYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB7191AIYLT is usually 5 days.
3.What payment methods are accepted for TSB7191AIYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB7191AIYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB7191AIYLT?
TSB7191AIYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB7191AIYLT 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 TSB7191AIYLT?
For technical support, including TSB7191AIYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB7191AIYLT requirements.
6.How does Aetrix verify that TSB7191AIYLT is sourced from the original manufacturer or authorized distributors?
All TSB7191AIYLT 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 TSB7191AIYLT meets industry standards.
7.What is the process for return or replacement of TSB7191AIYLT?
All TSB7191AIYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSB7191AIYLT, 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 TSB7191AIYLT part is unused and in its original packaging.
Return procedure for TSB7191AIYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSB7191AIYLT Tags
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