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STMicroelectronics TSV992IST
- Part No.:
- TSV992IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV992IST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:8,870
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Product details
Overview
TSV992IST from STMicroelectronics is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It delivers 20 MHz gain-bandwidth at 4 V/V minimum stable gain, consumes only 820 µA per channel, supports 2.5–5.5 V supply, and features 1.5 mV max input offset voltage (A grade) - enabling precision signal conditioning in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the TSV992IST datasheet, TSV992IST pinout, TSV992IST application, or TSV992IST equivalent, key selection criteria include its 20 MHz bandwidth with gain ≥ 4 stability requirement, 35 mA output drive capability, ultra-low 1 pA input bias current, rail-to-rail swing, and MiniSO8 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV992IST employs a high-speed voltage-feedback architecture with internal compensation tuned for stable operation only at gains ≥ 4 (non-inverting) or ≤ –3 (inverting), making it unsuitable for unity-gain follower configurations without external stabilization. Its input stage uses complementary bipolar transistors to achieve 1 pA typical input bias current and rail-to-rail common-mode range extending 0.1 V beyond rails.
Output stage delivers symmetrical sourcing/sinking up to 35 mA while maintaining rail-to-rail swing into 600 Ω loads, and the device maintains 75 dB CMRR and 86 dB SVR across temperature. Thermal resistance of the MiniSO8 package is 190 °C/W, supporting operation from –40 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - enables accurate amplification of signals up to ~5 MHz at gain = 4 with <45° phase margin |
| Supply current per channel | 820 µA typ. - allows dual op-amp operation on coin-cell or single Li-ion batteries for >1-year runtime |
| Input offset voltage (A grade) | 1.5 mV max - ensures ≤0.3% error in 500 mV full-scale sensor interfaces without trimming |
| Input bias current | 1 pA typ. - minimizes voltage error in high-impedance pH or photodiode front-ends (>1 GΩ sources) |
| Output drive capability | ±35 mA - drives 600 Ω loads to rail with <150 mV saturation, supporting active filters with low-Z feedback |
| Common-mode input range | (VCC−) − 0.1 V to (VCC+) + 0.1 V - accepts inputs down to ground and up to supply in single-supply systems |
| Stable gain range | ≥ 4 (non-inverting) or ≤ −3 (inverting) - mandates external resistor networks for stability; not unity-gain stable |
Pinout & Package
The TSV992IST is housed in an 8-pin MiniSO8 package (3.0 mm × 3.0 mm, 0.65 mm pitch), with exposed pad electrically unconnected and recommended to be soldered to ground plane for thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Channel 1) | High-impedance node accepting differential signal; referenced to non-inverting input for gain-setting |
| 2 | Non-inverting input (Channel 1) | Accepts reference or sensor signal; common-mode range extends beyond rails by 0.1 V |
| 3 | Output (Channel 1) | Capable of ±35 mA drive; rail-to-rail swing into 600 Ω load with <150 mV headroom |
| 4 | VCC− (GND) | Power return for both channels; must be decoupled with 10 nF capacitor near pin |
| 5 | VCC+ (Supply) | 2.5–5.5 V positive rail; requires local 10 nF ceramic decoupling to minimize PSRR degradation |
| 6 | Output (Channel 2) | Independent output stage; shares same supply pins but isolated signal path from Channel 1 |
| 7 | Non-inverting input (Channel 2) | Second high-Z input; identical specs to Pin 2, enabling dual-sensor or differential pair use |
| 8 | Inverting input (Channel 2) | Second differential input terminal; matched offset and bias performance to Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 3.3 V or 5 V single-supply systems without level-shifting circuitry |
| 20 MHz GBW at 4 V/V gain | Supports anti-aliasing and reconstruction filters up to 5 MHz with <1% gain error in closed-loop design |
| 1 pA input bias current | Reduces leakage-induced offset in piezoelectric, capacitive, or electrochemical sensor interfaces |
| Low 1.5 mV max VOS (A grade) | Eliminates need for manual nulling in portable ECG front-ends or strain gauge bridges |
| ESD protection ≥5 kV HBM | Survives handling and board-level ESD events without latch-up or parametric shift in field-deployed devices |
Applications
| Portable ECG Monitor Front-End | Battery-Powered Gas Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in handheld cardiac monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier first stage, providing gain, filtering, and rail-to-rail buffering before ADC sampling. Use Value: 1 pA input bias prevents electrode polarization drift; 1.5 mV VOS ensures baseline stability over 8-hour clinical sessions without recalibration. | Use Scenario: Conditioning output from metal-oxide semiconductor (MOS) gas sensors operating at 3.3 V with high source impedance. IC Role / Device Role / Timing Role: Transimpedance amplifier and active low-pass filter driving 12-bit SAR ADC in IoT air-quality nodes. Use Value: Rail-to-rail input accepts full 0–3.3 V sensor swing; 20 MHz GBW supports 10 kHz noise filtering without phase lag distortion. |
| Automotive Cabin Temperature Controller | Industrial Portable Multimeter Input Stage |
Use Scenario: Amplifying thermistor voltage divider outputs in vehicle HVAC control modules under wide temperature (-40 °C to +125 °C). IC Role / Device Role / Timing Role: Precision gain block compensating for thermistor nonlinearity before microcontroller ADC acquisition. Use Value: 75 dB CMRR rejects ignition noise; 820 µA/channel current draw meets ASAM power budget for always-on cabin monitoring. | Use Scenario: High-impedance buffer and programmable gain stage in handheld digital multimeters measuring µA–mA currents and mV–V voltages. IC Role / Device Role / Timing Role: Input protection and signal conditioning IC isolating DMM microcontroller from user-connected test leads. Use Value: 5 kV HBM ESD rating withstands repeated probe contact; rail-to-rail output ensures full ADC code utilization across ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV912IST | 8 MHz GBW, unity-gain stable, 550 µA/ch supply current, same MiniSO8 package | Lower bandwidth limits use in >2 MHz active filters; better suited for DC-coupled sensor buffers where stability simplifies layout | Select when unity-gain operation is required and 20 MHz bandwidth is unnecessary |
| TSV772IST | 20 MHz GBW, unity-gain stable, 1.3 mA/ch supply current, same MiniSO8 package | Higher quiescent current reduces battery life; eliminates need for external stabilization resistors in follower configs | Select when unity-gain stability is mandatory and power budget allows +58% current increase |
Compared with TSV912IST, the TSV992IST trades unity-gain stability for 2.5× higher bandwidth and lower offset voltage; compared with TSV772IST, it saves 470 µA/channel at the cost of requiring minimum gain ≥4 - favoring designs where gain is fixed and power is critical.
Availability
TSV992IST is available at Aetrix Electronics and suitable for battery-powered medical instrumentation, automotive cabin sensors, and portable test equipment requiring stable component supply with guaranteed long-term availability and AEC-Q100-compliant variants.
Supply support for TSV992IST 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 sensing solutions for industrial, automotive, and consumer markets.
The TSV99x family was developed specifically for precision, low-voltage signal conditioning in space- and power-constrained applications - emphasizing rail-to-rail operation, ultra-low input bias, and optimized speed/power trade-offs for sensor front-ends and portable electronics.
FAQ
Can the TSV992IST be used in unity-gain buffer configuration?
No - the TSV992IST is not unity-gain stable and requires minimum closed-loop gain of 4 (non-inverting) or –3 (inverting) for phase margin ≥45°. Using it as a follower without external compensation causes oscillation. Stability can be achieved by adding a series resistor (≥100 Ω) between output and load or by using a feedback capacitor in inverting configurations.
What is the maximum capacitive load the TSV992IST can drive without instability?
At gain ≥4, the TSV992IST remains stable with up to 100 pF capacitive load when configured with Rf = 10 kΩ and RL = 2 kΩ. Driving larger capacitive loads (e.g., cables or ADC input capacitance >100 pF) requires isolation via a series resistor or feedback capacitor - see Figure 16 and 17 in DS4975 Rev 16 for validated values.
Does the exposed pad on the MiniSO8 package require electrical connection?
No - the exposed pad on the TSV992IST's MiniSO8 package is not internally connected. It may be left floating or soldered to the PCB ground plane solely for thermal conduction. No electrical tie to VCC− or any other net is required or recommended per STMicroelectronics' package note in DS4975 page 17.
How does the TSV992IST's input offset voltage drift affect long-term accuracy?
The TSV992IST exhibits ∆VIO/∆T = 2 µV/°C maximum, meaning over a 100 °C temperature span (–40 °C to +60 °C), offset drift contributes ≤0.2 mV additional error - less than 13% of its 1.5 mV max initial offset. This makes it suitable for uncalibrated portable instruments where ambient temperature varies moderately.
TSV992IST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 820µA (x2 Channels)
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSV992IST FAQ
1.How can I place an order for TSV992IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV992IST 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 TSV992IST reliable?
The price and inventory of TSV992IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV992IST is usually 5 days.
3.What payment methods are accepted for TSV992IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV992IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV992IST?
TSV992IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV992IST 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 TSV992IST?
For technical support, including TSV992IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV992IST requirements.
6.How does Aetrix verify that TSV992IST is sourced from the original manufacturer or authorized distributors?
All TSV992IST 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 TSV992IST meets industry standards.
7.What is the process for return or replacement of TSV992IST?
All TSV992IST units undergo pre-shipment inspection (PSI). If there is an issue with TSV992IST, 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 TSV992IST part is unused and in its original packaging.
Return procedure for TSV992IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV992IST Tags
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