My Inquiry
My Account
STMicroelectronics TSB7191IYLT
- Part No.:
- TSB7191IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSB7191IYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,910
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSB7191IYLT from STMicroelectronics is a precision rail-to-rail input/output operational amplifier in SOT23-5 package, designed for high-accuracy signal conditioning in wide-supply industrial and automotive 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, Hall-effect sensor interfacing, and motor control feedback loops.
For engineers reviewing the TSB7191IYLT datasheet, TSB7191IYLT pinout, TSB7191IYLT application, or TSB7191IYLT equivalent, key selection criteria include its guaranteed rail-to-rail operation up to +36 V, ±2 kV HBM ESD rating, -40 °C to +125 °C extended temperature range, and stability at gain ≥ +10 or ≤ -9 - critical for precision instrumentation and real-time control circuits.
Technical Context
The TSB7191IYLT employs a complementary NPN/PNP input stage to achieve true rail-to-rail input common-mode range (VCC− to VCC+ + 0.1 V), with optimized performance across VCC− to VCC+ − 1.5 V. Its internal EMI filter and integrated protection diodes support robust operation in noisy environments without external filtering.
It features unity-gain stable architecture with 68° phase margin at AV = +10, drives ≥100 pF capacitive loads, and maintains low THD+N (0.0022%) at 1 kHz - confirming suitability for closed-loop analog front-ends requiring fidelity and stability under varying load and supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 22 MHz - enables accurate amplification of signals up to ~1.5 MHz in closed-loop gain ≥10 configurations |
| Slew Rate | 12 V/µs - supports fast transient response in motor current feedback and pulse-width modulation (PWM) monitoring |
| Input Offset Voltage | ±300 µV max at 25 °C - ensures <0.01% error in 3.3 V–5 V measurement ranges without trimming |
| Supply Voltage Range | 2.7 V to 36 V single supply - eliminates need for dual supplies in 24 V industrial bus or 12 V automotive applications |
| Input Noise Density | 12 nV/√Hz at 10 kHz - preserves SNR in strain gauge and resistive transducer signal chains |
| Common-Mode Rejection | 115 dB (typ) at 25 °C, VCC− to VCC+ −1.5 V - rejects power rail noise in high-side shunt sensing |
| ESD Tolerance | 2 kV HBM - meets IEC 61000-4-2 Level 2 for board-level surge immunity without added protection |
Pinout & Package
SOT23-5 surface-mount package with exposed pad for thermal enhancement; compact footprint (2.9 mm × 1.6 mm) suitable for space-constrained PCB layouts in motor drivers and sensor modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail swing; capable of sourcing/sinking ≥20 mA at full temperature range |
| 2 (VCC−) | Negative supply terminal | Reference for dual-supply operation; tied to GND in single-supply configurations |
| 3 (IN+) | Non-inverting input | High-impedance node (≤300 nA bias current); accepts signals from VCC− to VCC+ + 0.1 V |
| 4 (IN−) | Inverting input | Used for precision closed-loop gain setting; differential input voltage limited to ±2 V |
| 5 (VCC+) | Positive supply terminal | Supports up to +36 V; internal ESD diodes clamp inputs to this rail during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage (2.7 V) and high-voltage (36 V) systems without headroom loss |
| Integrated EMI filter | Reduces susceptibility to RF interference in automotive and industrial environments without external RC filters |
| Stable at gain +10 / −9 | Eliminates need for external compensation in standard current-sense amplifier topologies (e.g., high-side shunt with gain = 100) |
| Extended temperature range | Guaranteed operation from −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| Low input offset drift | 2.8 µV/°C max - limits temperature-induced error to <0.25 mV over 85 °C ambient swing |
Applications
| High-Side Current Sensing | Hall Effect Sensor Interface |
|---|---|
Use Scenario: Monitoring battery pack or motor phase current using a shunt resistor placed between load and positive supply rail. IC Role / Device Role / Timing Role: Precision difference amplifier with gain ≥10, rejecting common-mode voltage up to 36 V while resolving µV-level shunt drops. Use Value: Enables accurate real-time current limiting and thermal management without sacrificing measurement resolution at low currents. | Use Scenario: Conditioning analog output from linear Hall sensors in BLDC motor commutation or position feedback systems. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail buffer and gain stage that preserves sensor linearity across full supply range and temperature extremes. Use Value: Maintains <0.1% total error over −40 °C to +125 °C, supporting ASIL-B functional safety requirements. |
| Data Acquisition Front-End | Motor Control Feedback Loop |
Use Scenario: Signal conditioning for 16-bit SAR ADC inputs in programmable logic controllers (PLCs) and test equipment. IC Role / Device Role / Timing Role: Anti-aliasing filter driver and level-shifter with 22 MHz bandwidth and low THD+N (0.0022%). Use Value: Preserves ENOB >15 bits at 100 kSPS by minimizing noise injection and settling time degradation. | Use Scenario: Amplifying back-EMF or current feedback signals in field-oriented control (FOC) algorithms for servo drives. IC Role / Device Role / Timing Role: High-speed error amplifier in inner current loop with 12 V/µs slew rate and 22 MHz GBP. Use Value: Supports PWM carrier frequencies up to 20 kHz while maintaining loop stability and phase margin ≥63°. |
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 |
|---|---|---|---|
| TSB7191IST | SOT23-5 package, identical electrical specs, but rated only to +105 °C (not +125 °C) | Not qualified for under-hood automotive or high-temp industrial enclosures | Select when ambient operating temperature stays below +105 °C and cost sensitivity outweighs extended temp requirement |
| TSB7192IYLT | Dual-channel version in MiniSO8; same GBP, offset, and supply range; shared VCC+/VCC− pins | Requires PCB redesign for dual-signal paths (e.g., current + voltage sensing); higher channel density | Choose for space-constrained dual-amplifier functions where layout area savings justify requalification effort |
Compared with TSB7191IST, the TSB7191IYLT adds 20 °C higher max operating temperature and AEC-Q100 qualification - critical for automotive engine control units. Versus TSB7192IYLT, it offers lower BOM count and simpler routing for single-channel applications, avoiding inter-channel crosstalk concerns in sensitive analog domains.
Availability
TSB7191IYLT is available at Aetrix Electronics and suitable for high-side current sensing, Hall effect sensor interfaces, and motor control feedback loops requiring stable component supply across automotive, industrial automation, and test equipment programs.
Supply support for TSB7191IYLT 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, specializing in power management, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.
The TSB7191 series belongs to ST's precision high-voltage op-amp product line, engineered specifically for accuracy-critical signal conditioning in harsh environments - emphasizing rail-to-rail operation, EMI resilience, and extended temperature reliability.
FAQ
What is the maximum capacitive load the TSB7191IYLT can drive without instability?
The TSB7191IYLT is specified to drive ≥100 pF capacitive loads while maintaining ≥63° phase margin at gain = +10. For loads exceeding 100 pF, external isolation resistance (e.g., 10–50 Ω in series with output) is required to preserve stability, as confirmed in Figure 25 of DS12641 Rev 5. No internal compensation adjustment is needed for standard PCB traces or typical sensor cable capacitances.
Does the TSB7191IYLT support dual-supply operation?
Yes - the TSB7191IYLT operates from ±1.35 V to ±18 V dual supplies, with full rail-to-rail input/output swing referenced to the negative rail. Pin 2 (VCC−) serves as the negative supply, and Pin 5 (VCC+) as the positive supply. Common-mode input range extends from VCC− to VCC+ + 0.1 V, enabling use in bipolar signal chains such as audio preamps or AC-coupled instrumentation.
How does the input stage transition affect performance near VCC+?
At common-mode voltages above VCC+ − 1.5 V, the TSB7191IYLT transitions from P-channel to N-channel input pair, causing measurable offset voltage shift and CMRR degradation (down to 95 dB). Designers should avoid sustained operation in this region - especially in high-precision DC-coupled applications - by biasing inputs within VCC− to VCC+ − 1.5 V, as validated in Figures 10 and 11 of the datasheet.
Is the TSB7191IYLT pin-compatible with other ST op-amps in SOT23-5?
No - the TSB7191IYLT uses a non-standard SOT23-5 pinout (OUT/VCC−/IN+/IN−/VCC+) distinct from ST's TSV911 or TSX911 families. Substitution requires PCB layout revision. Pin compatibility exists only within the TSB7191/TSB7192 family (e.g., TSB7191IST shares identical pinout but differs in temperature grade).
TSB7191IYLT 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:
- 1.2 mV
- 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
TSB7191IYLT FAQ
1.How can I place an order for TSB7191IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB7191IYLT 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 TSB7191IYLT reliable?
The price and inventory of TSB7191IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB7191IYLT is usually 5 days.
3.What payment methods are accepted for TSB7191IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB7191IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB7191IYLT?
TSB7191IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB7191IYLT 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 TSB7191IYLT?
For technical support, including TSB7191IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB7191IYLT requirements.
6.How does Aetrix verify that TSB7191IYLT is sourced from the original manufacturer or authorized distributors?
All TSB7191IYLT 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 TSB7191IYLT meets industry standards.
7.What is the process for return or replacement of TSB7191IYLT?
All TSB7191IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSB7191IYLT, 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 TSB7191IYLT part is unused and in its original packaging.
Return procedure for TSB7191IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSB7191IYLT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
