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STMicroelectronics TS912IDT
- Part No.:
- TS912IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS912IDT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:32,552
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Product details
Overview
TS912IDT from STMicroelectronics is a rail-to-rail input/output CMOS dual operational amplifier operating from 2.7 V to 16 V single or dual supply, with 200 μA per amplifier supply current at 3 V, 2 mV max input offset voltage (TS912B grade), and 1 pA typical input bias current. It drives 600 Ω loads and delivers ±40 mA output current, used in precision sensor signal conditioning and low-power portable instrumentation.
For engineers reviewing the TS912IDT datasheet, TS912IDT pinout, TS912IDT application, or TS912IDT equivalent, key selection criteria include rail-to-rail I/O swing under light and heavy loads, ultra-low input bias current for high-impedance sources, supply voltage flexibility across battery-powered and industrial rails, and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The TS912IDT implements a CMOS input stage enabling rail-to-rail common-mode input range (VCC− −0.2 V to VCC+ +0.2 V) and output swing within 30–400 mV of either rail depending on load (10 kΩ vs. 600 Ω). Its internal current-limiting circuit fixes source/sink capability at ±40 mA at 3 V and ±65 mA at 5 V.
It features a gain-bandwidth product of 0.8 MHz at 3 V (RL = 10 kΩ), rising to 1.4 MHz at 10 V, with phase margin ≥30° across supply voltages and load conditions. Input noise is 30 nV/√Hz at 1 kHz, and channel separation reaches 120 dB at 1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V single/dual supply - supports coin-cell, Li-ion, and industrial 12 V rails without level-shifting. |
| Input Bias Current | 1 pA typ. - enables use with >1 GΩ source impedances (e.g., pH electrodes, photodiode transimpedance stages). |
| Input Offset Voltage | 2 mV max (TS912B grade) - ensures ≤2 mV error in unity-gain buffer or low-gain signal paths at room temperature. |
| Output Drive Capability | ±40 mA at 3 V, ±65 mA at 5 V - sufficient to directly drive LEDs, small relays, or 600 Ω transmission lines. |
| Rail-to-Rail Output Swing | VCC− +30 mV / VCC+ −40 mV (RL = 10 kΩ); VCC− +300 mV / VCC+ −400 mV (RL = 600 Ω) - preserves dynamic range near supply limits. |
| Gain-Bandwidth Product | 0.8 MHz (3 V), 1.4 MHz (10 V) - suitable for DC–100 kHz signal conditioning with stable unity-gain stability. |
| Common-Mode Rejection | 70 dB min (3 V), 90 dB max (10 V) - rejects power-supply ripple and shared-noise coupling in mixed-signal systems. |
Pinout & Package
TS912IDT is supplied in an SO-8 (Small Outline, 8-lead) plastic micropackage, 4.9 mm × 6.0 mm body, 1.27 mm lead pitch, RoHS-compliant and ECOPACK® certified.
| 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 operation. |
| 2 | Non-Inverting Input (Amplifier A) | High-impedance CMOS node; forms feedback reference point for A-channel; supports rail-to-rail common-mode range. |
| 3 | Output (Amplifier A) | Class-AB output stage capable of sourcing/sinking up to ±65 mA; rail-to-rail swing limited by load impedance. |
| 4 | VCC+ | Positive supply terminal; accepts 2.7–16 V; decoupling capacitor required near pin for stability under dynamic load. |
| 5 | VCC− | Negative supply or ground reference; must be connected even in single-supply mode; defines lower rail for rail-to-rail operation. |
| 6 | Inverting Input (Amplifier B) | Independent high-Z CMOS input for second channel; electrically isolated from Channel A except via shared supply pins. |
| 7 | Non-Inverting Input (Amplifier B) | Second independent CMOS input; identical electrical specs to Pin 2; enables dual-channel signal processing in one footprint. |
| 8 | Output (Amplifier B) | Second rail-to-rail output; shares thermal and supply coupling with Channel A but operates independently in normal use. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full supply-voltage utilization in single-supply systems (e.g., 3.3 V microcontroller ADC front-end) without level-shifting circuitry. |
| Ultra-low input bias current (1 pA typ.) | Minimizes voltage error across high-value feedback resistors (>1 MΩ) and preserves signal integrity from capacitive or electrochemical sensors. |
| Specified for 600 Ω load drive | Guarantees rail-to-rail output swing and stability when interfacing directly to legacy analog lines, audio codecs, or low-impedance transducers. |
| Latch-up immunity and 3 kV HBM ESD | Ensures robustness during board handling and system integration in industrial environments without external protection components. |
| SPICE macromodel included | Enables accurate AC/DC/transient simulation of closed-loop behavior-including load-dependent slew rate and GBW variation-prior to prototyping. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying weak signals from thermistors, RTDs, or strain gauges in handheld diagnostic devices powered by single 3.3 V Li-ion cells. IC Role / Device Role / Timing Role: Dual-channel precision buffer and gain stage; Channel A conditions sensor bridge output, Channel B buffers reference voltage. Use Value: Rail-to-rail I/O preserves full 0–3.3 V ADC input range; 1 pA input bias prevents thermistor self-heating errors; 200 μA/channel enables >100-hour battery life. | Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in factory automation, where supply headroom is limited to 12 V. IC Role / Device Role / Timing Role: Dual op-amp performing I/V conversion and output buffering; one channel converts loop current to voltage, the other drives the output stage. Use Value: 2.7–16 V operation accommodates varying loop drop; 600 Ω load spec ensures compatibility with PLC input cards; latch-up immunity withstands field wiring transients. |
| Low-Power Data Acquisition | Automotive Cabin Sensors |
Use Scenario: Front-end amplification for multi-channel 12-bit SAR ADCs in battery-operated environmental loggers measuring temperature, humidity, and CO₂. IC Role / Device Role / Timing Role: Dual-channel programmable-gain amplifier (PGA) core; configured as unity-gain buffer and non-inverting amplifier with digitally switched feedback networks. Use Value: 2 mV max Vos (TS912B) limits offset-induced quantization error; 30 nV/√Hz input noise maintains SNR >70 dB at 1 kHz; SO-8 footprint simplifies layout routing. | Use Scenario: Signal conditioning for cabin air quality sensors (e.g., VOC detectors) in automotive infotainment modules with 5 V supply and strict EMC requirements. IC Role / Device Role / Timing Role: Dual op-amp providing sensor biasing, amplification, and EMI filtering; one channel biases electrochemical cell, the other amplifies response current. Use Value: 3 kV HBM ESD rating meets ISO 10605; rail-to-rail output interfaces directly to 5 V ADC; low supply current reduces thermal load in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail CMOS op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS912AIDT | Higher input offset voltage (5 mV max) and bias current (150 pA typ.) than TS912IDT (2 mV/1 pA). | Suitable for cost-sensitive industrial controls where <5 mV offset is acceptable. | Select TS912AIDT only if tighter offset and lower bias current are not required for signal fidelity. |
| MCP6022-E/SN | Lower quiescent current (100 μA/amp), higher GBW (10 MHz), but narrower supply range (2.7–6 V) and no 600 Ω load guarantee. | Better for high-speed, low-voltage portable designs; unsuitable for 12 V industrial rails or heavy-load driving. | Choose MCP6022-E/SN only when speed >1 MHz and supply ≤6 V are primary constraints; avoid for 12 V or 600 Ω applications. |
Compared with TS912AIDT, TS912IDT offers superior DC precision and input impedance for sensor front-ends; compared with MCP6022-E/SN, it trades bandwidth for wider supply range and guaranteed 600 Ω drive-making it optimal for mixed-rail, low-noise, moderate-speed industrial signal chains.
Availability
TS912IDT is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and low-power data acquisition requiring stable component supply across extended temperature ranges (−40 °C to +125 °C) and long-lifecycle programs.
Supply support for TS912IDT 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 TS912 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in low-power, wide-supply industrial and portable instrumentation applications where input bias current and output drive are critical.
FAQ
What is the maximum load capacitance the TS912IDT can drive stably in unity-gain configuration?
Per the datasheet, the TS912IDT remains stable with up to 100 pF capacitive load when driving a 10 kΩ resistor in unity-gain buffer configuration. For larger capacitive loads or direct capacitive loading without series resistance, external compensation (e.g., isolation resistor) is required to maintain phase margin ≥30° and prevent oscillation.
Does the TS912IDT support true dual-supply operation with negative voltage on VCC−?
Yes. The TS912IDT supports true dual-supply operation with VCC− as low as −16 V relative to VCC+, provided the absolute maximum ratings are observed (VCC total ≤18 V, Vid ≤±18 V). The rail-to-rail input stage accepts common-mode voltages down to VCC− −0.2 V, enabling symmetric ±5 V or ±7.5 V operation.
How does the output short-circuit current limit behave under varying supply voltages?
The internal current-limit circuit fixes output source/sink capability at ±40 mA at 3 V, ±65 mA at 5 V, and ±75 mA at 10 V. This scaling reflects increased drive strength with higher supply, but the limit remains active and symmetrical-preventing thermal runaway during sustained short-circuit events across the full 2.7–16 V range.
Is the TS912IDT qualified for automotive applications?
No. TS912IDT is an industrial-grade part rated for −40 °C to +125 °C, but it is not AEC-Q100 qualified. For automotive use, ST offers the pin-compatible TS912IYDT variant (marked "912IY"), which undergoes additional screening and qualification per AEC-Q100 Grade 2 requirements.
TS912IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 10 mV
- Current - Supply:
- 400µA (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
TS912IDT FAQ
1.How can I place an order for TS912IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS912IDT 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 TS912IDT reliable?
The price and inventory of TS912IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS912IDT is usually 5 days.
3.What payment methods are accepted for TS912IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS912IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS912IDT?
TS912IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS912IDT 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 TS912IDT?
For technical support, including TS912IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS912IDT requirements.
6.How does Aetrix verify that TS912IDT is sourced from the original manufacturer or authorized distributors?
All TS912IDT 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 TS912IDT meets industry standards.
7.What is the process for return or replacement of TS912IDT?
All TS912IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS912IDT, 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 TS912IDT part is unused and in its original packaging.
Return procedure for TS912IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS912IDT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM2902DR
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LM358P
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