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STMicroelectronics TSV631ILT
- Part No.:
- TSV631ILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV631ILT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,452
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Product details
Overview
TSV631ILT from STMicroelectronics is a rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, precision signal conditioning in 1.5 V–5.5 V battery-powered systems. It delivers 880 kHz gain bandwidth at 60 µA quiescent current, 1 pA input bias current, 500 µV max offset voltage (A-grade), and operates across –40 °C to 125 °C - enabling high-accuracy sensor front-ends and medical instrumentation.
For engineers reviewing the TSV631ILT datasheet, TSV631ILT pinout, TSV631ILT application, or TSV631ILT equivalent, this op-amp is selected for low-voltage analog signal chains where rail-to-rail swing, micropower operation, and automotive-grade temperature stability are critical - especially in portable ECG monitors, gas sensors, and smart battery fuel gauges.
Technical Context
The TSV631ILT uses complementary PMOS/NMOS input pairs to achieve true rail-to-rail input common-mode range (VCC– – 0.1 V to VCC+ + 0.1 V) and rail-to-rail output swing within 35 mV of both rails under 10 kΩ load. Its unity-gain stable architecture supports capacitive loads up to 100 pF without oscillation.
It features internally trimmed DC/AC parameter dispersion: supply current variation is ±17 % around 60 µA typ, and minimum guaranteed specs include 730 kHz GBP and 0.25 V/µs slew rate - ensuring consistent performance across production lots and temperature extremes.
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, alkaline, or coin-cell batteries without regulation. |
| Quiescent Current | 60 µA typ at 5 V - extends battery life in always-on sensing nodes (e.g., >10-year runtime on CR2032 in low-duty-cycle applications). |
| Gain Bandwidth Product | 880 kHz typ - supports anti-aliasing filtering and sensor signal amplification up to ~100 kHz with <1° phase error. |
| Input Bias Current | 1 pA typ - minimizes voltage error in high-impedance pH, photodiode, or thermopile sensor interfaces. |
| Offset Voltage (A-grade) | 500 µV max - ensures ≤0.1% gain error in 5 V full-scale 12-bit ADC front-ends without trimming. |
| Rail-to-Rail I/O | Input CMR: VCC– – 0.1 V to VCC+ + 0.1 V; Output swing: within 35 mV of rails - maximizes dynamic range in low-voltage systems. |
| Operating Temperature | –40 °C to 125 °C - qualified for automotive cabin and industrial motor-control ambient environments. |
Pinout & Package
TSV631ILT is supplied in the SOT23-5 package (5-pin, 2.9 mm × 1.6 mm × 1.1 mm), a space-constrained surface-mount outline compatible with standard pick-and-place assembly. The exposed pad is not present - thermal dissipation relies on PCB copper area connected to VCC–.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | High-impedance node (1 pA bias) accepting signals from resistive or capacitive sensors without loading. |
| 2 (IN–) | Inverting input | Differential input node; used with feedback network to set closed-loop gain and filter response. |
| 3 (VCC–) | Negative supply | Ground reference for single-supply operation; must be decoupled with ≥10 nF capacitor near pin. |
| 4 (OUT) | Amplifier output | Capable of sourcing/sinking 63 mA at 5 V; drives 10 kΩ loads to within 35 mV of rails. |
| 5 (VCC+) | Positive supply | Accepts 1.5–5.5 V; internal bandgap reference and bias circuitry scale linearly with supply voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Low power shutdown mode | 5 nA typ ICC in shutdown - reduces system standby current by >99.99% versus active mode. |
| Unity-gain stability | Stable with 100 pF capacitive load - eliminates need for external isolation resistor in buffer configurations. |
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for use in automotive body electronics and infotainment subsystems. |
| Extended common-mode range | VIN extends 0.1 V beyond rails - enables accurate measurement of signals near ground or supply in single-supply topologies. |
| Tight parameter dispersion | ±17% ICC spread and guaranteed min GBP (730 kHz) - simplifies design margining and eliminates lot-to-lot calibration. |
Applications
| Portable ECG Monitor Front-End | Smart Battery Fuel Gauge |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes while rejecting motion artifacts and 50/60 Hz interference. IC Role / Device Role / Timing Role: Precision, low-noise, rail-to-rail op-amp in 3-op-amp instrumentation amplifier configuration with 1.8 V supply. Use Value: 1 pA input bias prevents electrode polarization drift; 500 µV max Vos ensures baseline stability over temperature without digital correction. |
Use Scenario: Measuring cell voltage and coulomb-counting current in lithium-ion battery packs for handheld tools and wearables. IC Role / Device Role / Timing Role: Low-drift current-sense amplifier and voltage buffer feeding 12-bit SAR ADC in energy-harvesting BMS. Use Value: 60 µA ICC enables continuous monitoring during sleep mode; rail-to-rail output preserves full ADC input range at 2.0–4.2 V cell voltages. |
| Industrial Gas Sensor Signal Chain | Automotive Cabin Air Quality Module |
|
Use Scenario: Conditioning output from electrochemical CO/NOx sensors with high source impedance (>100 kΩ) and sub-mV sensitivity. IC Role / Device Role / Timing Role: Transimpedance amplifier and low-pass filter stage operating from 3.3 V LDO with minimal self-heating. Use Value: 1 pA Iib avoids signal attenuation; 880 kHz GBP supports 10 Hz cutoff filtering without phase lag degradation. |
Use Scenario: Amplifying NDIR detector output and conditioning humidity/temperature sensor signals in HVAC control units. IC Role / Device Role / Timing Role: Rail-to-rail signal conditioner for multi-sensor fusion, operating across –40 °C to 85 °C ambient. Use Value: AEC-Q100 qualification and –40 °C to 125 °C rating ensure reliability in unregulated under-dash environments; 35 mV output headroom maintains SNR at cold start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV621ILT | 420 kHz GBP, 29 µA ICC - lower speed, lower power | Better suited for sub-50 kHz sensor buffering where battery life > bandwidth | Select when 880 kHz is unnecessary and 29 µA ICC improves runtime by >30% vs. TSV631ILT |
| TSV611ILT | 120 kHz GBP, 9 µA ICC - lowest power, lowest speed | Ideal for ultra-low-duty-cycle wake-up circuits (e.g., smoke detector smoke chamber bias) | Choose only for static DC amplification where response time >10 ms is acceptable |
Compared with TSV621ILT and TSV611ILT, the TSV631ILT provides the highest speed/power ratio in ST's micropower op-amp family - delivering 3× the bandwidth of TSV621ILT at only +107% current, making it optimal for real-time analog signal processing in constrained-energy systems.
Availability
TSV631ILT is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin sensors, and industrial gas analyzers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV631ILT 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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The TSV631ILT belongs to ST's TSV6xx rail-to-rail micropower op-amp product line, engineered specifically for precision, low-voltage signal conditioning in battery-constrained and automotive-qualified applications.
FAQ
Does TSV631ILT have a shutdown pin?
No. The TSV631ILT is the non-shutdown variant of the family. Only the TSV630 series includes a SHDN pin. TSV631ILT lacks shutdown functionality and draws 60 µA continuously when powered - this simplifies layout but requires system-level power gating if ultra-low standby current is needed.
What is the maximum capacitive load the TSV631ILT can drive without compensation?
The TSV631ILT is unity-gain stable and rated to drive up to 100 pF capacitive load directly without oscillation or phase reversal. For loads exceeding 100 pF, an in-series resistor (e.g., 10–100 Ω) between output and load is recommended to maintain stability, as verified in Figure 23 of the datasheet.
Is TSV631ILT pin-compatible with TSV630ILT?
No. TSV630ILT is offered in SOT23-6 (6-pin) to accommodate the SHDN pin, while TSV631ILT uses SOT23-5 (5-pin). Their pinouts differ: TSV630ILT adds SHDN at pin 6, shifting OUT to pin 5; TSV631ILT has no SHDN and retains OUT at pin 4. PCB redesign is required for substitution.
Can TSV631ILT operate from a 1.5 V supply with full rail-to-rail input capability?
Yes. The datasheet confirms rail-to-rail input operation down to 1.5 V supply, with input common-mode range extending from VCC– – 0.1 V to VCC+ + 0.1 V. At 1.5 V, this yields –0.1 V to +1.6 V input range - sufficient to capture signals across the full supply span in single-cell applications.
TSV631ILT 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:
- 0.34V/µs
- Gain Bandwidth Product:
- 880 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 60µA
- 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
TSV631ILT FAQ
1.How can I place an order for TSV631ILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV631ILT 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 TSV631ILT reliable?
The price and inventory of TSV631ILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV631ILT is usually 5 days.
3.What payment methods are accepted for TSV631ILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV631ILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV631ILT?
TSV631ILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV631ILT 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 TSV631ILT?
For technical support, including TSV631ILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV631ILT requirements.
6.How does Aetrix verify that TSV631ILT is sourced from the original manufacturer or authorized distributors?
All TSV631ILT 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 TSV631ILT meets industry standards.
7.What is the process for return or replacement of TSV631ILT?
All TSV631ILT units undergo pre-shipment inspection (PSI). If there is an issue with TSV631ILT, 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 TSV631ILT part is unused and in its original packaging.
Return procedure for TSV631ILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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