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

STMicroelectronics TS274AIDT

Name: TS274AIDT
Brand: STMicroelectronics
SKU: TS274AIDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS274AIDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS274AIDT.pdf

Description:: IC CMOS 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:1,852

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Product details

Overview

TS274AIDT from STMicroelectronics is a high-performance CMOS quad operational amplifier designed for single- or dual-supply operation, featuring 3.5 MHz gain bandwidth product, 1 mA/amp supply current, rail-to-ground output swing, and 65–80 dB common-mode rejection. It operates across 3–16 V supply range and supports industrial temperature range (−40°C to +125°C) in SO-14 package.

For engineers reviewing the TS274AIDT datasheet, TS274AIDT pinout, TS274AIDT application, or TS274AIDT equivalent, key selection criteria include input offset voltage (≤10 mV), low input bias current (≤300 pA), phase margin stability on capacitive loads, and compatibility with low-power analog signal conditioning in sensor interfaces and industrial control systems.

Technical Context

The TS274AIDT implements a multi-stage CMOS amplifier architecture with dedicated input differential pair, second-stage gain block, and buffered output stage. Its design enables unity-gain stability without external compensation while maintaining ≥40° phase margin even with 100 pF capacitive load.

It features rail-to-ground output capability (VOL ≤ 50 mV at I_L = 0), common-mode input range from 0 V to V_CC − 1.5 V, and low-noise performance (30 nV/√Hz at 1 kHz), making it suitable for precision DC-coupled amplification where ground-referenced signals must be preserved.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	3.5 MHz - sets maximum usable closed-loop bandwidth at gain = 10 (350 kHz) with stable phase margin
Input Offset Voltage	≤10 mV (max, TA = 25°C) - limits DC error in precision amplification chains
Supply Current per Amp	1000–1700 µA - defines total quiescent power draw (4–6.8 mA for full quad) in battery-sensitive designs
Common-Mode Rejection	65–80 dB - ensures robustness against supply noise and shared reference disturbances
Output Voltage Swing	0 V to V_CC − 1.5 V - enables true ground-referenced output in single-supply configurations
Slew Rate	5.5 V/µs - supports 100 kHz full-power sine wave at ~1 V_PP without distortion
Input Bias Current	≤300 pA (max, TA = 125°C) - minimizes voltage error across high-impedance sensor sources

Pinout & Package

TS274AIDT is supplied in SO-14 (Small Outline, 14-pin) plastic micropackage, 3.9 mm × 8.75 mm body, 1.27 mm pitch, with exposed pad not present. RoHS-compliant, ECOPACK® certified, lead-free second-level interconnect.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (Amp 1)	Differential node for first op-amp; high-impedance CMOS input (Z_in > 10¹² Ω)
2	Non-inverting Input (Amp 1)	Reference input for Amp 1; accepts common-mode voltages from 0 V to V_CC − 1.5 V
3	Output (Amp 1)	Class-AB buffered output capable of sourcing/sinking ±45 mA, swinging to ground
4	V_CC− / GND	Negative supply or ground reference; required for single-supply operation
5	Inverting Input (Amp 2)	Second amplifier's inverting node; electrically isolated from other channels (120 dB separation)
6	Non-inverting Input (Amp 2)	Independent reference input for Amp 2; same CMR and input specs as Pin 2
7	Output (Amp 2)	Individually buffered output; no internal cross-talk with other outputs
8	V_CC+	Positive supply rail (3–16 V); powers all four amplifiers and internal bias circuitry
9	Inverting Input (Amp 3)	Third amplifier input; identical electrical characteristics to Pins 1 and 5
10	Non-inverting Input (Amp 3)	Third amp non-inverting input; shares same input offset drift (2 µV/°C)
11	Output (Amp 3)	Third independent output; supports same load drive and swing as Pins 3 and 7
12	Inverting Input (Amp 4)	Fourth amplifier inverting input; fully decoupled from others in layout and schematic
13	Non-inverting Input (Amp 4)	Final input channel; validated for operation up to 125°C ambient
14	Output (Amp 4)	Quad output; maintains 5.5 V/µs slew rate and 3.5 MHz GBP under full thermal stress

Key Features

Feature	Design Value
Rail-to-ground output swing	Enables direct interfacing with ADCs and logic that require 0 V low-level threshold without level-shifting circuitry
Unity-gain stable architecture	Eliminates need for external compensation components in follower, integrator, or filter applications
Low input bias current (≤300 pA)	Preserves signal integrity when amplifying from high-impedance sources such as piezoelectric sensors or pH electrodes
Stable phase margin on capacitive loads	Maintains ≥40° margin with up to 100 pF load, enabling direct driving of long traces or LCD bias networks
Four independent amplifiers in one package	Reduces PCB area and BOM count in multi-channel signal conditioning (e.g., 4-sensor front-end)

Applications

Industrial Sensor Signal Conditioning

Multi-Channel Data Acquisition Front-End

Use Scenario: Amplifying low-level mV-range outputs from RTDs, thermocouples, or strain gauges in PLC analog input modules.

IC Role / Device Role / Timing Role: Quad op-amp configured as precision instrumentation amplifier stages (2 amps), buffer (1 amp), and reference driver (1 amp).

Use Value: 300 pA max input bias current prevents significant voltage drop across 100 kΩ sensor bridge arms; 10 mV max V_io limits initial calibration offset.

Use Scenario: Simultaneous acquisition of four analog sensor channels feeding a 12-bit SAR ADC in environmental monitoring equipment.

IC Role / Device Role / Timing Role: Four independent unity-gain buffers isolating each sensor path prior to multiplexed ADC sampling.

Use Value: 120 dB channel separation prevents crosstalk-induced measurement errors; rail-to-ground output ensures full ADC dynamic range utilization.

Single-Supply Active Filters

Industrial Process Controller Analog I/O

Use Scenario: Implementing 4th-order low-pass filters for anti-aliasing before digitization in motor current sensing circuits.

IC Role / Device Role / Timing Role: Quad op-amp used in two 2-pole Sallen-Key topologies (one per channel), powered from 12 V single rail.

Use Value: Unity-gain stability and 3.5 MHz GBP support filter cutoffs up to 100 kHz; phase margin ≥40° ensures monotonic step response.

Use Scenario: Generating and conditioning 4–20 mA loop transmitter outputs and receiving 0–10 V analog inputs in distributed control systems.

IC Role / Device Role / Timing Role: Two amps for current-loop V-I conversion, one for input scaling/buffering, one for reference buffering.

Use Value: Output swing to ground allows accurate 4 mA zero-current setting; 1 mA/amp ICC enables thermal management in sealed enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TSV914IDT	Rail-to-rail I/O, lower V_io (1.5 mV max), higher GBP (8 MHz), lower supply range (2.5–5.5 V)	Better suited for low-voltage, high-precision applications (e.g., portable medical devices); not rated for >5.5 V operation	Select when V_CC ≤ 5.5 V and sub-mV offset is critical; avoid if 12 V or 16 V supplies are used.
LM324DT	Bipolar input, higher I_ib (30 nA), lower GBP (1.2 MHz), wider V_CC range (3–32 V), no rail-to-ground output	Compatible with higher supply voltages and legacy designs; unsuitable for high-Z sensor interfaces due to input current	Choose for cost-sensitive industrial controls with V_CC > 16 V or where input bias current is not limiting.

Compared with TSV914IDT, TS274AIDT offers higher supply voltage tolerance and better thermal stability for industrial environments but sacrifices rail-to-rail input and precision offset. Versus LM324DT, it delivers superior input impedance and ground-swing capability at the cost of higher unit price and narrower voltage headroom for rail-to-rail output.

Availability

TS274AIDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, multi-channel data acquisition systems, single-supply active filters, and analog I/O modules requiring stable component supply across extended temperature ranges.

Supply support for TS274AIDT 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for automotive, industrial, and consumer markets.

The TS274 belongs to ST's legacy high-performance CMOS op-amp family, engineered for low-power, wide-supply analog signal conditioning in industrial automation and instrumentation where reliability across −40°C to +125°C is mandatory.

FAQ

Is TS274AIDT pin-compatible with other TS27x variants like TS27L4 or TS27M4?

Yes - all TS27x quad op-amps (TS27L4, TS27M4, TS274) share identical SO-14, DIP14, and TSSOP14 pinouts and footprint. Electrical differences (e.g., supply current: 10 µA vs. 150 µA vs. 1 mA) do not affect physical or logical pin mapping, enabling drop-in replacement where power budget permits.

Does TS274AIDT support true rail-to-rail input operation?

No - TS274AIDT features rail-to-ground output swing but has a limited common-mode input range of 0 V to V_CC − 1.5 V. It cannot accept input signals within 1.5 V of the positive rail. For full rail-to-rail input, consider ST's TSV914 or TSV994 families instead.

What is the maximum capacitive load the TS274AIDT can drive while maintaining stability?

TS274AIDT maintains ≥40° phase margin with up to 100 pF capacitive load at unity gain, per Figure 10 in the datasheet. Driving larger loads requires external isolation resistor (≥100 Ω) in series with the output to preserve stability without degrading bandwidth significantly.

Can TS274AIDT operate from a 3 V single supply with meaningful output swing?

Yes - at V_CC = 3 V, TS274AIDT delivers output swing from 0 V to ≥1.5 V (V_CC − 1.5 V), sufficient for interfacing with 3 V logic or low-voltage ADC references. However, GBP drops to ~2.5 MHz and slew rate reduces to ~3.5 V/µs, as shown in Figures 11 and 12.

TS274AIDT 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:: -

Slew Rate:: 5.5V/µs

Gain Bandwidth Product:: 3.5 MHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 900 µV

Current - Supply:: 1mA

Current - Output / Channel:: 45 mA

Voltage - Supply Span (Min):: 3 V

Voltage - Supply Span (Max):: 16 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

TS274AIDT FAQ

1.How can I place an order for TS274AIDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS274AIDT 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 TS274AIDT reliable?

The price and inventory of TS274AIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS274AIDT is usually 5 days.

3.What payment methods are accepted for TS274AIDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS274AIDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS274AIDT?

TS274AIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS274AIDT 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 TS274AIDT?

For technical support, including TS274AIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS274AIDT requirements.

6.How does Aetrix verify that TS274AIDT is sourced from the original manufacturer or authorized distributors?

All TS274AIDT 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 TS274AIDT meets industry standards.

7.What is the process for return or replacement of TS274AIDT?

All TS274AIDT units undergo pre-shipment inspection (PSI). If there is an issue with TS274AIDT, 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 TS274AIDT part is unused and in its original packaging.

Return procedure for TS274AIDT:

1.Submit a request within 90 days.

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

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