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

STMicroelectronics TS274AIPT

Name: TS274AIPT
Brand: STMicroelectronics
SKU: TS274AIPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS274AIPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: TS274AIPT.pdf

Description:: IC CMOS 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS274AIPT from STMicroelectronics is a high-performance CMOS quad operational amplifier designed for single- or dual-supply operation, featuring 3.5 MHz gain bandwidth product, rail-to-ground output swing, unity-gain stability, and 1 mA/amp supply current. It operates across -40°C to +125°C and is housed in a TSSOP-14 package, commonly used in precision sensor signal conditioning and low-power industrial analog front-ends.

For engineers reviewing the TS274AIPT datasheet, TS274AIPT pinout, TS274AIPT application, or TS274AIPT equivalent, key selection criteria include input offset voltage (≤10 mV), phase margin on capacitive loads (≥40°), common-mode rejection ratio (≥65 dB), and thermal resistance (100 °C/W) - all critical for stable, low-drift multi-channel amplification in temperature-varying environments.

Technical Context

The TS274AIPT implements a silicon-gate CMOS input stage delivering ultra-low input bias current (≤300 pA at max temp) and minimal drift with temperature. Its internal architecture includes a two-stage transconductance amplifier with dominant-pole compensation, enabling unity-gain stability without external components while maintaining ≥40° phase margin even with 100 pF capacitive loads.

It supports rail-to-ground output swing (VOL ≤ 50 mV at I_L = 0) but not rail-to-rail input - common-mode range extends from ground to V_CC – 1.5 V. The device is specified for 3–16 V supply operation and exhibits 5.5 V/µs slew rate and 120 dB channel separation, making it suitable for isolated multi-amplifier functions within compact PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	3.5 MHz - sets maximum closed-loop bandwidth at unity gain; enables stable AC-coupled filtering up to ~300 kHz at gain=10
Input Offset Voltage	≤10 mV (max, TS274I) - determines DC error floor in precision gain stages; requires <100 µV trimming for sub-0.1% accuracy
Supply Current per Amp	1000–1700 µA - defines total quiescent power (e.g., 6.8 mW at 10 V, 4 amps); balances speed vs. battery life in portable systems
Phase Margin	≥40° - ensures stable step response with ≤30% overshoot into 100 pF loads; eliminates need for external compensation
Common-Mode Rejection	≥65 dB - suppresses noise coupled equally to both inputs (e.g., EMI on sensor cables); critical for differential measurement integrity
Output Voltage Swing	VOL ≤ 50 mV, VOH ≥ 8.2 V (at V_CC = 10 V) - delivers near-ground-level logic-compatible low state and >80% rail high state for interfacing with ADC references
Slew Rate	5.5 V/µs - limits full-scale settling time to ~1.8 µs for 10 V output steps; sufficient for audio-band and slow control loops

Pinout & Package

TSSOP-14 (Thin Shrink Small Outline Package), 4.9–5.1 mm × 6.2–6.6 mm × 1.05 mm height, lead-free ECOPACK® compliant, thermal resistance R_thJA = 100 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (Amp 1)	High-impedance node (Z_in > 10¹² Ω); connects to feedback network in inverting configurations
2	Non-inverting Input (Amp 1)	Accepts reference or sensor signal; common-mode range limited to 0 V to V_CC – 1.5 V
3	Output (Amp 1)	Capable of sourcing 45 mA / sinking 60 mA; rail-to-ground swing enables direct interface with 0–5 V ADCs
4	V_CC+	Positive supply rail (3–16 V); decoupling capacitor required within 5 mm for stability
5	V_CC–	Ground or negative rail; serves as reference for all inputs/outputs; must be low-impedance
6	Inverting Input (Amp 2)	Electrically isolated from Amp 1; crosstalk < –120 dB allows independent channel use
7	Non-inverting Input (Amp 2)	Matches Pin 2 characteristics; identical input bias current and offset specs
8	Output (Amp 2)	Same drive capability as Pin 3; layout symmetry recommended to minimize thermal gradients
9	Inverting Input (Amp 3)	Third independent amplifier input; shares same CMOS process variation as Pins 1 & 6
10	Non-inverting Input (Amp 3)	Supports simultaneous multi-sensor buffering without inter-channel interaction
11	Output (Amp 3)	Enables three-channel instrumentation without external op-amps; reduces BOM count
12	Inverting Input (Amp 4)	Final channel input; validated for operation down to –40°C ambient per TS274I spec
13	Non-inverting Input (Amp 4)	Compatible with thermistor, RTD, or bridge sensor excitation schemes requiring matched input pairs
14	Output (Amp 4)	Delivers full 4-channel analog signal conditioning in 5 mm × 6.5 mm footprint

Key Features

Feature	Design Value
Rail-to-ground output swing	VOL ≤ 50 mV ensures compatibility with 0 V referenced ADCs and microcontroller GPIOs without level-shifting
Unity-gain stable design	No external compensation required - simplifies layout and reduces component count in gain-of-1 buffers
Low input bias current (≤300 pA)	Minimizes voltage error across high-impedance sources (e.g., pH electrodes, piezoelectric sensors)
40° phase margin with 100 pF load	Guarantees stable operation driving long traces or capacitive DAC inputs without oscillation
120 dB channel separation	Prevents crosstalk between simultaneously active channels in multi-signal acquisition systems

Applications

Industrial Sensor Signal Conditioning

Multi-Channel Data Acquisition Front-End

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

IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, and level-shifting for four independent sensor channels before multiplexing into a single ADC.

Use Value: Eliminates need for four discrete op-amps, reducing board area by 65% and matching drift across channels due to monolithic CMOS construction.

Use Scenario: Building compact 4-channel oscilloscope front-end or portable multimeter with simultaneous voltage/current measurement paths.

IC Role / Device Role / Timing Role: Each amplifier conditions one signal path - one for current shunt sensing, one for voltage divider scaling, two for anti-alias filtering.

Use Value: 120 dB channel separation prevents measurement corruption during concurrent sampling; rail-to-ground output directly interfaces with 0–3.3 V SAR ADC references.

Low-Power Battery-Operated Instrumentation

Automotive Cabin Environment Monitoring

Use Scenario: Signal conditioning in handheld gas analyzers or portable environmental monitors powered by coin-cell batteries.

IC Role / Device Role / Timing Role: Provides gain and buffering for electrochemical sensor outputs while consuming only 4 mA total (4 × 1 mA) at 5 V supply.

Use Value: Enables >12-month battery life in continuous-monitoring mode; low input current avoids loading high-impedance sensor elements.

Use Scenario: Occupant detection, seatbelt status, and cabin temperature/humidity sensing in automotive infotainment control units.

IC Role / Device Role / Timing Role: Interfaces capacitive humidity sensors and NTC thermistors across four zones (driver, passenger, rear left, rear right).

Use Value: Extended –40°C to +125°C operating range meets AEC-Q100 Grade 3 requirements; TSSOP-14 package withstands reflow and vibration stress.

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 current (1.1 mA/amp)	Better for low-voltage (2.5–5.5 V) systems requiring tighter DC accuracy and faster settling	Select when V_CC ≤ 5.5 V and offset < 2 mV is mandatory; not rated for 12 V operation
LM324DT	Bipolar input, higher I_ib (30 nA), lower GBP (1.2 MHz), no guaranteed phase margin on capacitive loads	Lower cost for non-critical, room-temperature consumer applications with <100 kΩ source impedances	Choose only if input bias current >100× higher is acceptable and thermal drift is not a concern

Compared with TSV914IDT, TS274AIPT offers wider supply range (3–16 V) and superior capacitive-load stability but trades off DC precision and speed; versus LM324DT, it delivers 100× lower input current and verified unity-gain stability - essential for high-impedance, wide-temperature industrial designs.

Availability

TS274AIPT is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, multi-channel data acquisition front-ends, and low-power battery-operated instrumentation requiring stable component supply across extended temperature ranges.

Supply support for TS274AIPT 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 TS274 belongs to ST's legacy high-performance CMOS op-amp product line, engineered specifically for robust, low-drift analog signal conditioning in harsh industrial and automotive environments where reliability across temperature extremes is non-negotiable.

FAQ

What is the maximum capacitive load the TS274AIPT can drive while remaining stable?

The TS274AIPT maintains ≥40° phase margin with up to 100 pF capacitive load under standard test conditions (V_CC = 10 V, R_L = 10 kΩ). Driving larger loads requires external isolation resistor (≥100 Ω) in series with the output to preserve stability, as confirmed in Figure 10 of the datasheet.

Does the TS274AIPT support true rail-to-rail input operation?

No. The TS274AIPT features rail-to-ground output swing but has a limited common-mode input voltage range of 0 V to V_CC – 1.5 V. Inputs cannot be driven within 1.5 V of the positive rail, unlike rail-to-rail input amplifiers such as the TSV914.

How does the TS274AIPT's input bias current compare to bipolar-input op-amps like the LM324?

At 25°C, TS274AIPT specifies ≤150 pA input bias current (TS274AI), over 200× lower than LM324's typical 30 nA. This enables accurate amplification of signals from high-impedance sources (e.g., >1 MΩ pH probes) without significant DC error from bias current flow.

Is the TS274AIPT pin-compatible with other packages of the same part number?

Yes - the TS274AIPT (TSSOP-14), TS274AIDT (SO-14), and TS274AIN (DIP-14) share identical pinout and electrical specifications. Mechanical differences affect thermal performance (R_thJA = 100 °C/W for TSSOP vs. 80 °C/W for DIP) and PCB assembly method, but no circuit redesign is needed for package substitution.

TS274AIPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-TSSOP (0.173", 4.40mm 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-TSSOP

TS274AIPT FAQ

1.How can I place an order for TS274AIPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS274AIPT 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 TS274AIPT reliable?

The price and inventory of TS274AIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS274AIPT is usually 5 days.

3.What payment methods are accepted for TS274AIPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS274AIPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS274AIPT?

TS274AIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS274AIPT 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 TS274AIPT?

For technical support, including TS274AIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS274AIPT requirements.

6.How does Aetrix verify that TS274AIPT is sourced from the original manufacturer or authorized distributors?

All TS274AIPT 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 TS274AIPT meets industry standards.

7.What is the process for return or replacement of TS274AIPT?

All TS274AIPT units undergo pre-shipment inspection (PSI). If there is an issue with TS274AIPT, 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 TS274AIPT part is unused and in its original packaging.

Return procedure for TS274AIPT:

1.Submit a request within 90 days.

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

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