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STMicroelectronics TSV992IQ2T
- Part No.:
- TSV992IQ2T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
TSV992IQ2T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,115
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Product details
Overview
TSV992IQ2T 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, 820 µA typical supply current per channel, 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 TSV992IQ2T datasheet, TSV992IQ2T pinout, TSV992IQ2T application, or TSV992IQ2T equivalent, key selection criteria include its 20 MHz bandwidth at gain ≥4, ultra-low 1 pA typical input bias current, rail-to-rail I/O swing, stability requirements (gain ≥4 or ≤−3), and DFN8 2×2 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV992IQ2T implements a high-speed, low-power CMOS op-amp architecture with internal compensation requiring minimum closed-loop gain of 4 (non-inverting) or −3 (inverting) for phase margin ≥45°. Its input stage uses P-channel JFET-like transistors 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 with rail-to-rail swing into 600 Ω loads, while maintaining 10 V/μs slew rate and 21 nV/√Hz input voltage noise at 10 kHz. Stability under capacitive loading is managed via external series output resistor or feedback capacitor, not internal compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 20 MHz - supports 100 kHz–1 MHz signal amplification with ≥200× closed-loop gain before bandwidth roll-off. |
| Input offset voltage (max) | 1.5 mV - enables <0.03% error in 50 mV full-scale sensor interfaces without trimming. |
| Supply current per channel | 820 µA typ. - allows dual-opamp operation on coin-cell batteries for >1-year runtime in always-on monitoring. |
| Input bias current | 1 pA typ. - minimizes voltage error across high-impedance sources (>100 MΩ), e.g., pH electrodes or piezoelectric sensors. |
| Common-mode input range | VCC− −0.1 V to VCC+ +0.1 V - accepts signals down to ground and up to supply rail, simplifying single-supply level-shifting. |
| Output drive capability | ±35 mA - drives 600 Ω loads to rail with <150 mV saturation, supporting direct interface to ADC reference buffers or LED drivers. |
| Slew rate | 10 V/μs - handles 1 Vpp signals up to ~1.6 MHz without distortion, suitable for active anti-aliasing filters. |
Pinout & Package
TSV992IQ2T is housed in a thermally enhanced DFN8 2×2 mm package with exposed pad (unconnected, may be floated or tied to VCC−). Pin 1 = IN1+, Pin 2 = IN1−, Pin 3 = OUT1, Pin 4 = VCC−, Pin 5 = VCC+, Pin 6 = IN2−, Pin 7 = IN2+, Pin 8 = OUT2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input of Channel 1 | Accepts differential signal referenced to Channel 1 non-inverting input; high-impedance node requiring guard trace routing. |
| 2 | Non-inverting input of Channel 1 | High-Z input with 1 pA bias current; connects directly to high-resistance sensor outputs without loading error. |
| 3 | Output of Channel 1 | Rail-to-rail capable output driving up to ±35 mA; requires local 10 nF decoupling at VCC+ and VCC− pins. |
| 4 | Negative supply (VCC−) | Ground reference for dual-supply operation or system GND in single-supply designs; connects to exposed pad if used as thermal path. |
| 5 | Positive supply (VCC+) | 2.5–5.5 V supply input; must be decoupled within 2 mm of pin using 10 nF ceramic capacitor to suppress PSRR degradation. |
| 6 | Non-inverting input of Channel 2 | Independent high-Z input for second signal path; identical electrical specs to Pin 2, enabling matched dual-channel filtering. |
| 7 | Inverting input of Channel 2 | Differential partner to Pin 6; supports independent gain configuration per channel without crosstalk. |
| 8 | Output of Channel 2 | Second rail-to-rail output with same drive strength and settling behavior as Pin 3; shares VCC+ and VCC− supply rails. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 2.5 V–5.5 V single-supply systems without level-shifting circuitry. |
| 20 MHz gain-bandwidth at gain ≥4 | Supports high-frequency active filters (e.g., 2nd-order Butterworth at 100 kHz) with minimal phase error. |
| 1 pA typical input bias current | Reduces voltage error to <10 µV across 10 MΩ source impedance, critical for electrochemical sensor front-ends. |
| Low 820 µA supply current per channel | Permits integration of two precision op-amps in ultra-low-power wearable devices with sub-2 mA total analog subsystem current. |
| Stable for gains ≥4 or ≤−3 | Eliminates need for external compensation in standard non-inverting amplifier and inverting amplifier configurations. |
Applications
| ECG Signal Amplification | Portable Blood Glucose Meter |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes with high common-mode interference. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: Channel 1 configures as difference amplifier, Channel 2 as right-leg drive buffer. Use Value: 1.5 mV max Vio and 1 pA Iib minimize baseline drift and electrode polarization errors; rail-to-rail I/O preserves full 0–3.3 V ADC input range. |
Use Scenario: Conditioning amperometric current from glucose oxidase enzyme reaction into measurable voltage. IC Role / Device Role / Timing Role: Transimpedance amplifier (Channel 1) + reference voltage buffer (Channel 2) for electrochemical cell biasing. Use Value: 820 µA/channel current draw extends AAA battery life to >6 months; 20 MHz GBP ensures fast settling (<1 µs) after sample injection pulses. |
| Automotive Cabin Air Quality Sensor | Industrial Thermocouple Signal Conditioning |
|
Use Scenario: Amplifying low-level output from NDIR CO₂ sensor with temperature-compensated photodiode array. IC Role / Device Role / Timing Role: Dual-stage signal chain: Channel 1 as low-noise preamp (21 nV/√Hz), Channel 2 as 2nd-order active low-pass filter. Use Value: −40°C to +125°C operating range meets automotive AEC-Q100 Grade 2; 5 kV HBM ESD rating protects against assembly handling damage. |
Use Scenario: Cold-junction compensation and linearization of K-type thermocouple output across −40°C to +200°C. IC Role / Device Role / Timing Role: Precision voltage follower (Channel 1) for RTD bridge reference + programmable-gain amplifier (Channel 2) for thermocouple mV scaling. Use Value: 7.5 mV max Vio over temperature ensures <0.5°C measurement error; CMR ≥53 dB rejects 50/60 Hz power-line interference in factory environments. |
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 |
|---|---|---|---|
| TSV912IDT | 8 MHz GBP, unity-gain stable, 1.1 mA ICC, 4.5 mV max Vio (standard grade) | Better suited for DC-coupled, low-frequency sensor buffering where bandwidth <1 MHz suffices | Select when lower cost and unity-gain stability outweigh need for 20 MHz speed and 1.5 mV Vio. |
| LMV722MMX/NOPB | 10 MHz GBP, rail-to-rail I/O, 1.25 mA ICC, 3.5 mV max Vio, SO-8 package only | Larger footprint and higher quiescent current limit use in space-constrained portable devices | Choose only if DFN8 2×2 assembly is unavailable and SO-8 reflow compatibility is required. |
Compared with TSV912IDT and LMV722MMX/NOPB, the TSV992IQ2T provides 2.5× higher bandwidth and 2–3× lower input offset voltage in a 4× smaller DFN8 package, making it optimal for high-accuracy, high-density portable medical and automotive sensing where speed and precision coexist.
Availability
TSV992IQ2T is available at Aetrix Electronics and suitable for battery-powered medical devices, portable instrumentation, automotive cabin air quality monitors, and industrial thermocouple signal conditioners requiring stable component supply across extended temperature ranges.
Supply support for TSV992IQ2T 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 TSV99x family targets precision, low-voltage analog signal conditioning in resource-constrained systems - emphasizing rail-to-rail operation, nanoampere input bias, and optimized speed/power trade-offs for sensor front-ends and portable equipment.
FAQ
Is TSV992IQ2T unity-gain stable?
No. The TSV992IQ2T is not unity-gain stable and requires minimum closed-loop gain of 4 (non-inverting) or −3 (inverting) to maintain ≥45° phase margin. For unity-gain applications, a small series resistor (≥10 Ω) at the output or feedback capacitor is required to ensure stability, as documented in Section 5.1 of DS4975.
What is the function of the exposed pad on the DFN8 2×2 package?
The exposed pad on the TSV992IQ2T's DFN8 2×2 package is not internally connected to any die node. It may be left floating or soldered to VCC− (ground in single-supply designs) to improve thermal dissipation. STMicroelectronics recommends connecting it to VCC− for optimal junction temperature control under continuous 35 mA output load conditions.
Does TSV992IQ2T support operation at 2.5 V supply?
Yes. The TSV992IQ2T is fully specified from 2.5 V to 5.5 V supply voltage, with guaranteed performance including 20 MHz GBP, 1.5 mV max Vio (A grade), and rail-to-rail input/output swing across this range. Electrical characteristics tables in DS4975 explicitly validate operation at 2.5 V, 3.3 V, and 5 V.
How does the input offset voltage drift behave over temperature?
The TSV992IQ2T exhibits a typical input offset voltage drift of 2 µV/°C, resulting in ≤3 mV total Vio variation across the full −40°C to +125°C operating range. This low drift is confirmed in Table 3–5 of DS4975 and enables stable DC-coupled amplification without periodic auto-zeroing in long-duration portable measurements.
TSV992IQ2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- 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-DFN (2x2)
TSV992IQ2T FAQ
1.How can I place an order for TSV992IQ2T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV992IQ2T 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 TSV992IQ2T reliable?
The price and inventory of TSV992IQ2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV992IQ2T is usually 5 days.
3.What payment methods are accepted for TSV992IQ2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV992IQ2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV992IQ2T?
TSV992IQ2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV992IQ2T 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 TSV992IQ2T?
For technical support, including TSV992IQ2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV992IQ2T requirements.
6.How does Aetrix verify that TSV992IQ2T is sourced from the original manufacturer or authorized distributors?
All TSV992IQ2T 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 TSV992IQ2T meets industry standards.
7.What is the process for return or replacement of TSV992IQ2T?
All TSV992IQ2T units undergo pre-shipment inspection (PSI). If there is an issue with TSV992IQ2T, 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 TSV992IQ2T part is unused and in its original packaging.
Return procedure for TSV992IQ2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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