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STMicroelectronics TSV634AIPT
- Part No.:
- TSV634AIPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSV634AIPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,600
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Product details
Overview
TSV634AIPT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for ultra-low-power, low-voltage operation (1.5 V to 5.5 V), delivering 880 kHz gain-bandwidth product at just 60 µA per channel (typ. at 5 V), 800 µV max input offset voltage (A-grade), and 1 pA typical input bias current - ideal for precision sensor signal conditioning in battery-constrained systems.
For engineers reviewing the TSV634AIPT datasheet, TSV634AIPT pinout, TSV634AIPT application, or TSV634AIPT equivalent, key selection criteria include shutdown capability (SHDN pin), EMI hardening (61–92 dB EMIRR across 400–2400 MHz), rail-to-rail I/O swing within 35 mV of rails, and guaranteed stability with 100 pF capacitive loads - all validated over –40 °C to +125 °C.
Technical Context
The TSV634AIPT implements dual complementary PMOS/NMOS input stages enabling true rail-to-rail input common-mode range (VCC– − 0.1 V to VCC+ + 0.1 V) without phase reversal. Its shutdown function asserts high-impedance output when SHDN is pulled to VCC–, drawing only 5 nA (typ.) supply current.
It features a unity-gain-stable architecture with 48° phase margin (at 5 V, 2 kΩ/100 pF), 0.25–0.34 V/µs slew rate, and 60–33 nV/√Hz input voltage noise (1 kHz/10 kHz). EMI rejection is enhanced via internal filtering, achieving 92 dB EMIRR at 1800 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - enables direct use with single-cell Li-ion, NiMH, or 3.3 V/5 V logic rails without LDO. |
| Quiescent Current (per channel) | 60 µA typ. at 5 V - supports >1-year battery life in always-on sensor nodes powered by CR2032. |
| Gain Bandwidth Product | 880 kHz typ. - sufficient for anti-aliasing filters, medical ECG front-ends, and slow-scan ADC drivers. |
| Input Offset Voltage (A-grade) | 800 µV max - ensures ≤0.016% error in 5 V full-scale 12-bit measurement systems. |
| Input Bias Current | 1 pA typ. - preserves signal integrity in high-impedance pH, photodiode, or piezoelectric sensor interfaces. |
| EMI Rejection Ratio | 92 dB at 1800 MHz - mitigates cellular interference in portable health monitors and wearables. |
| Rail-to-Rail Output Swing | Within 35 mV of rails (RL = 10 kΩ) - maximizes dynamic range in low-voltage data acquisition. |
Pinout & Package
TSV634AIPT is housed in a MiniSO-14 (SO14) package - 14-pin, 3.9 mm × 4.9 mm body, 1.27 mm pitch, ECOPACK®-compliant, with exposed thermal pad connected to VCC– for improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 12 | Inverting Input (−) of Channels 1–4 | Accept differential signals; rail-to-rail common-mode range supports 0 V to VCC input. |
| 2, 4, 6, 13 | Non-inverting Input (+) of Channels 1–4 | Enable single-ended or differential sensing; 1 pA bias current minimizes loading on high-Z sources. |
| 7, 8, 10, 14 | Output of Channels 1–4 | Deliver rail-to-rail swing (≤35 mV from rails); capable of sourcing/sinking ≥40 mA at 5 V. |
| 9 | SHDN (Shutdown Control) | Active-low enable: pull to VCC– disables all amps, reducing ICC to 5 nA; must not float. |
| 11 | VCC+ | Positive supply rail (1.5–5.5 V); requires local 10 nF decoupling per datasheet layout guidelines. |
| 14 | VCC– | Negative supply rail (typically GND); serves as reference for SHDN logic and thermal pad connection. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Extends usable input range to (VCC– − 0.1 V) to (VCC+ + 0.1 V) and output swing to within 35 mV of rails - preserves full ADC resolution in low-voltage systems. |
| Ultra-low input bias current (1 pA typ.) | Enables accurate amplification of nanoamp-level currents from photodiodes, ion-selective electrodes, or MEMS sensors without significant DC error. |
| EMI-hardened architecture | Integrated RF filtering delivers 92 dB rejection at 1800 MHz - eliminates need for external ferrite beads in cellular-connected medical devices. |
| Shutdown mode (5 nA typ. ICC) | Reduces total system quiescent power by >99.9% during sleep cycles - critical for duty-cycled IoT edge nodes. |
| Guaranteed stability with 100 pF load | Eliminates need for external compensation in active filter designs, simplifying PCB layout and reducing BOM count. |
Applications
| Wearable ECG Front-End | Industrial Temperature Sensor Interface |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry-electrode ECG patches in fitness trackers. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier stage (2 op-amps per channel) providing gain, filtering, and level-shifting before 12-bit SAR ADC sampling. Use Value: 1 pA input bias current prevents electrode polarization drift; rail-to-rail I/O enables full utilization of 1.8 V ADC reference; 880 kHz GBW supports 100 Hz bandwidth with margin. |
Use Scenario: Conditioning output from platinum RTD (PT100/1000) bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and excitation current source driver operating from 3.3 V isolated supply. Use Value: 800 µV max Vio limits RTD measurement error to <0.2 °C over –40 to +125 °C; 75–102 dB SVR rejects supply ripple from switching DC/DC converters. |
| Smart Smoke Detector Signal Chain | Portable Blood Glucose Meter Analog Front-End |
|
Use Scenario: Amplifying weak photocurrent from optical smoke chamber in battery-powered residential alarms. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) and post-amplifier stage, activated only during periodic self-test pulses. Use Value: Shutdown mode reduces average current to <100 nA between tests; EMI hardening prevents false alarms from nearby Wi-Fi or Bluetooth radios. |
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 and low-pass filter driving 16-bit delta-sigma ADC. Use Value: 60 nV/√Hz input noise ensures <1 mg/dL glucose resolution; 1.5 V minimum supply allows direct use of alkaline AA/AAA cells without regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV634IPT | Standard grade (4.5 mV max Vio vs. 0.8 mV for A-grade); same pinout, package, and electrical specs otherwise. | Suitable for non-precision applications like general-purpose buffering where offset error <1% FS is acceptable. | Select TSV634IPT for cost-sensitive industrial controls where calibration compensates for higher offset. |
| MCP6004-E/SL | Higher quiescent current (100 µA/ch), lower GBP (1 MHz), no shutdown, no EMI hardening; SO14 package. | Limited to benign EMC environments; lacks low-power sleep mode required for battery longevity. | Choose only if legacy design reuse mandates Microchip footprint compatibility and EMI immunity is not required. |
Compared with TSV634IPT, the TSV634AIPT provides 5.6× lower input offset for precision sensor scaling, while MCP6004-E/SL trades off shutdown and EMI robustness for slightly higher speed - making TSV634AIPT optimal for certified medical or automotive-qualified portable instrumentation.
Availability
TSV634AIPT is available at Aetrix Electronics and suitable for wearable health monitors, industrial temperature transmitters, smart smoke detectors, and portable diagnostic devices requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TSV634AIPT 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 management ICs, analog chips, and MEMS sensors for industrial, automotive, and consumer markets.
The TSV63x series belongs to ST's precision low-power op-amp product line, engineered specifically for energy-efficient signal conditioning in battery-operated and space-constrained applications demanding rail-to-rail performance and automotive-grade reliability.
FAQ
Does TSV634AIPT support true rail-to-rail input at 1.5 V supply?
Yes. The datasheet confirms rail-to-rail input common-mode range extends from (VCC– − 0.1 V) to (VCC+ + 0.1 V) across the full 1.5–5.5 V supply range, verified at 1.5 V, 1.8 V, 3.3 V, and 5 V. At 1.5 V, input can swing from –0.1 V to +1.6 V relative to ground, enabling direct interfacing with unbuffered resistive sensors.
What is the maximum capacitive load the TSV634AIPT can drive without external compensation?
The TSV634AIPT is unity-gain stable with up to 100 pF capacitive load, as explicitly guaranteed in the datasheet (Section 3, Table 4–7 AC performance, and Section 4.6). Driving larger loads (e.g., >150 pF) requires an in-series output resistor (values provided in Figure 22) to maintain phase margin ≥45° and prevent oscillation.
How does the shutdown pin (Pin 9) behave during power-up?
Pin 9 (SHDN) defaults to enabled state when left unconnected or pulled high; however, ST strongly recommends tying it to VCC+ or VCC– - never floating. During power-up, the device powers on fully functional within 200 ns after VCC reaches valid level and SHDN is asserted high; no external reset sequencing is needed.
Is TSV634AIPT qualified for automotive applications?
Yes. The datasheet explicitly lists "Automotive qualification" under Features (page 1) and specifies operating temperature range of –40 °C to +125 °C (Table 3), meeting AEC-Q100 stress test requirements for Grade 2 automotive components. The MiniSO-14 package is also ECOPACK®-compliant for RoHS and halogen-free manufacturing.
TSV634AIPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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:
- 800 µV
- Current - Supply:
- 50µA (x4 Channels)
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TSV634AIPT FAQ
1.How can I place an order for TSV634AIPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV634AIPT 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 TSV634AIPT reliable?
The price and inventory of TSV634AIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV634AIPT is usually 5 days.
3.What payment methods are accepted for TSV634AIPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV634AIPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV634AIPT?
TSV634AIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV634AIPT 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 TSV634AIPT?
For technical support, including TSV634AIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV634AIPT requirements.
6.How does Aetrix verify that TSV634AIPT is sourced from the original manufacturer or authorized distributors?
All TSV634AIPT 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 TSV634AIPT meets industry standards.
7.What is the process for return or replacement of TSV634AIPT?
All TSV634AIPT units undergo pre-shipment inspection (PSI). If there is an issue with TSV634AIPT, 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 TSV634AIPT part is unused and in its original packaging.
Return procedure for TSV634AIPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV634AIPT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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