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

STMicroelectronics TS914AID

Name: TS914AID
Brand: STMicroelectronics
SKU: TS914AID
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS914AID

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS914AID.pdf

Description:: IC CMOS 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS914AID from STMicroelectronics is a rail-to-rail input/output CMOS quad operational amplifier operating from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual supply), featuring 5 mV max input offset voltage (A-grade), 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 50 mV of rails (10 kΩ) or 350 mV (600 Ω), suited for precision sensor signal conditioning in industrial instrumentation.

For engineers reviewing the TS914AID datasheet, TS914AID pinout, TS914AID application, or TS914AID equivalent, key selection criteria include rail-to-rail I/O capability, ultra-low input bias current for high-impedance sources, guaranteed A-grade offset voltage, and SO-14 package compatibility with legacy analog layouts.

Technical Context

The TS914AID employs a CMOS input stage enabling rail-to-rail common-mode input range (V_CC− −0.2 V to V_CC+ +0.2 V) and achieves rail-to-rail output swing limited by internal current-limiting circuitry-sourcing/sinking up to 40 mA (3 V) or 60 mA (5–10 V). Its gain-bandwidth product scales with supply voltage (0.8 MHz at 3 V, 1.4 MHz at 10 V), and phase margin remains stable ≥30° across load conditions (10 kΩ/600 Ω).

Input protection includes latch-up immunity and ESD robustness (1 kV HBM, 1.5 kV CDM), while thermal design is supported by R_thJA = 103 °C/W and R_thJC = 31 °C/W. The device operates across −40 °C to +125 °C, with input offset drift of 5 μV/°C and >10 TΩ input resistance.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 16 V single supply - enables direct interfacing with 3.3 V, 5 V, and 12 V systems without level-shifting.
Input Offset Voltage (A-grade)	5 mV max over full temperature range - ensures ≤0.5% error in 1 V full-scale precision amplification.
Input Bias Current	1 pA typical - preserves signal integrity in photodiode, pH probe, or piezoelectric sensor front-ends.
Supply Current per Amplifier	200 μA at 3 V - supports low-power battery-operated instrumentation with four independent channels.
Output Drive Capability	40 mA sink/source at 3 V - directly drives LEDs, small relays, or ADC reference buffers without external transistors.
Gain-Bandwidth Product	1.4 MHz at 10 V - sufficient for anti-aliasing filters and active low-pass stages up to ~100 kHz.
Common-Mode Rejection Ratio	90 dB at 10 V - rejects noise in differential sensor bridges with <0.003% error contribution.

Pinout & Package

TS914AID is housed in a 14-pin SOIC (SO-14) plastic micropackage (ECOPACK® compliant), with 1.27 mm pitch, 8.55–8.75 mm body length, and 3.80–4.00 mm width. Pin 1 is marked by a notch or dot; top-view pin numbering follows standard SO-14 convention.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 12	Inverting Input (AMP1–AMP4)	High-impedance CMOS node accepting signals down to V_CC− −0.2 V; requires matched trace impedance for noise rejection.
2, 6, 10, 13	Non-inverting Input (AMP1–AMP4)	Same rail-to-rail common-mode range as inverting inputs; critical for unity-gain buffer stability.
3, 7, 11, 14	Output (AMP1–AMP4)	Rail-to-rail capable: swings to V_CC− +50 mV / V_CC+ −50 mV (10 kΩ), enabling full dynamic range utilization.
4	Positive Supply (V_CC+)	Accepts 2.7–16 V; decoupling capacitor (100 nF) required within 5 mm for stability under fast load transients.
15 (pin 5 on datasheet diagram)	Negative Supply (V_CC−)	Ground reference for single-supply operation; must be connected even when V_CC− = 0 V.

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full utilization of supply rails in single-supply systems, eliminating need for level-shifting in 3.3 V microcontroller interfaces.
Ultra-low input bias current (1 pA typ.)	Minimizes voltage error across high-value feedback resistors (>1 MΩ), preserving accuracy in charge-amplifier configurations.
A-grade input offset voltage (5 mV max)	Guarantees predictable DC error budget in multi-stage amplifiers without trimming components.
Latch-up immunity and 1 kV HBM ESD rating	Ensures robustness during PCB handling and field operation in industrial environments with transient coupling.
Specified performance at 600 Ω load	Validates drive capability into low-impedance ADC inputs, DAC buffers, or transmission line terminations without external drivers.

Applications

Industrial Sensor Signal Conditioning

Portable Medical Instrumentation

Use Scenario: Amplifying low-level outputs from strain gauges, thermopiles, or RTDs in factory-floor data loggers.

IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end with rail-to-rail I/O enabling direct connection to 12-bit SAR ADCs.

Use Value: 1 pA input bias current prevents loading of high-Z Wheatstone bridge sensors; 5 mV offset ensures <0.1% full-scale error at 5 V span.

Use Scenario: Biopotential signal acquisition in handheld ECG or pulse oximeter devices powered by coin-cell batteries.

IC Role / Device Role / Timing Role: Low-power, multi-stage signal conditioning (gain, filtering, level-shifting) before digitization.

Use Value: 200 μA per amplifier extends battery life beyond 100 hours; rail-to-rail output maximizes SNR into 3.3 V ADCs.

Automotive Cabin Environment Monitoring

Programmable Logic Controller (PLC) Analog I/O Modules

Use Scenario: Processing CO₂, humidity, and VOC sensor outputs in automotive HVAC control units.

IC Role / Device Role / Timing Role: Precision transimpedance and buffer stage for electrochemical gas sensors operating at 5 V.

Use Value: 90 dB CMRR rejects ignition noise; −40 °C to +125 °C rating meets AEC-Q100 Grade 2 requirements (via TS914AIYDT variant).

Use Scenario: Isolated analog input conditioning for 4–20 mA loop receivers and thermocouple linearization in industrial PLC backplanes.

IC Role / Device Role / Timing Role: High-impedance input buffer and programmable gain stage before isolation barrier.

Use Value: 600 Ω load specification validates direct driving of optocoupler LED anodes; 16 V max supply accommodates 24 V field-side rails.

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
TS914ID	Standard grade: 10 mV max input offset voltage vs. TS914AID's 5 mV; otherwise identical specs and pinout.	Suitable for non-critical gain stages where offset trimming is feasible or system calibration compensates error.	Select TS914ID when cost sensitivity outweighs need for guaranteed low-offset performance.
LM324DR	Bipolar input: 20 nA bias current vs. 1 pA; wider offset (7 mV typ.), no rail-to-rail input; 36 V max supply.	Preferred in high-voltage industrial controls where input common-mode range exceeds 16 V, but unsuitable for high-Z sensors.	Choose LM324DR only if supply >16 V is required and ultra-low input bias is not needed.

Compared with TS914ID, TS914AID delivers tighter offset control for precision DC-coupled chains; versus LM324DR, it enables high-impedance sensor interfacing and single-supply 3.3 V operation-but lacks bipolar supply flexibility above 16 V.

Availability

TS914AID is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, automotive cabin monitoring, and PLC analog I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS914AID 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 TS914 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in space-constrained, low-power industrial and medical instrumentation where input bias current and offset voltage critically impact measurement fidelity.

FAQ

What is the maximum capacitive load the TS914AID can drive without instability?

The TS914AID is characterized with 100 pF capacitive load in gain-bandwidth and slew rate tests, and its phase margin remains ≥30° at 10 kΩ and 600 Ω loads. Driving >100 pF directly may cause peaking or oscillation; use a series resistor (≥100 Ω) between output and capacitive load to maintain stability, especially in unity-gain configurations.

Does TS914AID support true dual-supply operation with negative voltage on VCC−?

Yes. TS914AID supports dual-supply operation with VCC− as low as −8 V (when VCC+ = +8 V), maintaining rail-to-rail input range from VCC− −0.2 V to VCC+ +0.2 V. Absolute maximum rating allows VCC− to −18 V, but specified operation is validated from −8 V to +8 V symmetric or asymmetric supplies.

How does the 600 Ω load specification impact practical circuit design?

The 600 Ω load test condition confirms TS914AID can deliver rail-to-rail output swing (VCC− +350 mV / VCC+ −350 mV) and 60 mA short-circuit current at 5–10 V, validating direct interface to low-impedance loads like ADC reference drivers, LED indicators, or optocoupler inputs without external buffers.

Is the Spice macromodel provided in the datasheet suitable for AC and transient analysis?

Yes-the included macromodel reproduces key AC parameters including 1.4 MHz GBP, 1 V/μs slew rate, and 30° phase margin at 10 V supply. However, it models nominal behavior only; for worst-case design validation, combine macromodel simulations with corner-case electrical characteristics from Tables 3–5 (e.g., min/max offset, current, and gain).

TS914AID Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tube

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:: 5 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

TS914AID FAQ

1.How can I place an order for TS914AID through Aetrix?

Please submit a Request for Quotation (RFQ) for TS914AID 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 TS914AID reliable?

The price and inventory of TS914AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS914AID is usually 5 days.

3.What payment methods are accepted for TS914AID?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS914AID transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS914AID?

TS914AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS914AID 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 TS914AID?

For technical support, including TS914AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS914AID requirements.

6.How does Aetrix verify that TS914AID is sourced from the original manufacturer or authorized distributors?

All TS914AID 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 TS914AID meets industry standards.

7.What is the process for return or replacement of TS914AID?

All TS914AID units undergo pre-shipment inspection (PSI). If there is an issue with TS914AID, 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 TS914AID part is unused and in its original packaging.

Return procedure for TS914AID:

1.Submit a request within 90 days.

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

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