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STMicroelectronics TSV6191AILT
- Part No.:
- TSV6191AILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV6191AILT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,902
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Product details
Overview
TSV6191AILT from STMicroelectronics is a rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, low-voltage sensor signal conditioning. It delivers 450 kHz gain bandwidth, 10 µA supply current at 5 V, 800 µV max input offset voltage (A-grade), 1 pA typical input bias current, and operates from 1.5 to 5.5 V - enabling precision analog front-ends in battery-powered smoke detectors and portable medical sensors.
For engineers reviewing the TSV6191AILT datasheet, TSV6191AILT pinout, TSV6191AILT application, or TSV6191AILT equivalent, key selection criteria include guaranteed stability at gain ≥ 4, rail-to-rail I/O swing within 35 mV of rails under 10 kΩ load, -40 to 85 °C industrial temperature range, and SOT23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV6191AILT employs complementary PMOS/NMOS input stages to achieve true rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) without phase reversal. Its internal compensation ensures unity-gain stable operation only when configured for minimum closed-loop gain of 4 (non-inverting) or −3 (inverting).
Output stage design enables rail-to-rail swing with <35 mV headroom to both supply rails into 10 kΩ load, while maintaining 49–63 mA sourcing/sinking capability at 5 V. Input offset drift is tightly controlled at 2 µV/°C, supporting stable DC-coupled sensing over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.5 to 5.5 V - supports direct connection to single-cell Li-ion (3.0–3.7 V), alkaline (1.5 V), or regulated 3.3/5 V rails without level-shifting. |
| Gain Bandwidth Product | 450 kHz typ - enables stable amplification of low-frequency sensor signals (e.g., thermistor, ECG, gas sensor outputs) up to ~90 kHz at gain = 5. |
| Input Offset Voltage | 800 µV max (A version) - ensures ≤0.8 mV DC error in precision DC-coupled gain stages, critical for high-resolution ADC interfacing. |
| Supply Current | 10 µA typ at 5 V - extends battery life to years in always-on smoke detectors or wearable health monitors operating from coin cells. |
| Input Bias Current | 1 pA typ - prevents significant voltage error across high-impedance sources (e.g., pH electrodes, photodiodes, piezoresistive sensors). |
| CMRR | 80 dB min at 5 V - rejects common-mode noise from noisy digital supplies or shared ground paths in mixed-signal systems. |
| Slew Rate | 0.08 V/µs - sufficient for settling <1% in <10 µs on 1 V step inputs, adequate for slow-varying biosignals and environmental sensors. |
Pinout & Package
SOT23-5 package: 5-pin, surface-mount, ultra-compact footprint (2.9 × 1.6 × 1.1 mm), lead-free and RoHS-compliant per ECOPACK® specifications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node; connects to feedback network in inverting configurations or sensor reference in differential amplifiers. |
| 2 | Non-inverting Input (+) | Differential input node; accepts high-impedance sensor signals directly due to 1 pA bias current. |
| 3 | Ground / Negative Supply (VCC−) | Reference return path; must be decoupled with 10 nF capacitor placed <1 mm from pin per layout guidelines. |
| 4 | Output (Out) | Push-pull rail-to-rail output capable of driving 10 kΩ loads to within 35 mV of either rail. |
| 5 | Positive Supply (VCC+) | Power input; accepts 1.5–5.5 V; requires local 10 nF ceramic decoupling to suppress supply noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Common-mode range extends 0.1 V beyond both supply rails - enables direct interfacing to sensors operating near ground or VCC without external level shifters. |
| Stable at gain ≥ 4 | Internally compensated for minimum closed-loop gain of 4 - eliminates need for external compensation components in most sensor amplifier designs. |
| Ultra-low input bias current | 1 pA typical - avoids loading errors in megohm-range sensor bridges, capacitive touch interfaces, and electrochemical cell measurements. |
| Low input offset drift | 2 µV/°C - maintains DC accuracy across industrial temperature range without recalibration in field-deployed equipment. |
| Wide supply range | 1.5 to 5.5 V operation - allows single-supply use with primary batteries (1.5 V), Li-ion (3.0–4.2 V), or standard logic rails (3.3/5 V). |
Applications
| Smoke Detector Signal Chain | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying weak ionization chamber current (pA–nA) in battery-powered residential smoke alarms. IC Role / Device Role / Timing Role: Primary transimpedance amplifier with rail-to-rail output driving ADC reference buffer. Use Value: 10 µA quiescent current extends 10-year battery life; 1 pA bias current prevents signal loss across GΩ feedback resistors. | Use Scenario: Conditioning low-amplitude, low-frequency biopotential signals from dry electrodes in handheld ECG devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier gain block with DC-coupled input and 450 kHz bandwidth. Use Value: 800 µV max offset and 2 µV/°C drift ensure baseline stability during multi-minute recordings without AC coupling artifacts. |
| Proximity Sensor Interface | Thermistor-Based Temperature Monitor |
Use Scenario: Amplifying capacitance-to-voltage conversion output in IR proximity modules for smart home occupancy detection. IC Role / Device Role / Timing Role: Low-noise buffer and gain stage for switched-capacitor sensor readout circuits. Use Value: 110 nV/√Hz input noise preserves SNR in sub-millivolt sensor outputs; rail-to-rail I/O maximizes dynamic range at 1.8 V supply. | Use Scenario: Linearizing and amplifying resistance changes from NTC thermistors in HVAC control panels. IC Role / Device Role / Timing Role: Precision voltage follower and gain stage in ratiometric bridge configuration with reference voltage. Use Value: 800 µV max offset contributes <0.1 °C error in 10 kΩ @ 25 °C thermistor circuits; 1.5–5.5 V supply supports direct MCU VREF sourcing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV8511IDBVR | Lower GBP (170 kHz), higher supply current (25 µA), same 1.5–5.5 V range and rail-to-rail I/O. | Less suitable for higher-bandwidth sensor signals (>100 kHz); better for ultra-low-voltage 1.2 V systems. | Select TLV8511IDBVR only if supply current budget allows >2× increase and bandwidth demand is <150 kHz. |
| MAX44260ANA+ | Higher precision (10 µV offset), lower noise (35 nV/√Hz), but 30 µA supply current and 2.7–5.5 V range. | Better for medical-grade DC accuracy but incompatible with 1.5 V alkaline operation. | Choose MAX44260ANA+ only when sub-µV offset and ultra-low noise outweigh battery life and supply flexibility requirements. |
Compared with TLV8511IDBVR and MAX44260ANA+, the TSV6191AILT uniquely balances 450 kHz bandwidth, 10 µA consumption, 1.5 V minimum supply, and A-grade 800 µV offset - making it optimal for cost-sensitive, long-life, wide-supply industrial and consumer sensor nodes where moderate precision suffices.
Availability
TSV6191AILT is available at Aetrix Electronics and suitable for battery-powered smoke detectors, portable ECG monitors, proximity sensor modules, and thermistor-based temperature controllers requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for TSV6191AILT 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 chips, and MEMS sensors for industrial, automotive, and consumer markets.
The TSV619x family belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, rail-to-rail signal conditioning in energy-constrained sensor interfaces and portable instrumentation.
FAQ
What is the minimum recommended gain for stable operation of the TSV6191AILT?
The TSV6191AILT requires a minimum closed-loop gain of 4 (non-inverting) or −3 (inverting) to ensure phase margin ≥60° and prevent oscillation. This is due to internal compensation optimized for low-power operation; using unity-gain configurations will result in instability and ringing on step responses.
Can the TSV6191AILT operate from a 1.5 V alkaline battery throughout its discharge curve?
Yes - the TSV6191AILT is fully specified from 1.5 V to 5.5 V and maintains key parameters (GBP, offset, CMRR) across this range. At 1.5 V, supply current drops to ~6.5 µA, extending battery life significantly while retaining rail-to-rail I/O functionality down to VCC− + 0.1 V and VCC+ − 0.1 V.
Does the TSV6191AILT have built-in ESD protection, and what levels are rated?
Yes - the TSV6191AILT features integrated ESD protection rated at 4 kV HBM, 200 V MM, and 1.5 kV CDM per JEDEC standards. These ratings meet IEC 61000-4-2 Level 2 requirements for system-level robustness, eliminating need for external TVS diodes in most board-level implementations.
How does the rail-to-rail input architecture affect performance near supply rails?
The complementary PMOS/NMOS input stage transitions near VCC+ − 0.7 V, causing slight degradation in CMRR, PSRR, and offset voltage (±0.2 mV) within ±200 mV of either rail. However, the device remains fully functional and guaranteed phase-reversal-free across the full −0.1 V to VCC+ + 0.1 V common-mode range.
TSV6191AILT 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:
- 0.08V/µs
- Gain Bandwidth Product:
- 450 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 800 µV
- Current - Supply:
- 10.5µA
- Current - Output / Channel:
- 63 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSV6191AILT FAQ
1.How can I place an order for TSV6191AILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV6191AILT 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 TSV6191AILT reliable?
The price and inventory of TSV6191AILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV6191AILT is usually 5 days.
3.What payment methods are accepted for TSV6191AILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV6191AILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV6191AILT?
TSV6191AILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV6191AILT 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 TSV6191AILT?
For technical support, including TSV6191AILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV6191AILT requirements.
6.How does Aetrix verify that TSV6191AILT is sourced from the original manufacturer or authorized distributors?
All TSV6191AILT 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 TSV6191AILT meets industry standards.
7.What is the process for return or replacement of TSV6191AILT?
All TSV6191AILT units undergo pre-shipment inspection (PSI). If there is an issue with TSV6191AILT, 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 TSV6191AILT part is unused and in its original packaging.
Return procedure for TSV6191AILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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