My Inquiry
My Account
STMicroelectronics TSV6291AILT
- Part No.:
- TSV6291AILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV6291AILT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSV6291AILT from STMicroelectronics is a single-channel micropower CMOS operational amplifier optimized for precision, low-voltage, rail-to-rail input/output operation in battery-powered systems. It delivers 1.3 MHz gain bandwidth product, 29 µA typical supply current, 800 µV max input offset voltage (A-grade), and operates from 1.5 V to 5.5 V across –40 °C to +125 °C. It is used in sensor signal conditioning stages of portable medical monitors.
For engineers reviewing the TSV6291AILT datasheet, TSV6291AILT pinout, TSV6291AILT application, or TSV6291AILT equivalent, key selection criteria include its guaranteed A-grade offset voltage, minimum stable gain requirement (≥4), rail-to-rail I/O performance at 1.5 V, and SOT23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV6291AILT employs complementary PMOS/NMOS input differential pairs enabling true rail-to-rail input common-mode range (VCC– – 0.1 V to VCC+ + 0.1 V) and output swing within 35 mV of both rails under 10 kΩ load. Its internal compensation requires closed-loop gain ≥4 for stability, with phase margin ≥60° at 1.3 MHz GBP and 100 pF capacitive load.
It features ultra-low input bias current (1 pA typical), 2 µV/°C offset drift, and 80 dB CMRR at 5 V supply - all specified over full industrial temperature range. Unlike the TSV6290 series, it lacks shutdown functionality, simplifying biasing in always-on sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - enables direct operation from single-cell Li-ion (3.0–3.7 V), alkaline (1.5 V), or regulated 3.3 V/5 V rails without level-shifting. |
| Input Offset Voltage (max) | 800 µV - A-grade specification ensures ≤0.8 mV DC error in precision transducer amplification (e.g., 100 µV thermocouple signals). |
| Supply Current (typ) | 29 µA - supports >1-year battery life in coin-cell-powered IoT sensors with 10-second wake-up intervals. |
| Gain Bandwidth Product | 1.3 MHz - sufficient for anti-aliasing filters up to ~100 kHz and active sensor interface bandwidths in portable ECG front-ends. |
| Input Bias Current (typ) | 1 pA - minimizes voltage error across high-impedance pH electrode or photodiode feedback networks (>1 GΩ). |
| Rail-to-Rail I/O | Input: (VCC– – 0.1 V) to (VCC+ + 0.1 V); Output: within 35 mV of rails - maximizes dynamic range in low-voltage ADC driver applications. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive cabin sensors and industrial field transmitters. |
Pinout & Package
SOT23-5 micropackage (ECOPACK® compliant), 2.9 mm × 1.6 mm footprint, 0.95 mm pitch, 1.2 mm height - optimized for high-density portable PCBs with minimal thermal mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; must be decoupled with 10 nF capacitor near VCC pin to prevent oscillation. |
| 2 (–IN) | Inverting input | High-impedance node; sensitive to layout parasitics - requires guard ring and short trace routing in high-gain configurations. |
| 3 (VCC–) | Negative supply | Ground reference for single-supply operation; connects directly to PCB ground plane with low-inductance path. |
| 4 (+IN) | Non-inverting input | Accepts signals from VCC– – 0.1 V to VCC+ + 0.1 V; immune to phase reversal across full common-mode range. |
| 5 (VCC+) | Positive supply | Supports 1.5–5.5 V; requires local 10 nF ceramic decoupling to suppress supply noise coupling into input stage. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 29 µA typical ICC enables >5-year shelf life in battery-backed health wearables with intermittent sampling. |
| A-grade precision | 800 µV max VIO and 2 µV/°C drift ensure <±2 mV total error over –40 °C to +85 °C in glucose meter analog front-ends. |
| Rail-to-rail input/output | Full 0–5.5 V input range and 35-mV rail headroom preserve >98% of ADC full-scale range in 12-bit SAR converter interfaces. |
| High ESD tolerance | 4 kV HBM rating allows direct handling in uncontrolled assembly environments without additional protection circuitry. |
| Extended temperature range | –40 °C to +125 °C operation validated per AEC-Q200 stress tests - suitable for engine bay pressure sensor signal conditioning. |
Applications
| Portable Medical Sensors | IoT Environmental Monitors |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from disposable ECG electrodes in handheld cardiac analyzers. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in first-stage instrumentation chain, providing gain and DC-coupled buffering before 16-bit sigma-delta ADC. Use Value: 800 µV max offset and 1 pA bias current prevent baseline wander and loading errors on high-Z electrode interfaces, ensuring diagnostic-grade waveform fidelity. |
Use Scenario: Conditioning output of NDIR CO₂ sensors in battery-operated indoor air quality detectors. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent from IR detector diodes into stable voltage for low-power MCU ADC sampling. Use Value: Rail-to-rail output swing maximizes utilization of 3.3 V ADC reference, while 29 µA quiescent current extends 2-year battery life in maintenance-free deployments. |
| Automotive Cabin Sensors | Industrial Process Transmitters |
|
Use Scenario: Signal amplification for MEMS-based cabin humidity sensors in automotive HVAC control modules. IC Role / Device Role / Timing Role: Precision buffer isolating capacitive humidity sensor element from long PCB traces and digital noise sources. Use Value: –40 °C to +125 °C qualification and 75 dB SVR ensure stable 0.1% RH resolution despite engine heat soak and 12 V supply ripple. |
Use Scenario: 4–20 mA loop transmitter front-end for pressure transducers in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Low-drift amplifier driving voltage-to-current conversion stage with 0.05% FSO accuracy over temperature. Use Value: 2 µV/°C offset drift and 80 dB CMRR maintain calibration integrity across ambient shifts, reducing field recalibration frequency by 60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV6291ILT | Standard grade (6 mV max VIO vs. 0.8 mV), same package and specs otherwise. | Acceptable where system-level calibration compensates for higher offset, e.g., consumer-grade temperature sensors. | Select when cost sensitivity outweighs need for A-grade precision in non-critical signal paths. |
| MCP6001T-E/OT | Lower GBP (1 MHz), higher VIO (1.5 mV max), but unity-gain stable and wider supply range (1.8–6.0 V). | Better suited for unity-gain buffers or wide-input-voltage industrial controllers where stability trumps bandwidth. | Choose when design requires gain = 1 configuration or operation above 5.5 V, accepting trade-off in precision and speed. |
Compared with TSV6291AILT, the TSV6291ILT sacrifices A-grade offset for lower unit cost in volume production, while the MCP6001T-E/OT trades precision and bandwidth for unconditional unity-gain stability and extended voltage range - making each optimal for distinct architectural constraints.
Availability
TSV6291AILT is available at Aetrix Electronics and suitable for portable medical devices, IoT environmental monitors, and automotive cabin sensors requiring stable component supply with guaranteed A-grade parametric performance and SOT23-5 packaging.
Supply support for TSV6291AILT 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 analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
The TSV629x family belongs to ST's precision micropower op-amp product line, engineered specifically for ultra-low-power, high-accuracy signal conditioning in battery-constrained and harsh-environment applications.
FAQ
Is the TSV6291AILT unity-gain stable?
No, the TSV6291AILT is not unity-gain stable. It requires a minimum closed-loop gain of 4 (non-inverting) or |gain| ≥ 3 (inverting) to ensure phase margin ≥60° and prevent oscillation. For unity-gain applications, ST recommends the TSV620 or TSV630 families, which are explicitly designed for stability at G = 1.
What is the maximum capacitive load the TSV6291AILT can drive without compensation?
The TSV6291AILT is characterized for stability with up to 100 pF capacitive load when configured with gain ≥4 and resistive load ≥10 kΩ. Driving larger capacitive loads (e.g., >200 pF) requires external isolation resistor (≥500 Ω) in series with the output to maintain stability, as confirmed in Figure 5–7 of the datasheet.
Does the TSV6291AILT have a shutdown pin?
No, the TSV6291AILT does not include a shutdown function. That feature is exclusive to the TSV6290 series (e.g., TSV6290AILT). The TSV6291AILT is a simplified, always-on variant optimized for minimal external components and predictable quiescent behavior in continuous-sensing applications.
Can the TSV6291AILT operate from a 1.5 V supply?
Yes, the TSV6291AILT is fully specified and functional at 1.5 V supply, with verified rail-to-rail input/output performance, 1.1 MHz GBP, and 29 µA supply current. Electrical characteristics tables confirm operation down to 1.5 V, and Figures 2–4 validate output drive capability across this range.
TSV6291AILT 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:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 30µA
- Current - Output / Channel:
- 74 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSV6291AILT FAQ
1.How can I place an order for TSV6291AILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV6291AILT 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 TSV6291AILT reliable?
The price and inventory of TSV6291AILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV6291AILT is usually 5 days.
3.What payment methods are accepted for TSV6291AILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV6291AILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV6291AILT?
TSV6291AILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV6291AILT 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 TSV6291AILT?
For technical support, including TSV6291AILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV6291AILT requirements.
6.How does Aetrix verify that TSV6291AILT is sourced from the original manufacturer or authorized distributors?
All TSV6291AILT 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 TSV6291AILT meets industry standards.
7.What is the process for return or replacement of TSV6291AILT?
All TSV6291AILT units undergo pre-shipment inspection (PSI). If there is an issue with TSV6291AILT, 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 TSV6291AILT part is unused and in its original packaging.
Return procedure for TSV6291AILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV6291AILT 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…
