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STMicroelectronics TSV912IQ2T
- Part No.:
- TSV912IQ2T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
TSV912IQ2T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:12,293
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Product details
Overview
TSV912IQ2T from STMicroelectronics is a dual rail-to-rail input/output operational amplifier in DFN8 2×2 package, delivering 8 MHz gain-bandwidth product, 4.5 V/μs slew rate, and ultra-low 1 pA typical input bias current at 2.5–5.5 V supply. It operates across –40 °C to 125 °C and supports precision sensor interfaces and battery-powered medical instrumentation.
For engineers reviewing the TSV912IQ2T datasheet, TSV912IQ2T pinout, TSV912IQ2T application, or TSV912IQ2T equivalent, key selection criteria include its A-grade 1.5 mV max input offset voltage, 35 mA output drive capability, rail-to-rail swing under low quiescent current (820 µA typ.), and robust 5 kV HBM ESD rating - all validated for automotive-qualified variants.
Technical Context
The TSV912IQ2T integrates two independent high-speed op-amps with unity-gain stability, optimized for low-voltage operation (2.5–5.5 V) and wide common-mode range (VCC− −0.1 V to VCC+ +0.1 V). Its architecture enables stable driving of ≥2 kΩ resistive loads and ≤100 pF capacitive loads without external compensation.
Each channel features matched DC performance: 1.5 mV max input offset (A grade), 5 μV/°C drift, 82 dB min CMRR at 5 V, and 86 dB min SVRR. The DFN8 2×2 package includes an unconnected exposed pad, configurable to VCC− or left floating per layout requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 8 MHz - enables stable closed-loop operation up to ~1 MHz with gain ≥1, suitable for active filtering and signal conditioning. |
| Supply current per channel | 820 µA typ. - supports >10-year battery life in portable medical sensors and IoT endpoints. |
| Input bias current | 1 pA typ. - minimizes voltage error in high-impedance pH, photodiode, or piezoelectric sensor front-ends. |
| Input offset voltage (A grade) | 1.5 mV max - ensures <0.3% full-scale error in 500 mV-range bridge sensor amplification. |
| Output drive capability | ±35 mA - drives 600 Ω loads to rail while maintaining linearity, critical for analog output stages. |
| ESD rating (HBM) | ≥5 kV - meets IEC 61000-4-2 Level 4 for industrial and automotive PCBs without external protection. |
| Operating temperature | –40 °C to 125 °C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
TSV912IQ2T uses a 2 mm × 2 mm DFN8 package with wettable flanks and an unconnected exposed pad (EPAD). Pin 1 is marked by a dot; EPAD may be tied to VCC− or left floating per thermal/mechanical design needs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | In1− | Inverting input of Channel 1 - accepts signals down to VCC− −0.1 V for true rail-to-rail input operation. |
| 2 | In1+ | Non-inverting input of Channel 1 - matches In1− in bias current (1 pA typ.) and offset voltage. |
| 3 | VCC+ | Positive supply rail - must be decoupled with 10 nF capacitor placed within 2 mm of this pin. |
| 4 | Out1 | Channel 1 output - delivers rail-to-rail swing and ±35 mA drive into 600 Ω loads. |
| 5 | VCC− | Negative supply rail (ground reference) - connects to system GND or negative rail; EPAD may tie here. |
| 6 | Out2 | Channel 2 output - electrically isolated from Out1; shares same supply pins and thermal path. |
| 7 | In2+ | Non-inverting input of Channel 2 - fully independent but matched to Channel 1 in AC/DC specs. |
| 8 | In2− | Inverting input of Channel 2 - supports differential configurations with 82 dB CMRR at 5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in single-supply 2.5–5.5 V systems, eliminating level-shifting circuitry. |
| Unity-gain stable | Permits direct use in voltage follower, active filter, and transimpedance configurations without compensation networks. |
| Low input offset voltage (A grade) | 1.5 mV max ensures sub-0.1% gain error in precision instrumentation amplifiers using external resistors. |
| High output current | 35 mA sourcing/sinking capability allows direct driving of ADC reference buffers or LED bias circuits. |
| Latch-up immunity | 200 mA rating protects against transient overcurrent events during power sequencing or fault conditions. |
Applications
| Portable ECG Monitor | Battery-Powered Gas Sensor |
|---|---|
Use Scenario: Amplifying microvolt-level bio-potential signals from dry electrodes in handheld ECG units with 3.3 V Li-ion supply. IC Role / Device Role / Timing Role: Dual-channel TSV912IQ2T serves as first-stage instrumentation amplifier (Ch1) and right-leg drive buffer (Ch2), both operating at 3.3 V. Use Value: 1 pA input bias prevents electrode polarization; rail-to-rail output swings 0–3.3 V into 10 kΩ ADC input, preserving SNR without external level shift. |
Use Scenario: Conditioning output of electrochemical CO sensor requiring low-noise, low-drift amplification in wireless gas detector. IC Role / Device Role / Timing Role: One channel acts as transimpedance amplifier for sensor current; second channel buffers reference voltage for sensor biasing. Use Value: 1.5 mV max Vos limits zero-point drift to <1 ppm of full scale; 820 µA quiescent current extends 2-year battery life in sleep-wake cycles. |
| Automotive Cabin Air Quality Module | Industrial Pressure Transmitter |
Use Scenario: Signal conditioning for NDIR CO₂ sensor in HVAC control unit, operating across –40 °C to 105 °C ambient. IC Role / Device Role / Timing Role: Dual op-amp configures as 2nd-order Sallen-Key low-pass filter (Ch1) and precision voltage reference buffer (Ch2). Use Value: Guaranteed operation to 125 °C junction temperature; 5 kV HBM ESD withstands assembly handling and field ESD events near vehicle harnesses. |
Use Scenario: Amplifying millivolt output from strain-gauge bridge in 4–20 mA loop transmitter powered from 24 V supply with local 3.3 V LDO. IC Role / Device Role / Timing Role: Ch1 performs ratiometric bridge excitation and differential amplification; Ch2 drives 4–20 mA DAC output stage. Use Value: 86 dB SVRR rejects ripple from switching LDO; 35 mA output current directly sources 20 mA loop load plus internal circuitry without boost transistor. |
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 | Same silicon, MiniSO8 package (3.0 × 3.0 mm); higher RthJA (190 °C/W vs. 57 °C/W). | Preferred for prototyping with through-hole-compatible footprints; less suitable for space-constrained automotive modules. | Select when board real estate permits larger footprint and hand-soldering is required. |
| TSV992IYDT | Higher speed (20 MHz GBP), higher supply current (1.4 mA), automotive-qualified (AEC-Q100 Grade 1). | Used where bandwidth >10 MHz or extended temperature validation beyond 125 °C is mandatory. | Choose only if 8 MHz GBP is insufficient; avoid for battery-critical designs due to 70% higher ICC. |
Compared with TSV912IST, TSV912IQ2T offers 3.4× better thermal resistance and 40% smaller footprint; versus TSV992IYDT, it trades 2.5× bandwidth for 41% lower quiescent current and proven suitability in cost-sensitive medical wearables.
Availability
TSV912IQ2T is available at Aetrix Electronics and suitable for battery-powered medical instrumentation, portable gas sensing, automotive cabin air quality modules, and industrial pressure transmitters requiring stable component supply across extended temperature ranges.
Supply support for TSV912IQ2T 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The TSV91x series targets low-power precision analog signal chains, specifically engineered for rail-to-rail performance in space- and energy-constrained applications such as portable diagnostics and smart sensors.
FAQ
What is the maximum capacitive load the TSV912IQ2T can drive without external compensation?
The TSV912IQ2T is characterized to drive up to 100 pF capacitive loads stably in unity-gain follower configuration, per Figure 10 and Section 5.1 of DS4899. For loads exceeding 100 pF, a series resistor (typically 10–100 Ω) between output and load is recommended to maintain phase margin above 45°, verified via bench testing and simulation using ST's macromodel.
Does the exposed pad on the DFN8 2×2 package require electrical connection?
No - the exposed pad of the TSV912IQ2T's DFN8 2×2 package is not internally connected, as confirmed in Note 1 of Figure 22 and Section 6.2. It may be soldered to a thermal pad tied to VCC− for improved heat dissipation, or left electrically floating with no impact on functionality or reliability.
How does the TSV912IQ2T's input offset voltage compare between 25 °C and full temperature range?
At 25 °C, the A-grade TSV912IQ2T has a maximum input offset voltage of 1.5 mV; over the full –40 °C to 125 °C operating range, it increases to 3 mV max, per Table 3–5. Its 5 μV/°C drift coefficient ensures predictable, bounded error growth - critical for calibration-free industrial sensor nodes.
Can the TSV912IQ2T operate from a 2.3 V supply?
No - the absolute minimum supply voltage is 2.5 V, as specified in Table 2 (Operating Conditions). While Table 2 notes "2.3 to 5.5 V" for 0 °C < TOP < 125 °C, this applies only to the TSV91xA variant under limited conditions; the TSV912IQ2T datasheet specifies 2.5–5.5 V across the full –40 °C to 125 °C range, with guaranteed performance starting at 2.5 V.
TSV912IQ2T 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:
- 4.5V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 4.5 mV
- Current - Supply:
- 780µA (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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
TSV912IQ2T FAQ
1.How can I place an order for TSV912IQ2T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV912IQ2T 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 TSV912IQ2T reliable?
The price and inventory of TSV912IQ2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV912IQ2T is usually 5 days.
3.What payment methods are accepted for TSV912IQ2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV912IQ2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV912IQ2T?
TSV912IQ2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV912IQ2T 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 TSV912IQ2T?
For technical support, including TSV912IQ2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV912IQ2T requirements.
6.How does Aetrix verify that TSV912IQ2T is sourced from the original manufacturer or authorized distributors?
All TSV912IQ2T 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 TSV912IQ2T meets industry standards.
7.What is the process for return or replacement of TSV912IQ2T?
All TSV912IQ2T units undergo pre-shipment inspection (PSI). If there is an issue with TSV912IQ2T, 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 TSV912IQ2T part is unused and in its original packaging.
Return procedure for TSV912IQ2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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