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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TS912IYDT

Name: TS912IYDT
Brand: STMicroelectronics
SKU: TS912IYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS912IYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TS912IYDT.pdf

Description:: IC CMOS 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS912IYDT from STMicroelectronics is a rail-to-rail input/output CMOS dual operational amplifier designed for precision signal conditioning in single- or dual-supply systems. It operates from 2.7 V to 16 V, delivers 200 μA/amplifier supply current at 3 V, features 1 pA typical input bias current, and supports rail-to-rail output swing within 30–400 mV of rails depending on load-enabling accurate low-voltage sensor interfacing in automotive body control modules.

For engineers reviewing the TS912IYDT datasheet, TS912IYDT pinout, TS912IYDT application, or TS912IYDT equivalent, key selection criteria include its 2 mV max input offset voltage (TS912B grade), 0.8–1.4 MHz gain-bandwidth product across 3–10 V supply, rail-to-rail common-mode input range (VCC−–0.2 V to VCC+ +0.2 V), and AEC-Q100 qualified SO-8 automotive-grade packaging.

Technical Context

The TS912IYDT implements a two-stage CMOS input stage with complementary differential pairs, enabling rail-to-rail common-mode input operation down to VCC− and up to VCC+. Its output stage uses class-AB push-pull architecture with internal current limiting, delivering ±40 mA sink/source capability at 3 V and maintaining phase margin ≥30° across 10 kΩ and 600 Ω loads.

It integrates ESD protection rated at 3 kV HBM and latch-up immunity per JESD78, with specified performance over −40 °C to +125 °C ambient temperature. The device includes SPICE macromodel support and is characterized for both 100 Ω and 600 Ω load conditions-critical for driving low-impedance analog front-ends in automotive sensors and industrial transmitters.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 16 V - enables direct interface with 3.3 V, 5 V, and 12 V automotive power domains without level-shifting.
Input Offset Voltage (max)	2 mV (TS912B grade) - ensures ≤0.2% error in 1 V full-scale sensor signal amplification at room temperature.
Input Bias Current (typ)	1 pA - minimizes voltage error across high-impedance sources like piezoelectric sensors or pH electrodes.
Gain-Bandwidth Product	0.8 MHz (3 V), 1.4 MHz (10 V) - supports stable unity-gain buffering of DC–100 kHz signals in active filters and sensor conditioning.
Output Voltage Swing	VCC− +30 mV / VCC+ −40 mV (RL = 10 kΩ); VCC− +300 mV / VCC+ −400 mV (RL = 600 Ω) - preserves dynamic range in low-voltage ADC driver applications.
Common-Mode Rejection Ratio	70 dB (3 V), 90 dB (10 V) - rejects noise coupled onto sensor cables in noisy automotive harness environments.
Supply Current per Amplifier	200 μA at 3 V - allows dual-channel amplification in battery-powered ECUs with <500 μA total quiescent budget.

Pinout & Package

TS912IYDT is supplied in an automotive-grade SO-8 package (ECOPACK® compliant, 4.9 mm × 6.0 mm footprint, 1.27 mm pitch), optimized for reflow soldering and thermal reliability in under-hood applications.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN−)	Inverting input of Channel A	Accepts feedback network connection for precise closed-loop gain setting in instrumentation amplifier configurations.
2 (IN+)	Non-inverting input of Channel A	Interfaces directly with high-impedance sensor outputs (e.g., thermistor bridges) without loading error.
3 (OUT)	Output of Channel A	Drives ADC inputs or low-impedance loads up to 600 Ω while maintaining rail-to-rail swing and stability.
4 (VCC+)	Positive supply rail	Accepts 2.7–16 V single supply or positive rail of dual supply; decoupling capacitor required for PSRR optimization.
5 (VCC−)	Negative supply rail / Ground	Serves as reference node for single-supply operation or negative rail in dual-supply mode; must be low-impedance.
6 (IN−)	Inverting input of Channel B	Enables dual-channel signal processing (e.g., differential pair + reference buffer) on one die with matched characteristics.
7 (IN+)	Non-inverting input of Channel B	Provides independent high-Z input for secondary sensor channel or reference voltage follower.
8 (OUT)	Output of Channel B	Delivers second amplified signal with same rail-to-rail performance and 120 dB channel separation at 1 kHz.

Key Features

Feature	Design Value
Rail-to-rail input and output	Common-mode input extends to both supply rails; output swings within 30 mV of rails at light load - maximizes usable signal range in 3.3 V systems.
AEC-Q100 qualified	Qualified per Grade 1 (−40 °C to +125 °C) - certified for use in automotive body electronics, HVAC controls, and lighting modules.
Ultra-low input bias current	1 pA typical - eliminates significant offset drift in high-source-impedance circuits (e.g., >10 MΩ sensor interfaces).
Latch-up immunity	Immune to destructive latch-up per JESD78 Class II - ensures robustness during power sequencing or transient overvoltage events.
SPICE macromodel included	Verified behavioral model provided - enables accurate AC/DC/transient simulation of closed-loop performance before prototyping.

Applications

Automotive Cabin Temperature Sensor Interface

Industrial 4–20 mA Transmitter Input Stage

Use Scenario: Amplifying output of NTC thermistor bridge in vehicle cabin air quality module, operating from 5 V supply with 12-bit SAR ADC.

IC Role / Device Role / Timing Role: Dual op-amp configured as precision non-inverting amplifier (Ch A) and reference buffer (Ch B) for ratiometric measurement.

Use Value: 2 mV max Vio and 1 pA Iib ensure <0.1°C measurement error across −40 °C to +85 °C; rail-to-rail output drives ADC input fully to 0–5 V range.

Use Scenario: Conditioning low-level voltage from 2-wire pressure sensor in factory automation transmitter, powered from loop supply.

IC Role / Device Role / Timing Role: First-stage signal amplifier with programmable gain, followed by rail-to-rail output stage driving DAC reference.

Use Value: 200 μA/amplifier supply current enables dual-channel operation within 1 mA loop budget; 600 Ω load drive supports direct interface to current-sense resistor networks.

Medical Patient Monitoring Lead-off Detection

Smart Building CO₂ Sensor Signal Chain

Use Scenario: Detecting electrode disconnection in ECG front-end by monitoring bias current imbalance across differential inputs.

IC Role / Device Role / Timing Role: High-impedance buffer for lead-off comparator input, leveraging ultra-low Iib to minimize false triggers.

Use Value: 1 pA Iib ensures detection threshold remains stable over time and temperature; 120 dB channel separation prevents crosstalk between dual-lead monitoring paths.

Use Scenario: Amplifying weak NDIR detector signal in battery-operated indoor air quality sensor, requiring low power and high DC accuracy.

IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low-noise (30 nV/√Hz) and low-drift (5 μV/°C) performance.

Use Value: 2 mV max Vio and 5 μV/°C drift enable sub-10 ppm CO₂ resolution over 0–50 °C ambient; 200 μA quiescent current extends battery life beyond 2 years.

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
TS912IDT	Same silicon, standard industrial grade (−40 °C to +125 °C), SO-8 package, no AEC-Q100 qualification.	Not suitable for automotive production; acceptable for industrial prototypes or non-safety-critical consumer devices.	Select when AEC-Q100 compliance is not required and cost sensitivity outweighs automotive qualification needs.
MCP6022-E/SN	Higher GBW (10 MHz), higher supply current (1 mA/amplifier), 2.7 V min supply - lacks 16 V max rating and AEC-Q100 grade.	Better for high-speed filtering but unsuitable for 12 V automotive supply or low-power battery operation.	Choose only if bandwidth >1 MHz is mandatory and automotive qualification is unnecessary.

Compared with TS912IDT, TS912IYDT adds AEC-Q100 qualification and enhanced ESD robustness (3 kV HBM), making it mandatory for automotive production; versus MCP6022-E/SN, it trades bandwidth for 5× lower supply current and extended 16 V supply tolerance-critical for unregulated vehicle battery interfaces.

Availability

TS912IYDT is available at Aetrix Electronics and suitable for automotive body electronics, industrial 4–20 mA transmitters, and medical patient monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS912IYDT 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 microcontrollers, analog ICs, power management devices, and MEMS sensors for automotive, industrial, and consumer markets.

The TS912 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail signal conditioning in resource-constrained, high-reliability applications including automotive cabin control, industrial process sensing, and portable medical instrumentation.

FAQ

What is the maximum operating junction temperature for TS912IYDT?

The absolute maximum junction temperature is 150 °C, with thermal resistance junction-to-ambient (R_thJA) of 125 °C/W for the SO-8 package. Under continuous 3 V operation with 200 μA per amplifier, power dissipation remains below 1.2 mW per channel, ensuring safe operation even at +125 °C ambient when PCB copper area meets minimum layout guidelines.

Does TS912IYDT support true single-supply operation with input signals near ground?

Yes - its common-mode input voltage range extends to V_CC− −0.2 V, allowing direct interface with 0 V referenced sensors (e.g., thermocouples, resistive bridges) when V_CC− is grounded. This eliminates need for level-shifting circuitry in single-supply 3.3 V or 5 V systems.

How does the output short-circuit protection behave under fault conditions?

The device incorporates internal current limiting that caps output source/sink current at approximately 40–75 mA depending on supply voltage (40 mA at 3 V, 75 mA at 10 V). During sustained short-circuit, junction temperature rises gradually; thermal shutdown is not integrated, so external current limiting or watchdog circuitry is recommended for continuous fault scenarios.

Can TS912IYDT drive a 100 Ω load while maintaining rail-to-rail output swing?

No - at 100 Ω load, output swing degrades significantly: VOL reaches up to 900 mV and VOH drops to ~2.8 V at 3 V supply. The datasheet specifies rail-to-rail performance only for ≥600 Ω loads; for 100 Ω, design margins require verifying actual swing using Figures 3–7 and derating output current per Figure 6/7 curves.

TS912IYDT 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

TS912IYDT FAQ

1.How can I place an order for TS912IYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS912IYDT 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 TS912IYDT reliable?

The price and inventory of TS912IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS912IYDT is usually 5 days.

3.What payment methods are accepted for TS912IYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS912IYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS912IYDT?

TS912IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS912IYDT 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 TS912IYDT?

For technical support, including TS912IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS912IYDT requirements.

6.How does Aetrix verify that TS912IYDT is sourced from the original manufacturer or authorized distributors?

All TS912IYDT 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 TS912IYDT meets industry standards.

7.What is the process for return or replacement of TS912IYDT?

All TS912IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS912IYDT, 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 TS912IYDT part is unused and in its original packaging.

Return procedure for TS912IYDT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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