STMicroelectronics TSV911ID
- Part No.:
- TSV911ID
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSV911ID.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:2,929
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Product details
Overview
TSV911ID from STMicroelectronics is a single-channel rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It delivers 8 MHz gain-bandwidth, 4.5 V/µs slew rate, 1.1 mA max supply current at 5 V, 1.5 mV max input offset voltage (A grade), and operates from 2.5 V to 5.5 V - enabling precision signal conditioning in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the TSV911ID datasheet, TSV911ID pinout, TSV911ID application, or TSV911ID equivalent, key selection criteria include its rail-to-rail I/O swing at 2.5 V supply, ultra-low 1 pA typical input bias current, unity-gain stability with capacitive loads up to 100 pF, and AEC-Q100-qualified variants for automotive sensor front-ends.
Technical Context
The TSV911ID implements a CMOS input stage with complementary differential pairs to achieve rail-to-rail input common-mode range (VCC− − 0.1 V to VCC+ + 0.1 V) and Class AB output stage enabling ±35 mA output drive. Its 8 MHz GBP is maintained across 2.5–5.5 V supply while consuming only 820 µA typ., making it suitable for continuous-sensing nodes where quiescent power and bandwidth must coexist.
It features internal ESD protection ≥5 kV HBM and latch-up immunity of 200 mA, with thermal resistance RthJA = 125 °C/W in SO8 package. The device is unity-gain stable without external compensation and supports operation from −40 °C to +125 °C, meeting industrial and automotive ambient requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 8 MHz - enables stable closed-loop operation up to ~100 kHz with gain ≥10, critical for active filter stages in ECG front-ends. |
| Supply voltage range | 2.5 V to 5.5 V - supports direct interface with Li-ion (3.0–4.2 V) and 3.3 V logic rails without level-shifting. |
| Input bias current | 1 pA typ. - minimizes voltage error in high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance). |
| Input offset voltage (A grade) | 1.5 mV max - ensures ≤0.3% full-scale error in 12-bit ADC driver circuits with 5 V reference. |
| Slew rate | 4.5 V/µs - supports 10 kHz sine wave output at 20 Vpp without distortion in active anti-aliasing filters. |
| Output current drive | ±35 mA - drives 100 Ω loads directly, eliminating need for external buffer in DAC output stages. |
| Common-mode rejection | 82 dB min. at 5 V - suppresses supply ripple and ground noise in single-supply instrumentation amplifiers. |
Pinout & Package
TSV911ID is supplied in SO8 (Small Outline Integrated Circuit, 8-pin) package with standard dual-in-line footprint and gull-wing leads. Thermal resistance is 125 °C/W (junction-to-ambient), and the exposed pad is not internally connected.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (IN−) | Differential node for feedback network connection; referenced to VCC− in single-supply configurations. |
| 2 | Non-inverting input (IN+) | Sensor or signal source connection point; rail-to-rail common-mode range allows direct tie to ground or VCC−. |
| 3 | Output (OUT) | Class AB stage capable of sourcing/sinking ±35 mA; rail-to-rail swing supports full dynamic range utilization. |
| 4 | VCC− (ground) | Power return path; decoupling capacitor (10 nF) must be placed adjacent to this pin per layout guidelines. |
| 5 | NC | No internal connection; electrically isolated - may be left floating or tied to VCC− for mechanical stability. |
| 6 | NC | No internal connection; same as Pin 5 - no routing required. |
| 7 | VCC+ | Positive supply rail (2.5–5.5 V); requires local 10 nF ceramic decoupling to minimize PSRR degradation. |
| 8 | NC | No internal connection; unused pin - no electrical or thermal function. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full supply voltage utilization in single-supply systems (e.g., 3.3 V medical monitors), eliminating level-shifting circuitry. |
| Unity-gain stability with 100 pF load | Permits direct driving of ADC input capacitance or long PCB traces without external compensation components. |
| Ultra-low input bias current (1 pA typ.) | Reduces leakage-induced offset in high-Z sensor interfaces (e.g., piezoelectric accelerometers, ion-selective electrodes). |
| Low input offset voltage (1.5 mV max, A grade) | Minimizes DC error in precision gain stages, supporting <0.1% accuracy in 16-bit data acquisition paths. |
| ESD protection ≥5 kV HBM | Meets IEC 61000-4-2 Level 4 requirements for handheld medical devices exposed to user handling. |
Applications
| Portable ECG Monitor Front-End | Battery-Powered Gas Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable cardiac monitors. IC Role / Device Role / Timing Role: Primary instrumentation amplifier gain stage with rail-to-rail output driving 12-bit SAR ADC. Use Value: 1 pA input bias prevents electrode polarization drift; 8 MHz GBP supports >1 kHz bandwidth for arrhythmia detection. | Use Scenario: Conditioning output from electrochemical CO sensors operating on coin-cell batteries. IC Role / Device Role / Timing Role: Transimpedance amplifier converting nanoamp-level sensor current to voltage for low-power MCU ADC sampling. Use Value: 820 µA quiescent current extends 10-year battery life; rail-to-rail I/O accommodates varying sensor baseline voltages. |
| Automotive Cabin Air Quality Module | Handheld Medical Pulse Oximeter |
Use Scenario: Signal conditioning for NDIR CO₂ sensors in HVAC control units under wide temperature range. IC Role / Device Role / Timing Role: Precision buffer isolating sensor output from noisy 5 V automotive supply rails. Use Value: −40 °C to +125 °C operation and AEC-Q100 qualified variants ensure reliability; 82 dB CMRR rejects alternator ripple. | Use Scenario: Low-noise amplification of weak photodiode signals in fingertip SpO₂ measurement. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier with 21 nV/√Hz input noise at 10 kHz. Use Value: 21 nV/√Hz noise floor preserves signal integrity during motion artifacts; 4.5 V/µs slew rate handles pulse waveform edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911ILT | SOT23-5 package (5-pin), same electrical specs, lower thermal resistance (250 °C/W), no NC pins. | Better suited for space-constrained PCBs; lacks NC pins for simplified routing but higher RthJA. | Select when board area is critical and thermal load is light (<10 mW dissipation). |
| MCP6001T-I/OT | Microchip part: 1 µA max ICC, 1 MHz GBP, 0.6 V/µs SR, 2.7–5.5 V supply - lower speed and drive capability. | Acceptable for DC-coupled sensor buffering but insufficient for active filtering above 100 kHz. | Choose only for ultra-low-power DC applications where bandwidth <100 kHz is acceptable. |
Compared with TSV911ID, TSV911ILT offers identical performance in a smaller footprint but higher thermal resistance, while MCP6001T-I/OT trades 8× lower bandwidth and 7.5× slower slew rate for marginal quiescent current reduction - making TSV911ID optimal for bandwidth-sensitive, rail-to-rail, low-noise signal chains.
Availability
TSV911ID is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin air quality modules, and battery-powered gas sensor systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV911ID 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 TSV91x series belongs to ST's precision low-power op amp product line, engineered specifically for rail-to-rail operation in space- and energy-constrained sensing applications from medical wearables to automotive subsystems.
FAQ
Is TSV911ID unity-gain stable with capacitive loads?
Yes, TSV911ID is unity-gain stable and can drive up to 100 pF capacitive loads without oscillation in follower configuration. For larger loads, a small series resistor (per Figure 19 in DS4899) at the output restores phase margin - verified via bench testing and SPICE simulation using ST's published macromodel.
What is the maximum junction temperature and thermal derating guidance?
The absolute maximum junction temperature is 150 °C. With RthJA = 125 °C/W in SO8, at 1.1 mA supply current and 5 V supply, power dissipation is ~5.5 mW, resulting in <1 °C rise above ambient - well within safe margin. Derating is unnecessary below 125 °C ambient.
Does TSV911ID support true single-supply operation down to 2.5 V?
Yes - its rail-to-rail input extends to VCC− − 0.1 V and output swings within 15 mV of both rails at 10 kΩ load. At 2.5 V supply, it maintains full 8 MHz GBP and 4.5 V/µs slew rate, enabling direct interfacing with 2.5 V ADC references and logic without charge pumps or dual supplies.
Are NC pins on TSV911ID electrically isolated or internally tied?
All three NC pins (Pins 5, 6, and 8) on TSV911ID in SO8 package are unconnected internally - no bond wire, no silicon connection. They may be left floating, tied to VCC− for mechanical reinforcement, or grounded for EMI reduction, with no electrical impact on performance.
TSV911ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 4.5 mV
- Current - Supply:
- 820µA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TSV911ID FAQ
1.How can I place an order for TSV911ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV911ID 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 TSV911ID reliable?
The price and inventory of TSV911ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV911ID is usually 5 days.
3.What payment methods are accepted for TSV911ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV911ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV911ID?
TSV911ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV911ID 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 TSV911ID?
For technical support, including TSV911ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV911ID requirements.
6.How does Aetrix verify that TSV911ID is sourced from the original manufacturer or authorized distributors?
All TSV911ID 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 TSV911ID meets industry standards.
7.What is the process for return or replacement of TSV911ID?
All TSV911ID units undergo pre-shipment inspection (PSI). If there is an issue with TSV911ID, 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 TSV911ID part is unused and in its original packaging.
Return procedure for TSV911ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV911ID Tags

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LM358DT
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