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

STMicroelectronics TS914IYDT

Name: TS914IYDT
Brand: STMicroelectronics
SKU: TS914IYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS914IYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TS914IYDT.pdf

Description:: IC CMOS 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS914IYDT from STMicroelectronics is a rail-to-rail input/output CMOS quad operational amplifier qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C), operating from 2.7 V to 16 V single/dual supply, with 1 pA typical input bias current, 5 mV max input offset voltage (TS914A grade), and 200 μA/amplifier supply current at 3 V - used in automotive sensor signal conditioning and precision analog front-ends.

For engineers reviewing the TS914IYDT datasheet, TS914IYDT pinout, TS914IYDT application, or TS914IYDT equivalent, key selection criteria include rail-to-rail I/O swing under 600 Ω load, latch-up immunity, −40 °C to +125 °C automotive qualification, SO-14 package thermal resistance (R_thJA = 103 °C/W), and verified 120 dB channel separation at 1 kHz.

Technical Context

The TS914IYDT integrates four independent high-impedance CMOS op-amps sharing common supply rails, with input common-mode range extending 0.2 V beyond both V_CC+ and V_CC−, and output swing within 50 mV of either rail under 10 kΩ load. Its internal current-limiting circuit fixes source/sink capability at 40 mA per amplifier (at 3 V).

It features 30 nV/√Hz input voltage noise, 0.8 MHz gain-bandwidth product (at 3 V/10 kΩ), and 0.5 V/μs slew rate - optimized for low-power, wide-supply, high-precision DC-coupled amplification where input bias current must remain below 100 pA across temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 16 V single/dual supply - supports battery-powered and industrial 12 V systems without level-shifting.
Input Bias Current	1 pA typical - enables high-impedance sensor interfacing (e.g., pH electrodes, photodiodes) without significant DC error.
Input Offset Voltage	5 mV max (TS914A grade) - ensures <±10 mV total input-referred error in unity-gain buffer configurations over temperature.
Output Swing (RL = 10 kΩ)	V_CC− + 50 mV to V_CC+ − 50 mV - delivers full dynamic range in low-voltage ADC driver stages.
Supply Current per Amplifier	200 μA at V_CC = 3 V - allows four-channel operation at <1 mA total, critical for always-on automotive modules.
Channel Separation	120 dB at 1 kHz - prevents crosstalk between adjacent channels in multi-sensor signal chains (e.g., brake pressure + wheel speed).
Common-Mode Rejection	90 dB at V_CC = 10 V - maintains accuracy in noisy automotive ground environments with >100 mV common-mode transients.

Pinout & Package

TS914IYDT is housed in a 14-pin SOIC (SO-14) plastic micropackage with standard 1.27 mm pitch, 8.55–8.75 mm body length, and R_thJA = 103 °C/W - suitable for reflow soldering and automotive under-hood PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting Input (−)	High-impedance CMOS node accepting signals down to V_CC− − 0.2 V; requires guarding in ultra-low-current applications.
2, 6, 10, 13	Non-inverting Input (+)	Same rail-to-rail common-mode range as inverting inputs; matched input capacitance (1.5 pF) minimizes phase mismatch.
3, 7, 8, 14	Output	Capable of sourcing/sinking 40 mA (3 V); output swing limited to V_CC− + 350 mV / V_CC+ − 350 mV under 600 Ω load.
4	Positive Supply (V_CC+)	Accepts 2.7–16 V; decoupling capacitor required within 10 mm to maintain stability with capacitive loads.
11	Negative Supply (V_CC−)	Ground reference for single-supply use; must be connected even when V_CC− = 0 V to enable rail-to-rail input operation.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables direct interfacing with 0–3.3 V or 0–5 V ADCs and microcontroller I/O without external level-shifting circuitry.
1 pA typical input bias current	Reduces voltage error across high-value feedback networks (>10 MΩ), preserving gain accuracy in precision integrators.
Latch-up immunity	Guarantees robustness against transient overvoltage events on inputs or supplies in automotive 12 V systems.
AEC-Q100 Grade 1 qualification	Validated for continuous operation from −40 °C to +125 °C ambient, meeting requirements for engine control and transmission modules.
SPICE macromodel included	Enables accurate AC/DC/transient simulation of closed-loop behavior including phase margin degradation at 600 Ω loads.

Applications

Automotive Cabin Temperature Sensor

Industrial 4–20 mA Loop Receiver

Use Scenario: Amplifying thermistor voltage in HVAC control module with 5 V supply and 125 °C ambient.

IC Role / Device Role / Timing Role: Quad buffer and gain stage for four independent cabin zone sensors, rejecting common-mode noise from shared ground.

Use Value: Rail-to-rail output swing ensures full 0–5 V ADC utilization; 1 pA bias current prevents thermistor self-heating errors.

Use Scenario: Converting 4–20 mA loop current to 0.5–2.5 V for microcontroller ADC in factory automation PLC.

IC Role / Device Role / Timing Role: Precision I-to-V converter and level-shifter, operating from 12 V supply with 100 Ω load drive capability.

Use Value: 5 mV max V_io limits span error to <±0.1% FS; 120 dB channel separation isolates multiple loop receivers on same PCB.

Medical ECG Front-End

Automotive Battery Monitoring Unit

Use Scenario: Instrumentation amplifier first stage for dry-electrode ECG with ultra-high source impedance (>1 GΩ).

IC Role / Device Role / Timing Role: Low-noise, low-bias current buffer before programmable gain stage; operates from 3.3 V LDO.

Use Value: 1 pA I_ib avoids >1 mV DC offset from electrode polarization; 30 nV/√Hz noise preserves QRS complex fidelity.

Use Scenario: Simultaneous voltage monitoring of 12 V starter battery, 48 V mild-hybrid bus, and 3.3 V MCU supply in vehicle power domain.

IC Role / Device Role / Timing Role: Quad differential amplifier for isolated voltage sensing, rejecting common-mode ripple up to 2 V_pp.

Use Value: 90 dB CMRR at 10 V supply rejects alternator noise; 200 μA/amplifier enables always-on monitoring with <1 mA total quiescent current.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TS914IDT	Industrial grade (−40 °C to +125 °C), same electrical specs but no AEC-Q100 qualification or automotive traceability.	Lacks automotive qualification documentation and screening - unsuitable for OEM production in safety-critical domains.	Select only for non-automotive industrial or consumer designs requiring identical performance at lower cost.
LMV324QDRQ1	Lower supply current (180 μA/amplifier), wider GBW (1 MHz), but higher V_io (7 mV max) and no 600 Ω load spec.	Optimized for general-purpose automotive signal conditioning where ultra-low bias current is not required.	Prefer when GBW > 0.8 MHz is needed and input bias current >10 pA is acceptable; verify output swing under 600 Ω load.

Compared with TS914IDT, TS914IYDT adds AEC-Q100 qualification and automotive traceability without electrical trade-offs; versus LMV324QDRQ1, it trades 0.2 MHz GBW for guaranteed 1 pA bias current and 600 Ω load drive - critical for high-impedance sensor interfaces.

Availability

TS914IYDT is available at Aetrix Electronics and suitable for automotive cabin control, industrial loop receivers, medical biosignal acquisition, and battery monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS914IYDT 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 automotive, industrial, and consumer markets.

The TS914 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in harsh automotive and industrial environments where low input bias current and wide supply range are mandatory.

FAQ

What is the maximum capacitive load the TS914IYDT can drive stably?

The TS914IYDT is characterized for stability with 100 pF capacitive loads at unity gain (per Figure 8–13). Driving >100 pF requires series output resistance (≥100 Ω) or reduced closed-loop gain to maintain ≥30° phase margin. No internal compensation is provided for heavy capacitive loads.

Does TS914IYDT support dual-supply operation with asymmetric rails?

Yes - the TS914IYDT supports dual-supply operation with any combination where V_CC+ − V_CC− is 2.7–16 V and both rails remain within absolute maximum ratings (−0.3 V to +18 V referenced to ground). Common-mode input range extends 0.2 V beyond each rail regardless of asymmetry.

How does the 600 Ω load specification impact output voltage swing?

Under 600 Ω load, output swing degrades to V_CC− + 350 mV / V_CC+ − 350 mV (vs. ±50 mV at 10 kΩ), due to internal current limiting. This is explicitly tested and guaranteed - critical for driving low-impedance ADC references or LED drivers without external buffers.

Is the SPICE macromodel validated for all operating conditions?

No - the provided macromodel (Table 6) is validated only for V_CC = 3 V, T_amb = 25 °C, and RL/CL connected to V_CC/2. It does not replicate temperature drift, supply voltage scaling of GBP/SR, or large-signal output current limiting behavior outside nominal conditions.

TS914IYDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: CMOS

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 1V/µs

Gain Bandwidth Product:: 1.4 MHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 10 mV

Current - Supply:: 230µA

Current - Output / Channel:: 60 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:: 14-SO

TS914IYDT FAQ

1.How can I place an order for TS914IYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS914IYDT 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 TS914IYDT reliable?

The price and inventory of TS914IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS914IYDT is usually 5 days.

3.What payment methods are accepted for TS914IYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS914IYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS914IYDT?

TS914IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS914IYDT 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 TS914IYDT?

For technical support, including TS914IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS914IYDT requirements.

6.How does Aetrix verify that TS914IYDT is sourced from the original manufacturer or authorized distributors?

All TS914IYDT 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 TS914IYDT meets industry standards.

7.What is the process for return or replacement of TS914IYDT?

All TS914IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS914IYDT, 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 TS914IYDT part is unused and in its original packaging.

Return procedure for TS914IYDT:

1.Submit a request within 90 days.

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

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