STMicroelectronics TS912AID
- Part No.:
- TS912AID
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS912AID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:3,864
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Product details
Overview
TS912AID from STMicroelectronics is a rail-to-rail input/output CMOS dual operational amplifier operating from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual supply), featuring 2 mV max input offset voltage, 1 pA typical input bias current, and 200 μA per amplifier supply current at 3 V. It drives 600 Ω loads with rail-to-rail output swing within 40 mV of rails and supports industrial temperature range (−40 °C to +125 °C) in SO-8 package.
For engineers reviewing the TS912AID datasheet, TS912AID pinout, TS912AID application, or TS912AID equivalent, key selection criteria include rail-to-rail I/O capability under low-voltage operation, ultra-low input bias current for high-impedance sensor interfacing, guaranteed performance across 2.7–16 V supply, and SO-8 packaging for space-constrained analog signal conditioning.
Technical Context
The TS912AID employs a CMOS input stage enabling rail-to-rail common-mode input range (VCC− − 0.2 V to VCC+ + 0.2 V) and delivers rail-to-rail output swing limited only by internal output stage saturation-reaching VCC− + 30 mV and VCC+ − 40 mV at 10 kΩ load, and VCC− + 300 mV / VCC+ − 400 mV at 600 Ω load.
Its architecture integrates latch-up immunity and 3 kV HBM ESD protection, with gain-bandwidth product scaling from 0.8 MHz (3 V) to 1.4 MHz (10 V), slew rate increasing from 0.4 V/μs (3 V) to 1.3 V/μs (10 V), and phase margin improving from 30° to 40° as supply rises-enabling stable unity-gain operation across its full voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V single supply - enables direct interface with Li-ion, 3.3 V, and 12 V systems without level-shifting. |
| Input Offset Voltage | 2 mV max - ensures ≤2 mV DC error in precision transducer amplification and low-level signal conditioning. |
| Input Bias Current | 1 pA typ. - permits use with >1 GΩ source impedances (e.g., pH electrodes, photodiode TIA feedback networks). |
| Supply Current per Amp | 200 μA at 3 V - supports battery-powered instrumentation with <500 μA total quiescent draw for dual-channel operation. |
| Output Drive Capability | ±40 mA short-circuit current - sustains 600 Ω load drive while maintaining rail-to-rail swing and stability. |
| Gain-Bandwidth Product | 1 MHz at 5 V - provides sufficient bandwidth for anti-aliasing filters, active RC filters, and sensor signal amplification up to ~100 kHz. |
| Common-Mode Rejection | 70 dB min. - rejects power-supply noise and ground bounce in single-supply mixed-signal environments. |
Pinout & Package
TS912AID is supplied in an SO-8 (Small Outline Integrated Circuit, 8-pin) plastic micropackage compliant with ECOPACK® environmental standards, measuring 4.90 mm × 6.00 mm × 1.75 mm (max height), with 1.27 mm lead pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance CMOS node accepting differential input signals; referenced to non-inverting input (Pin 2) for closed-loop gain configuration. |
| 2 | Non-Inverting Input (Amplifier A) | High-impedance CMOS node used for positive feedback or reference biasing; supports rail-to-rail common-mode range down to VCC− − 0.2 V. |
| 3 | Output (Amplifier A) | Rail-to-rail CMOS output capable of sourcing/sinking ≥40 mA; swings within 40 mV of VCC+ and 30 mV of VCC− at light loads. |
| 4 | Positive Supply (VCC+) | Main power rail for both amplifiers; accepts 2.7–16 V; decoupling capacitor required near this pin for stability. |
| 5 | Negative Supply (VCC−) | Ground or negative rail; supports single-supply (0 V) or dual-supply (e.g., −5 V) operation; must be connected even in single-supply mode. |
| 6 | Non-Inverting Input (Amplifier B) | Independent high-impedance input for second channel; electrically isolated from Amplifier A except via shared supply rails. |
| 7 | Inverting Input (Amplifier B) | Second differential input node; identical electrical characteristics to Pin 1; enables dual-channel independent signal processing. |
| 8 | Output (Amplifier B) | Second rail-to-rail output; channel separation >120 dB at 1 kHz ensures minimal crosstalk between amplifiers in multi-channel designs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage systems (e.g., 3.3 V ADC front-ends), eliminating need for level-shifting circuitry. |
| Ultra-low input bias current (1 pA typ.) | Preserves signal integrity when interfacing with high-impedance sources such as piezoelectric sensors, ion-selective electrodes, or MEMS transducers. |
| Specified for 600 Ω load drive | Guarantees rail-to-rail output swing and stability into heavy loads-critical for driving analog multiplexers, DAC buffers, or legacy 600 Ω audio lines. |
| Latch-up immunity & 3 kV HBM ESD | Ensures robustness during board handling and system-level transient events without requiring external protection components. |
| Industrial temperature range (−40 °C to +125 °C) | Validates operation in automotive engine control units, industrial PLC analog I/O modules, and outdoor sensor nodes without derating. |
Applications
| Strain Gauge Signal Conditioning | Portable Medical Sensor Front-End |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from load cells or pressure sensors in handheld test equipment. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core-first op-amp configures as precision difference amplifier, second as low-pass filter and buffer. Use Value: 1 pA input bias current prevents bridge imbalance errors; rail-to-rail output ensures full-scale utilization of 12-bit SAR ADC with 3.3 V reference. |
Use Scenario: Biopotential acquisition (ECG, EMG) in battery-powered wearable monitors requiring low power and high input impedance. IC Role / Device Role / Timing Role: First-stage AC-coupled amplifier with high-pass filtering and second-stage gain/anti-aliasing filter before ADC sampling. Use Value: 200 μA per amplifier enables >100-hour battery life on coin cell; rail-to-rail I/O accommodates variable electrode offsets without clamping. |
| Industrial 4–20 mA Transmitter Interface | Automotive Cabin Temperature Sensing |
|
Use Scenario: Converting RTD or thermistor resistance changes into precise 4–20 mA loop current using voltage-to-current conversion circuitry. IC Role / Device Role / Timing Role: Precision current-sense amplifier (measuring shunt voltage) and loop driver output stage with rail-to-rail compliance. Use Value: 2 mV max Vos limits current error to <0.1% FS; 16 V max supply supports 24 V loop power with headroom for sensing resistors. |
Use Scenario: Linearizing and amplifying NTC thermistor voltage in HVAC control modules exposed to under-hood temperature extremes. IC Role / Device Role / Timing Role: Dual-op-amp configuration: one for thermistor voltage division/reference buffering, one for ratiometric gain and offset correction. Use Value: −40 °C to +125 °C rating ensures reliability in cabin air ducts; SO-8 package withstands reflow and thermal cycling per AEC-Q200. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Higher input bias current (10 nA typ.), lower GBW (1 MHz), no 600 Ω load guarantee. | Not suitable for >100 MΩ sensor interfaces; limited drive strength for low-impedance analog buses. | Select when cost sensitivity outweighs ultra-low bias current and heavy-load drive requirements. |
| TLV2462CDR | Lower input offset (1.6 mV max), higher supply current (550 μA/amp), narrower supply range (2.7–6 V). | Unusable above 6 V; unsuitable for 12 V industrial or automotive supply domains. | Prefer for ultra-low-offset, low-voltage (<5 V) portable applications where power budget allows. |
Compared with LMV358IDR and TLV2462CDR, TS912AID uniquely balances ultra-low input bias current, wide 2.7–16 V supply range, and guaranteed 600 Ω load drive-making it optimal for industrial sensor signal chains requiring both precision and robustness across diverse power domains.
Availability
TS912AID is available at Aetrix Electronics and suitable for industrial sensor conditioning, portable medical instrumentation, and automotive cabin environment monitoring requiring stable component supply across extended temperature and voltage ranges.
Supply support for TS912AID 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 TS912 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in resource-constrained, wide-supply industrial and automotive applications where low power, high accuracy, and ruggedness are mandatory.
FAQ
What is the maximum capacitive load the TS912AID can drive while remaining stable?
The TS912AID is characterized for stability with up to 100 pF capacitive load when driving 10 kΩ resistive loads, as verified in Figures 8 and 11 of the datasheet. Driving larger capacitive loads (>200 pF) requires isolation resistor (≥100 Ω) in series with the output to maintain phase margin above 30°, especially at higher supply voltages where GBP increases.
Does the TS912AID support true dual-supply operation with negative voltage on Pin 5?
Yes-Pin 5 (VCC−) accepts negative voltages down to −8 V when VCC+ is set to +8 V, enabling true dual-supply operation. The common-mode input range extends to VCC− − 0.2 V, and output swing reaches within 30 mV of VCC−, making it suitable for bipolar signal processing in audio and test equipment.
How does the input offset voltage drift behave over temperature?
The TS912AID exhibits a maximum input offset voltage drift of 5 μV/°C across −40 °C to +125 °C, as specified in Tables 3–5. This linear drift contributes ≤0.85 mV additional error over the full temperature range, which is critical for uncalibrated industrial temperature transmitters and long-duration data loggers.
Is the SO-8 package of TS912AID RoHS-compliant and halogen-free?
Yes-the TS912AID SO-8 package meets RoHS Directive 2011/65/EU and is halogen-free per STMicroelectronics' ECOPACK® specifications. Material declaration documents and certificate of compliance are available through ST's official quality portal and authorized distributors.
TS912AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.3V/µs
- Gain Bandwidth Product:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 5 mV
- Current - Supply:
- 230µA (x2 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TS912AID FAQ
1.How can I place an order for TS912AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TS912AID 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 TS912AID reliable?
The price and inventory of TS912AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS912AID is usually 5 days.
3.What payment methods are accepted for TS912AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS912AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS912AID?
TS912AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS912AID 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 TS912AID?
For technical support, including TS912AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS912AID requirements.
6.How does Aetrix verify that TS912AID is sourced from the original manufacturer or authorized distributors?
All TS912AID 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 TS912AID meets industry standards.
7.What is the process for return or replacement of TS912AID?
All TS912AID units undergo pre-shipment inspection (PSI). If there is an issue with TS912AID, 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 TS912AID part is unused and in its original packaging.
Return procedure for TS912AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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