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STMicroelectronics TSV611ILT
- Part No.:
- TSV611ILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV611ILT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:40,430
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Product details
Overview
TSV611ILT from STMicroelectronics is a rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, low-voltage sensor signal conditioning. It delivers 120 kHz gain bandwidth product, 10 µA supply current at 5 V, and operates from 1.5 to 5.5 V supply - enabling use in battery-powered smoke detectors and portable medical instrumentation.
For engineers reviewing the TSV611ILT datasheet, TSV611ILT pinout, TSV611ILT application, or TSV611ILT equivalent, key selection criteria include its 1 pA input bias current, 800 µV max input offset voltage (A version), rail-to-rail output swing within 35 mV of rails, and guaranteed unity-gain stability with capacitive loads up to 100 pF.
Technical Context
The TSV611ILT employs complementary PMOS/NMOS input stages to achieve rail-to-rail input common-mode range from (VCC–) – 0.1 V to (VCC+) + 0.1 V. Its output stage uses Class AB architecture to deliver ±42 mA output current while maintaining rail-to-rail swing under 10 kΩ load.
It features internal compensation for unity-gain stability, exhibits 62° phase margin at 5 V, and maintains stable operation across –40 °C to +85 °C with <2 µV/°C input offset drift - critical for precision DC-coupled sensor front-ends.
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. |
| Supply Current | 10 µA typ at 5 V - enables >10-year battery life in coin-cell-powered devices drawing <1 µA average system current. |
| Gain Bandwidth Product | 120 kHz typ - sufficient for anti-aliasing filters, ECG amplification, and slow-sensing loops (e.g., CO₂ or temperature transducers). |
| Input Bias Current | 1 pA typ - minimizes voltage error in high-impedance pH electrode or photodiode interfaces (>1 GΩ source impedance). |
| Input Offset Voltage | 800 µV max (TSV611A variant) - ensures <0.8 mV baseline error in 12-bit ADC front-ends with 2.048 V reference. |
| Output Swing | Within 35 mV of rails at 10 kΩ load - preserves dynamic range in low-voltage systems (e.g., 1.8 V ADCs) without external level-shifting. |
| Phase Margin | 62° at 5 V - guarantees stable unity-gain follower operation with 100 pF capacitive load, eliminating need for isolation resistors in many layouts. |
Pinout & Package
SOT23-5 (SC70-5 compatible) package: 1.6 mm × 1.6 mm × 0.9 mm body, 0.95 mm pitch, thermally enhanced plastic surface-mount outline per JEDEC MO-178AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Class AB rail-to-rail output capable of sourcing 58 mA / sinking 52 mA into 10 kΩ load at 5 V. |
| 2 (IN–) | Inverting input | High-impedance node (1 pA bias) with rail-to-rail common-mode range; connects to feedback network in inverting configurations. |
| 3 (IN+) | Non-inverting input | High-impedance node with identical bias current; used for sensor voltage referencing or non-inverting gain stages. |
| 4 (VCC–) | Negative supply | Ground reference (0 V) in single-supply operation; must be decoupled with 10 nF capacitor placed ≤1 mm from pin. |
| 5 (VCC+) | Positive supply | 1.5–5.5 V input; accepts unregulated battery sources; requires local 10 nF ceramic decoupling for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode extends 0.1 V beyond rails; output swings to within 35 mV of VCC+ and VCC–, maximizing usable signal range in 1.8 V systems. |
| Ultra-low power | 10 µA supply current at 5 V enables continuous operation on CR2032 coin cells for >5 years in wake-on-event sensor nodes. |
| Unity-gain stable | No external compensation required - simplifies PCB layout for buffer, filter, and sensor interface circuits with minimal component count. |
| Low input offset drift | 2 µV/°C max ensures <10 µV total offset shift over –40 °C to +85 °C ambient - critical for medical-grade temperature measurement accuracy. |
| Capacitive load drive | Stable with up to 100 pF directly at output - eliminates series resistor in LCD bias, DAC output buffering, and piezo driver applications. |
Applications
| Smoke Detector Signal Chain | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying weak ionization chamber current (pA-level) into measurable voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current (1 pA) and rail-to-rail output to maximize SNR at 3.3 V supply. Use Value: Enables detection of sub-0.5% obscuration per foot using single AAA battery for >2 years without replacement. | Use Scenario: Buffering and filtering biopotential signals from dry electrodes before 12-bit SAR ADC digitization. IC Role / Device Role / Timing Role: DC-coupled non-inverting amplifier with 800 µV max offset and <2 µV/°C drift to preserve baseline stability across body temperature variations. Use Value: Reduces post-processing calibration overhead by >70% compared to higher-offset op-amps in wearable patch designs. |
| Industrial Proximity Sensor | Low-Power Active Filter |
Use Scenario: Conditioning analog output from inductive proximity switch with 0–10 V range and high source impedance. IC Role / Device Role / Timing Role: Rail-to-rail input buffer driving 10 kΩ PLC input; rejects common-mode noise from 24 V DC field wiring. Use Value: Eliminates need for external rail-splitter or level-shifter, reducing BOM cost by $0.18/unit in volume production. | Use Scenario: Implementing 2nd-order Sallen-Key low-pass filter (10 Hz cutoff) for vibration sensor output prior to MCU sampling. IC Role / Device Role / Timing Role: Unity-gain stable amplifier with 120 kHz GBW providing precise pole placement and minimal phase distortion. Use Value: Achieves –40 dB attenuation at 100 Hz while consuming only 10 µA - extending battery life in predictive maintenance nodes by 3×. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-I/OT | Higher supply current (100 µA), lower GBW (1 MHz), no guaranteed rail-to-rail input at 1.5 V. | Better for higher-speed signal chains but unsuitable for sub-2 V battery operation or pA-level sensor interfaces. | Select when >100 kHz bandwidth is required and power budget allows 10× higher quiescent current. |
| LMV321IDBVR | Higher input offset (3.5 mV max), 2× higher supply current (15 µA), limited rail-to-rail output swing at 1.8 V. | Adequate for general-purpose portable audio but lacks precision for medical-grade DC measurements. | Choose only if legacy design reuse or second-source qualification mandates TI packaging compatibility. |
Compared with MCP6001T-I/OT and LMV321IDBVR, the TSV611ILT uniquely combines 1 pA input bias, 10 µA supply current, and full rail-to-rail operation down to 1.5 V - making it the only viable option for long-life, high-impedance, low-voltage sensor interfaces requiring <1 mV offset stability.
Availability
TSV611ILT is available at Aetrix Electronics and suitable for battery-powered smoke detectors, portable ECG monitors, industrial proximity sensors, and low-power active filtering requiring stable component supply across automotive, medical, and industrial temperature ranges.
Supply support for TSV611ILT 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, analog ICs, MEMS, and power solutions for industrial, automotive, and consumer markets.
The TSV61x family belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, rail-to-rail signal conditioning in energy-constrained sensor nodes and portable medical devices.
FAQ
What is the maximum capacitive load the TSV611ILT can drive without external compensation?
The TSV611ILT is stable with up to 100 pF capacitive load directly at its output in unity-gain configuration, as verified by phase margin measurements ≥60° across temperature and supply voltage. Driving larger loads requires an output series resistor (e.g., 10–100 Ω) selected per Figure 19 in the datasheet, followed by bench validation.
Does the TSV611ILT support true rail-to-rail input at 1.5 V supply?
Yes - the TSV611ILT guarantees rail-to-rail input common-mode range from (VCC–) – 0.1 V to (VCC+) + 0.1 V at all supply voltages from 1.5 V to 5.5 V, confirmed by characterization data in Tables 3–5 and Figures 17–18 of the official datasheet.
How does the input offset voltage of TSV611ILT compare to the TSV611A variant?
The standard TSV611ILT has a maximum input offset voltage of 4 mV, while the TSV611AILT (A version) is specified at 800 µV max - a 5× improvement achieved via laser trimming. Both share identical pinout, package, and electrical behavior except for offset and drift specifications.
Can the TSV611ILT operate from a single 1.5 V alkaline cell throughout its discharge curve?
Yes - the TSV611ILT functions continuously from 1.5 V down to 1.5 V (minimum specified), with key parameters like GBP (100 kHz min), supply current (≤12.5 µA), and output swing (within 50 mV of rails) fully characterized at 1.5 V in Table 3, enabling direct integration into AA/AAA-powered devices without voltage boosting.
TSV611ILT 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:
- 0.04V/µs
- Gain Bandwidth Product:
- 120 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 4 mV
- 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
TSV611ILT FAQ
1.How can I place an order for TSV611ILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV611ILT 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 TSV611ILT reliable?
The price and inventory of TSV611ILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV611ILT is usually 5 days.
3.What payment methods are accepted for TSV611ILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV611ILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV611ILT?
TSV611ILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV611ILT 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 TSV611ILT?
For technical support, including TSV611ILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV611ILT requirements.
6.How does Aetrix verify that TSV611ILT is sourced from the original manufacturer or authorized distributors?
All TSV611ILT 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 TSV611ILT meets industry standards.
7.What is the process for return or replacement of TSV611ILT?
All TSV611ILT units undergo pre-shipment inspection (PSI). If there is an issue with TSV611ILT, 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 TSV611ILT part is unused and in its original packaging.
Return procedure for TSV611ILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV611ILT Tags
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LM358DT
STMicroelectronics
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