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STMicroelectronics TSV992AIST
- Part No.:
- TSV992AIST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV992AIST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:8,004
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Product details
Overview
TSV992AIST from STMicroelectronics is a dual rail-to-rail input/output operational amplifier in MiniSO8 package, optimized for low-voltage (2.5–5.5 V), low-power (820 µA typ.) applications requiring 20 MHz gain-bandwidth, 1.5 mV max input offset voltage (A grade), and high output drive (35 mA). It serves as a precision signal-conditioning amplifier in battery-powered medical sensors and automotive front-end signal chains.
For engineers reviewing the TSV992AIST datasheet, TSV992AIST pinout, TSV992AIST application, or TSV992AIST equivalent, key selection criteria include its minimum stable gain requirement (≥4 or ≤−3), ultra-low 1 pA typical input bias current, rail-to-rail swing at 2.5 V supply, and suitability for active filtering and sensor interface circuits where power efficiency and DC accuracy are critical.
Technical Context
The TSV992AIST employs a voltage-feedback architecture with internal compensation tailored for non-unity-gain stability-requiring ≥4 V/V in non-inverting or ≤−3 V/V in inverting configurations. Its input stage uses CMOS technology to achieve 1 pA typical input bias current and rail-to-rail common-mode range (VCC− −0.1 V to VCC+ +0.1 V).
Output stage delivers ±35 mA drive capability into resistive loads and maintains 10 V/μs slew rate with 21 nV/√Hz input voltage noise at 10 kHz. Stability under capacitive loading is managed via external series resistor or feedback capacitor, not inherent unity-gain compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - enables direct operation from single-cell Li-ion or 3.3 V logic rails without LDO overhead. |
| Gain-Bandwidth Product | 20 MHz - supports high-speed signal conditioning up to ~5 MHz closed-loop bandwidth at gain ≥4. |
| Input Offset Voltage (max) | 1.5 mV - ensures ≤1.5 mV DC error in precision sensor amplification at room temperature (A grade). |
| Supply Current (typ.) | 820 µA per channel - allows dual-channel operation in sub-2 mA total system budget for portable devices. |
| Input Bias Current (typ.) | 1 pA - minimizes voltage error across high-impedance sources (e.g., pH electrodes, photodiode transimpedance inputs). |
| Output Drive Current | ±35 mA - drives 600 Ω loads to rail while maintaining linearity, suitable for driving ADC reference buffers or analog switches. |
| Slew Rate | 10 V/μs - supports clean 1 Vpp signals up to ~1.5 MHz without slew-induced distortion. |
Pinout & Package
TSV992AIST is supplied in MiniSO8 package (3.0 mm × 3.0 mm, 0.65 mm pitch), RoHS-compliant and moisture sensitivity level 1. Pin 1 is marked with dot; exposed pad is not internally connected and may be left floating or tied to VCC−.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance node accepting differential signal; common connection point for feedback network in inverting configuration. |
| 2 | Non-inverting Input (Channel 1) | High-impedance node for reference or sensor input; supports rail-to-rail common-mode range down to VCC− −0.1 V. |
| 3 | Output (Channel 1) | Class-AB output capable of sourcing/sinking ±35 mA; rail-to-rail swing ensures full dynamic range utilization at low supply. |
| 4 | VCC− (Ground) | Power return path; must be decoupled with 10 nF capacitor near pin to suppress PSRR degradation at high frequencies. |
| 5 | VCC+ (Supply) | Positive supply rail (2.5–5.5 V); connects to local 10 nF decoupling cap to maintain stability and noise immunity. |
| 6 | Output (Channel 2) | Independent output stage identical to Pin 3; enables dual-channel signal processing without cross-talk in shared supply design. |
| 7 | Non-inverting Input (Channel 2) | Second high-Z input; electrically isolated from Channel 1 inputs-no internal coupling or matching guarantee between channels. |
| 8 | Inverting Input (Channel 2) | Second differential input node; used with Pin 6 and Pin 7 to configure second independent op-amp stage. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal handling from 0 V to VCC with <40 mV headroom at both extremes, maximizing ADC utilization in low-voltage systems. |
| 20 MHz GBW at 820 µA | Delivers 25× higher speed-per-mA than typical micropower op-amps (e.g., MCP6002), enabling faster settling in portable data loggers. |
| A-grade 1.5 mV Vio (max) | Reduces calibration burden in medical instrumentation; eliminates need for external trimming in 12-bit precision applications. |
| 1 pA typical input bias current | Permits use with >100 MΩ source impedances (e.g., piezoelectric sensors) without significant DC error or drift. |
| Stable for gain ≥4 or ≤−3 | Eliminates need for external compensation in most gain-setting configurations-reduces BOM count versus unity-gain-stable alternatives. |
Applications
| Portable ECG Front-End | Battery-Powered Gas Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in handheld ECG monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier first stage (gain = 100), with one channel for lead I and second for right-leg drive feedback. Use Value: 1.5 mV max Vio ensures baseline stability over temperature; rail-to-rail output drives 12-bit SAR ADC directly without level-shifting. |
Use Scenario: Conditioning output of electrochemical CO sensor with 100 kΩ transducer impedance and 50 nA full-scale current. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 10 MΩ feedback resistor and 20 MHz GBW for fast step response. Use Value: 1 pA input bias current prevents >100 mV error across 10 MΩ; 820 µA quiescent current extends 2xAA battery life to >12 months. |
| Automotive Cabin Air Quality Module | Industrial Handheld Multimeter Input Stage |
Use Scenario: Signal conditioning for NDIR CO₂ sensor in vehicle HVAC control, operating across −40 °C to 125 °C ambient. IC Role / Device Role / Timing Role: Precision buffer and filter driver for analog front-end ADC, rejecting engine noise via high CMRR (min 53 dB). Use Value: Guaranteed 1.5 mV Vio over full temperature range reduces calibration frequency; AEC-Q100 qualified variants available (TSV992AIYST). |
Use Scenario: High-impedance voltage measurement path (10 MΩ input) with autoranging and 16-bit resolution. IC Role / Device Role / Timing Role: Guard driver and input buffer isolating DMM input from internal switching and reference circuitry. Use Value: Rail-to-rail input accepts ±2.5 V signals at 2.5 V supply; 21 nV/√Hz noise preserves effective resolution above 14 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV912AIST | 8 MHz GBW, 550 µA supply current, unity-gain stable | Better suited for low-frequency, ultra-low-power applications (e.g., smoke detector analog front-end) where 20 MHz is unnecessary | Select when gain = 1 is required and bandwidth <10 MHz suffices; saves ~270 µA per channel vs. TSV992AIST |
| MCP6022-E/SN | 10 MHz GBW, 1 mA supply current, 3 mV max Vio, rail-to-rail I/O | Higher offset and lower bandwidth limit use in high-accuracy, high-speed sensor interfaces | Choose for legacy Microchip design continuity or where 3 mV Vio is acceptable; avoid in medical-grade DC-critical paths |
Compared with TSV912AIST and MCP6022-E/SN, the TSV992AIST uniquely balances 20 MHz bandwidth, A-grade offset, and sub-1 mA consumption-making it optimal for next-generation portable diagnostics and automotive sensing where speed, accuracy, and battery life co-constrain design.
Availability
TSV992AIST is available at Aetrix Electronics and suitable for battery-powered medical devices, automotive cabin air quality modules, portable gas analyzers, and industrial handheld test equipment requiring stable component supply across extended temperature ranges (−40 °C to 125 °C).
Supply support for TSV992AIST 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 sensor solutions for industrial, automotive, and consumer markets.
The TSV99x family was developed specifically for high-precision, low-voltage signal conditioning in space- and power-constrained applications-emphasizing rail-to-rail operation, low input bias current, and optimized gain-bandwidth efficiency.
FAQ
Is the TSV992AIST unity-gain stable?
No, the TSV992AIST is not unity-gain stable. It requires a minimum closed-loop gain of 4 V/V in non-inverting configuration or −3 V/V in inverting configuration to ensure phase margin ≥45°. For unity-gain applications, a small series resistor (e.g., 10–50 Ω) at the output or feedback capacitor is mandatory per Section 5.1 of DS4975.
What is the maximum capacitive load the TSV992AIST can drive without oscillation?
Driving >100 pF directly causes peaking and potential instability. With a 10 Ω series resistor at the output, stable operation is confirmed up to 1 nF capacitive load in follower configuration (Figure 16, DS4975 Rev 16). For larger loads, add a feedback capacitor (e.g., 2–10 pF) in parallel with Rf in inverting configurations.
Does the exposed pad on the MiniSO8 package require PCB connection?
No-the exposed pad of the TSV992AIST MiniSO8 package is not internally connected to any die node. Per Figure 20 and DS4975 page 17, it may be left floating or connected to VCC− for improved thermal dissipation; no electrical function is assigned to it.
How does the TSV992AIST perform at 2.5 V supply compared to 5 V?
At 2.5 V, the TSV992AIST maintains full rail-to-rail input/output swing, 20 MHz GBW, and 820 µA supply current. Output drive drops slightly (±32 mA sink/source vs. ±35 mA at 5 V), and CMRR decreases from min 57 dB to 53 dB-but all key specs remain guaranteed across 2.5–5.5 V per Table 2 and Tables 3–5.
TSV992AIST 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
TSV992AIST FAQ
1.How can I place an order for TSV992AIST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV992AIST 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 TSV992AIST reliable?
The price and inventory of TSV992AIST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV992AIST is usually 5 days.
3.What payment methods are accepted for TSV992AIST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV992AIST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV992AIST?
TSV992AIST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV992AIST 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 TSV992AIST?
For technical support, including TSV992AIST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV992AIST requirements.
6.How does Aetrix verify that TSV992AIST is sourced from the original manufacturer or authorized distributors?
All TSV992AIST 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 TSV992AIST meets industry standards.
7.What is the process for return or replacement of TSV992AIST?
All TSV992AIST units undergo pre-shipment inspection (PSI). If there is an issue with TSV992AIST, 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 TSV992AIST part is unused and in its original packaging.
Return procedure for TSV992AIST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV992AIST Tags
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LM358DT
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