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STMicroelectronics TSV635IPT
- Part No.:
- TSV635IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSV635IPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,938
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Product details
Overview
TSV635IPT 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 60 µA supply current per channel, 1 pA typical input bias current, and 800 µV max input offset voltage (A-grade), widely used in battery-powered sensor signal conditioning circuits.
For engineers reviewing the TSV635IPT datasheet, TSV635IPT pinout, TSV635IPT application, or TSV635IPT equivalent, key selection considerations include shutdown functionality (SHDN pin), rail-to-rail I/O performance at 1.5 V, EMI rejection ratio up to 92 dB at 1.8 GHz, and MiniSO10 package compatibility with space-constrained portable medical and industrial sensing designs.
Technical Context
The TSV635IPT 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, with transition region centered near VCC+ – 0.7 V. Its output drives within 35 mV of both rails under 10 kΩ load.
It integrates a dedicated SHDN pin controlling all four amplifiers simultaneously, enabling 5 nA typ shutdown current and 200 ns turn-on time. The architecture guarantees unity-gain stability with 100 pF capacitive loads and features EMI-hardened design validated at 400–2400 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - supports single-cell Li-ion, alkaline, and coin-cell battery systems without level-shifting. |
| Quiescent Current (per channel) | 60 µA typ at 5 V - enables >1-year operation in always-on sensor nodes powered by CR2032 batteries. |
| Gain Bandwidth Product | 880 kHz typ - sufficient for anti-aliasing filters, pulse oximeter front-ends, and thermistor signal amplification. |
| Input Offset Voltage (max) | 800 µV (A-grade) - ensures ≤0.016% error in 5 V full-scale medical analog front-ends. |
| Input Bias Current | 1 pA typ - preserves signal integrity in high-impedance pH electrode and piezoelectric sensor interfaces. |
| EMI Rejection Ratio | 92 dB at 1.8 GHz - suppresses cellular band interference in wearable health monitors. |
| Shutdown Current | 5 nA typ - reduces system standby power to nanoampere levels during sleep cycles. |
Pinout & Package
TSV635IPT is packaged in MiniSO10 (3.0 mm × 3.0 mm × 1.0 mm), a 10-pin surface-mount package with exposed thermal pad, rated for automotive temperature range (–40 °C to 125 °C) and RoHS-compliant ECOPACK®2 construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail output capable of sourcing/sinking 40 mA at 5 V - drives ADC reference buffers or LED bias networks. |
| 2 (IN+ A) | Amplifier A non-inverting input | High-impedance node (1 pA bias) - interfaces directly with thermocouples or photodiode transimpedance feedback paths. |
| 3 (IN– A) | Amplifier A inverting input | Accepts feedback network for precision gain setting; rail-to-rail common-mode range enables single-supply sensor biasing. |
| 4 (V–) | Negative supply rail | Ground reference for single-supply operation; must be decoupled with 10 nF capacitor placed <1 mm from pin. |
| 5 (SHDN) | Global shutdown control | Active-low logic input; requires hard tie to V– or V+ - floating state causes undefined amplifier behavior and increased current draw. |
| 6 (IN– B) | Amplifier B inverting input | Shared layout symmetry with Pin 3 - allows matched PCB routing for differential pair conditioning in ECG front-ends. |
| 7 (IN+ B) | Amplifier B non-inverting input | Complementary to Pin 2 - supports dual-channel sensor excitation (e.g., bridge-based pressure sensors). |
| 8 (OUT B) | Amplifier B output | Independent output stage - enables simultaneous signal processing for multi-parameter biosensors. |
| 9 (OUT C) | Amplifier C output | Third channel output - used for reference buffer generation or auxiliary signal path in portable diagnostic devices. |
| 10 (V+) | Positive supply rail | Accepts 1.5–5.5 V input; internal ESD protection rated to 4 kV HBM - eliminates need for external TVS in compact layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 1.5 V single-supply systems - no level-shifting circuitry required for 0–1.5 V sensor outputs. |
| EMI-hardened architecture | Validated 92 dB rejection at 1.8 GHz - prevents RF-induced baseline drift in Bluetooth-enabled glucose meters and pulse oximeters. |
| Guaranteed unity-gain stability | Stable with ≥100 pF capacitive loads - eliminates need for isolation resistors in ADC driver applications, reducing component count. |
| Automotive-qualified (AEC-Q100 Grade 1) | Rated for –40 °C to 125 °C ambient - qualified for engine bay sensor modules and ADAS proximity detection subsystems. |
| Low-offset drift | 2 µV/°C max - limits thermal-induced error to <0.25 mV over 100 °C range in industrial temperature transmitters. |
Applications
| Wearable Vital Sign Monitor | Portable Gas Detector |
|---|---|
|
Use Scenario: Continuous acquisition of photoplethysmography (PPG) and electrocardiogram (ECG) signals from dry electrodes on wrist-worn devices. IC Role / Device Role / Timing Role: Quad op-amp configures as transimpedance amplifier (CH1), instrumentation amplifier (CH2–CH3), and reference buffer (CH4) - all operating from single 3.0 V coin cell. Use Value: 60 µA/channel quiescent current extends battery life to 18 months; rail-to-rail I/O captures full PPG waveform swing without clipping at low VCC. |
Use Scenario: Signal conditioning for electrochemical gas sensors detecting CO, NO2, or O2 in handheld industrial safety instruments. IC Role / Device Role / Timing Role: Amplifies nanoamp-level sensor current (via TIA), rejects common-mode noise from pump drivers, and buffers reference voltage for ADC. Use Value: 1 pA input bias current prevents sensor polarization errors; 800 µV max Vos ensures ±5 ppm gas concentration accuracy over temperature. |
| Smart Home Thermostat Sensor Hub | Industrial RTD Transmitter |
|
Use Scenario: Multi-sensor fusion node aggregating temperature (NTC), humidity (capacitive), and occupancy (PIR) data for HVAC control. IC Role / Device Role / Timing Role: Configured as precision voltage follower (NTC divider), active low-pass filter (PIR envelope), and comparator hysteresis generator (humidity threshold). Use Value: Shutdown mode reduces idle power to 5 nA - critical for energy-harvesting variants using solar cells or thermal gradients. |
Use Scenario: 4–20 mA loop-powered transmitter converting Pt100 RTD resistance to current output in factory automation systems. IC Role / Device Role / Timing Role: Forms 3-op-amp constant-current source, linearization circuit, and loop-driver output stage - all operating from 12–36 V loop supply. Use Value: 125 °C max operating temperature supports DIN rail mount enclosures; EMI hardening prevents false trips near VFDs and motor starters. |
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 |
|---|---|---|---|
| TSV635IST | Same die, identical electrical specs, but in SO8 package (not MiniSO10) - larger footprint, higher RthJA (125 °C/W vs. 113 °C/W). | Lacks SHDN pin - unsuitable for duty-cycled sensor nodes requiring nanoamp standby. | Select only when board space permits SO8 and shutdown is unnecessary. |
| MCP6004-E/ST | Higher quiescent current (100 µA/channel), lower GBP (1 MHz), no EMI hardening, non-automotive grade. | Not qualified for automotive or medical use; lacks 125 °C rating and 92 dB EMI rejection. | Acceptable for cost-sensitive consumer IoT hubs where RF immunity and extended temperature are not required. |
Compared with TSV635IPT, TSV635IST sacrifices shutdown capability and thermal performance for legacy SO8 compatibility, while MCP6004-E/ST trades EMI robustness and automotive qualification for lower unit cost in benign environments.
Availability
TSV635IPT is available at Aetrix Electronics and suitable for battery-powered medical wearables, portable gas detectors, smart home sensor hubs, and industrial RTD transmitters requiring stable component supply across automotive and industrial temperature ranges.
Supply support for TSV635IPT 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, sensors, and analog components for automotive, industrial, and consumer markets.
The TSV63x series belongs to ST's precision low-power op-amp product line, engineered specifically for energy-constrained, RF-noisy, and wide-temperature applications including portable diagnostics, environmental monitoring, and automotive cabin sensing.
FAQ
What is the maximum capacitive load the TSV635IPT can drive without external compensation?
The TSV635IPT is unity-gain stable with up to 100 pF capacitive load at its output, as verified in the datasheet's AC performance section. Driving larger loads (e.g., >150 pF) requires adding a series resistor (typically 10–100 Ω) between the output and load to maintain phase margin above 45°, confirmed via bench testing and SPICE simulation using ST's provided macromodel.
Does the SHDN pin require a pull-up resistor, and what happens if left unconnected?
Yes - the SHDN pin must be actively driven to V+ (enable) or V– (disable); it must never float. An unconnected SHDN pin causes unpredictable amplifier state, elevated supply current (>100 µA), and potential output oscillation. A 100 kΩ pull-up to V+ is recommended for default-enable configurations in battery-powered systems.
Can the TSV635IPT operate reliably at 1.5 V supply with full rail-to-rail input common-mode range?
Yes - the datasheet guarantees rail-to-rail input operation from (VCC– – 0.1 V) to (VCC+ + 0.1 V) down to 1.5 V supply, with measured common-mode rejection >53 dB and input offset voltage drift of only 2 µV/°C. This enables direct interfacing with 0–1.5 V output sensors like MEMS microphones and low-voltage Hall-effect switches.
How does the TSV635IPT's EMI hardening perform at 2.4 GHz, and is external filtering still needed?
At 2.4 GHz, the TSV635IPT achieves 83 dB EMI rejection ratio (EMIRR), as measured per IEC 62132-4 with 100 mVrms RF injection - sufficient to prevent baseline shift in Bluetooth LE–enabled devices. While external filtering is not mandatory, a 10 nF ceramic decoupling cap placed <1 mm from V+ and V– pins remains essential to suppress conducted noise coupling.
TSV635IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-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:
- 3 mV
- 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:
- 16-TSSOP
TSV635IPT FAQ
1.How can I place an order for TSV635IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV635IPT 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 TSV635IPT reliable?
The price and inventory of TSV635IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV635IPT is usually 5 days.
3.What payment methods are accepted for TSV635IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV635IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV635IPT?
TSV635IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV635IPT 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 TSV635IPT?
For technical support, including TSV635IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV635IPT requirements.
6.How does Aetrix verify that TSV635IPT is sourced from the original manufacturer or authorized distributors?
All TSV635IPT 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 TSV635IPT meets industry standards.
7.What is the process for return or replacement of TSV635IPT?
All TSV635IPT units undergo pre-shipment inspection (PSI). If there is an issue with TSV635IPT, 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 TSV635IPT part is unused and in its original packaging.
Return procedure for TSV635IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV635IPT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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