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STMicroelectronics TSV631ICT
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- Part No.:
- TSV631ICT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TSV631ICT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,932
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Product details
Overview
TSV631ICT 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 63 mA output drive at 5 V - enabling high-accuracy sensor front-ends and portable medical instrumentation.
For engineers reviewing the TSV631ICT datasheet, TSV631ICT pinout, TSV631ICT application, or TSV631ICT equivalent, this op-amp is selected for low-voltage precision amplification where rail-to-rail swing, thermal stability across –40 °C to 125 °C, shutdown current < 50 nA, and unity-gain stability with 100 pF capacitive loads are critical design requirements.
Technical Context
The TSV631ICT 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 trimming ensures ±17% dispersion on supply current, directly stabilizing GBP (min 730 kHz), slew rate (min 0.25 V/µs), and large-signal gain (min 89 dB).
It operates down to 1.5 V supply while maintaining full AC/DC specifications, supports unity-gain stable operation into 100 pF, and features a high-output-current architecture delivering ±63 mA at 5 V - exceeding typical micropower op-amps by >2× in drive capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - enables direct integration into single-cell Li-ion, 2xAA, or 3.3 V/5 V systems without level-shifting. |
| Quiescent Current | 60 µA typ at 5 V - extends battery life in always-on sensor nodes; drops to 5 nA in shutdown mode. |
| Gain Bandwidth Product | 880 kHz typ - supports anti-aliasing filtering up to ~100 kHz and fast-settling DC-coupled signal paths. |
| Input Bias Current | 1 pA typ - minimizes voltage error in high-impedance pH, thermopile, or photodiode interfaces. |
| Output Drive | ±63 mA at VCC = 5 V - drives 75 Ω transmission lines or multiple ADC inputs without external buffers. |
| 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 ADCs. |
| Offset Voltage (A-grade) | 500 µV max - enables <12-bit precision in 3.3 V systems without calibration. |
Pinout & Package
TSV631ICT is supplied in SC70-6 (SOT323-6) package: 1.3 mm × 0.8 mm × 0.5 mm, 6-pin surface-mount, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node; accepts signals up to VCC+ + 0.1 V and down to VCC– − 0.1 V. |
| 2 | Non-inverting Input (+) | Differential input node; same rail-to-rail common-mode range as Pin 1. |
| 3 | VCC– (Ground) | Reference return for all internal circuitry; must be low-impedance path to system ground. |
| 4 | Output | Class-AB output stage capable of sourcing/sinking 63 mA; rail-to-rail swing under 10 kΩ load. |
| 5 | VCC+ (Supply) | Positive supply rail; decoupling capacitor (10 nF) required adjacent to this pin per layout guidelines. |
| 6 | NC | No connect - internally unconnected; left floating per datasheet; not to be tied to any potential. |
Key Features
| Feature | Design Value |
|---|---|
| Low-offset, low-drift precision | 500 µV max offset (A-grade), 2 µV/°C drift - maintains accuracy over automotive and industrial temperature ranges. |
| Ultra-low power shutdown | 5 nA typ shutdown current - reduces system standby power to nanoampere levels for long-term battery operation. |
| High output current density | 63 mA output at 5 V in 1.3 mm × 0.8 mm SC70-6 - eliminates need for external driver stages in compact designs. |
| Unity-gain stable with capacitive loads | Stable with up to 100 pF directly on output - simplifies filter design and eliminates need for isolation resistors in many applications. |
| Extended temperature qualification | Guaranteed operation from –40 °C to +125 °C - qualified for automotive and harsh-environment industrial use. |
Applications
| Wearable ECG Front-End | IoT Gas Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered chest straps. IC Role / Device Role / Timing Role: Primary gain stage with rail-to-rail input to capture full electrode offset range and rail-to-rail output to maximize ADC utilization. Use Value: 1 pA input bias prevents electrode polarization errors; 60 µA quiescent current enables >1-week runtime on coin cell. |
Use Scenario: Conditioning output of electrochemical gas sensors (e.g., CO, NO2) with high source impedance (>100 kΩ) and low output current (<100 nA). IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and low offset to resolve sub-ppm gas concentrations. Use Value: 500 µV max offset and 2 µV/°C drift ensure stable baseline over temperature; rail-to-rail output matches 12-bit SAR ADC input range. |
| Portable Blood Glucose Meter | Smart Home Occupancy Sensor |
|
Use Scenario: Amplifying amperometric current from glucose oxidase enzyme reaction on test strip electrodes. IC Role / Device Role / Timing Role: Precision current-to-voltage converter operating from single 3.0 V alkaline cell with shutdown between measurements. Use Value: 5 nA shutdown current preserves battery during 30-second idle intervals; 880 kHz GBP supports fast strip insertion detection. |
Use Scenario: Signal conditioning for passive infrared (PIR) motion detectors in battery-operated smart lighting controls. IC Role / Device Role / Timing Role: Low-noise, low-power amplifier for pyroelectric sensor output prior to window comparator detection. Use Value: 60 µA supply current enables multi-year operation on AA batteries; rail-to-rail output ensures clean logic-level transitions to MCU GPIO. |
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 |
|---|---|---|---|
| TSV621ICT | 420 kHz GBP, 29 µA IQ, no shutdown - lower speed, lower power, no enable control. | Suitable for slower sensor interfaces (e.g., RTD, thermistor) where 880 kHz is unnecessary. | Select when power budget is tighter than bandwidth requirement and shutdown is not needed. |
| MCP6001T-I/OT | 1 MHz GBP, 100 µA IQ, rail-to-rail I/O, no shutdown - higher power, higher speed, different pinout (SOT-23-5). | Better for higher-frequency active filters but increases battery drain by 67% vs. TSV631ICT. | Choose only if 1 MHz bandwidth is mandatory and PCB layout allows SOT-23-5 footprint change. |
Compared with TSV631ICT, TSV621ICT trades 52% bandwidth for 52% lower quiescent current and no shutdown function, while MCP6001T-I/OT offers 14% more bandwidth at 67% higher supply current and incompatible pinout - making TSV631ICT optimal for precision, low-power, space-constrained designs requiring enable control.
Availability
TSV631ICT is available at Aetrix Electronics and suitable for wearable medical devices, IoT environmental sensors, and portable diagnostic equipment requiring stable component supply across automotive and industrial temperature grades.
Supply support for TSV631ICT 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TSV63x series belongs to ST's precision micropower op-amp product line, engineered specifically for battery-constrained, high-accuracy signal acquisition in portable and automotive applications.
FAQ
What is the maximum capacitive load the TSV631ICT can drive without external compensation?
The TSV631ICT is unity-gain stable with capacitive loads up to 100 pF when configured as a voltage follower. Driving larger capacitive loads requires an in-series resistor (RISO) at the output - values from 10 Ω to 100 Ω are recommended depending on load size, per Figure 23 in the datasheet. Stability must be verified experimentally and in simulation.
Does the TSV631ICT have a shutdown pin, and how is it controlled?
No - the TSV631ICT does not include a shutdown pin. Only the TSV630 variant features SHDN functionality. The TSV631ICT is a single-channel, non-shutdown version optimized for simplicity and minimal footprint. For shutdown capability, TSV630ICT (SC70-6) or TSV630AICT (same package, tighter offset) must be used instead.
Can the TSV631ICT operate from a 1.5 V supply while maintaining full AC performance?
Yes - the TSV631ICT is fully specified from 1.5 V to 5.5 V. At 1.5 V, it delivers 700 kHz gain bandwidth (min), 0.2 V/µs slew rate (min), and maintains rail-to-rail input/output swing. All DC parameters including offset, bias current, and CMRR remain guaranteed across the full temperature range at 1.5 V.
Is the NC pin (Pin 6) in the SC70-6 package required to be grounded or left floating?
Pin 6 is a true no-connect terminal - it is internally unconnected and must be left floating per STMicroelectronics' datasheet guidance. Connecting it to ground, supply, or any other node may cause unpredictable behavior or violate absolute maximum ratings. PCB layout should avoid solder mask or copper under this pad.
TSV631ICT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- SC-70-5
TSV631ICT FAQ
1.How can I place an order for TSV631ICT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV631ICT 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 TSV631ICT reliable?
The price and inventory of TSV631ICT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV631ICT is usually 5 days.
3.What payment methods are accepted for TSV631ICT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV631ICT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV631ICT?
TSV631ICT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV631ICT 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 TSV631ICT?
For technical support, including TSV631ICT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV631ICT requirements.
6.How does Aetrix verify that TSV631ICT is sourced from the original manufacturer or authorized distributors?
All TSV631ICT 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 TSV631ICT meets industry standards.
7.What is the process for return or replacement of TSV631ICT?
All TSV631ICT units undergo pre-shipment inspection (PSI). If there is an issue with TSV631ICT, 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 TSV631ICT part is unused and in its original packaging.
Return procedure for TSV631ICT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV631ICT Tags
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LM358DT
STMicroelectronics
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MCP6006T-E/OT
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MCP6006UT-E/OT
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