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

STMicroelectronics TS272ACDT

Name: TS272ACDT
Brand: STMicroelectronics
SKU: TS272ACDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS272ACDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS272ACDT.pdf

Description:: IC CMOS 2 CIRCUIT 8SO

Quantity:: RFQ Add To RFQ list

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Inventory:2,220

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Product details

Overview

TS272ACDT from STMicroelectronics is a dual CMOS operational amplifier in SO-8 package, designed for single-supply (3–16 V) or split-supply operation, featuring 3.5 MHz gain-bandwidth product, 5.5 V/µs slew rate, and rail-to-ground output swing. It delivers low input bias current (1 pA typ), low offset voltage (0.9 mV max for AC grade), and stable phase margin on capacitive loads - ideal for precision sensor signal conditioning in industrial control interfaces.

For engineers reviewing the TS272ACDT datasheet, TS272ACDT pinout, TS272ACDT application, or TS272ACDT equivalent, key selection criteria include input offset drift (2 µV/°C), common-mode input range (0 to V_CC − 1.5 V), supply current per amplifier (1.5 mA typ), and guaranteed performance across −40°C to +125°C industrial temperature range.

Technical Context

The TS272ACDT implements a two-stage CMOS op-amp architecture with high-impedance p-channel input differential pair, enabling ultra-low input bias current and minimal drift over temperature. Its internal compensation ensures stability with ≥100 pF capacitive loads without external components.

It supports rail-to-rail output swing down to ground (not V_CC) and operates with common-mode input voltage extending to ground, making it suitable for single-supply systems interfacing with 0–V_CC sensors or DACs. The device is not unity-gain stable in all configurations - phase margin is specified at 40° under standard test conditions (A_v = 40 dB, R_L = 10 kΩ, C_L = 100 pF).

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	3.5 MHz - sets maximum closed-loop bandwidth for unity-gain stable configurations with 10 kΩ load and 100 pF capacitance.
Slew Rate	5.5 V/µs - enables accurate reproduction of signals up to ~100 kHz at 10 V_PP without distortion.
Input Offset Voltage (AC grade)	0.9 mV max - ensures ≤9 mV error in 10× gain stages at room temperature.
Supply Current per Amplifier	1.5 mA typ at V_CC = 10 V - balances speed and power for mid-speed industrial signal chains.
Common-Mode Input Range	0 V to V_CC − 1.5 V - allows direct interface with grounded-output transducers and 0–V_CC reference sources.
Output Voltage Swing (Low)	50 mV above ground (typ) - supports true ground-referenced output in single-supply designs.
Phase Margin	40° at unity gain - guarantees stable step response with moderate overshoot (30%) under defined load conditions.

Pinout & Package

TS272ACDT is supplied in an 8-pin Small Outline (SO-8) plastic micropackage, compliant with JEDEC MS-012, with 1.27 mm pitch and gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Amplifier A output; capable of sourcing/sinking ±45 mA, swings to within 50 mV of ground.
2	Inverting Input 1	High-impedance (≥10¹² Ω) CMOS input; bias current ≤1 pA at 25°C.
3	Non-inverting Input 1	Matches Pin 2 electrically; used for positive feedback or reference biasing.
4	V_CC− (Ground)	Power return for dual supply or ground reference for single-supply operation.
5	Non-inverting Input 2	Independent high-Z input for second amplifier; shares same process characteristics as Pins 2–3.
6	Inverting Input 2	Second amplifier's inverting node; supports independent gain-setting resistor networks.
7	Output 2	Amplifier B output; electrically identical to Pin 1, fully isolated from Amp A.
8	V_CC+	Positive supply rail; supports 3–16 V operation; decoupling capacitor required near this pin.

Key Features

Feature	Design Value
Rail-to-ground output	Enables single-supply operation with grounded sensors or ADC references without level-shifting circuitry.
Ultra-low input bias current	1 pA typical at 25°C - minimizes voltage error across high-impedance source impedances (>1 MΩ).
Stable on capacitive loads	Guaranteed 40° phase margin with 100 pF load - eliminates need for isolation resistors in driving cables or filters.
Three offset voltage grades	AC grade (0.9 mV max) offers tighter DC accuracy than standard C grade (1.1 mV), without premium cost of B grade (0.25 mV).
Industrial temperature range	Specified from −40°C to +125°C - supports deployment in motor drives, PLC I/O modules, and outdoor instrumentation.

Applications

Temperature Sensor Interface

Current Loop Receiver

Use Scenario: Amplifying output of PT100 or thermistor bridges in HVAC controllers with 0–5 V ADC input.

IC Role / Device Role / Timing Role: Dual-opamp configured as precision instrumentation amplifier front-end and buffer stage.

Use Value: Low input bias current prevents bridge imbalance error; rail-to-ground output matches 0 V ADC reference.

Use Scenario: Converting 4–20 mA loop current to 0–5 V signal in industrial analog input modules.

IC Role / Device Role / Timing Role: Transimpedance amplifier with precision shunt and output buffer.

Use Value: 0.9 mV max V_os limits full-scale error to <0.02% FS; 1.5 mA supply enables low-power loop-powered design.

Programmable Gain Amplifier

Active Filter Stage

Use Scenario: Digitally switched gain stages in data acquisition front-ends for multi-range voltage measurement.

IC Role / Device Role / Timing Role: Second amplifier used as digitally controlled gain stage via analog switches.

Use Value: Channel separation >120 dB prevents crosstalk between gain paths; stable GBW supports ≤350 kHz bandwidth.

Use Scenario: 2nd-order Sallen-Key low-pass filter in anti-aliasing path before SAR ADC.

IC Role / Device Role / Timing Role: Unity-gain buffer and active filter integrator in same package.

Use Value: 40° phase margin ensures <5% overshoot in step response; 5.5 V/µs SR supports ≤100 kHz cutoff without slew limiting.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual CMOS op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2462IDR	Higher supply current (650 µA/amp), rail-to-rail output (both rails), lower V_os (0.6 mV max), but only 6.4 MHz GBW.	Better for battery-powered RRIO systems; less suitable where ground-swing-only output suffices and power budget is tight.	Choose TLV2462IDR when full rail-to-rail output and lower offset outweigh higher quiescent current.
LMV358IDGKR	Lower cost, 1 mA supply current, 1 MHz GBW, no guaranteed phase margin on capacitive loads, V_os = 3 mV max.	Acceptable for non-critical AC coupling or low-frequency buffering where stability margins are relaxed.	Choose LMV358IDGKR only for cost-sensitive, low-bandwidth (<100 kHz), non-precision applications.

Compared with TLV2462IDR and LMV358IDGKR, TS272ACDT uniquely balances low power (1.5 mA), robust capacitive-load stability (40° PM), and ground-swing capability - making it optimal for industrial signal chains requiring reliability, moderate speed, and single-supply simplicity without rail-to-rail overhead.

Availability

TS272ACDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller (PLC) analog input modules, and current-loop receiver circuits requiring stable component supply across extended temperature ranges.

Supply support for TS272ACDT 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, specializing in automotive, industrial, and power management ICs with vertical manufacturing capabilities.

The TS272 series belongs to ST's legacy high-performance CMOS op-amp product line, engineered specifically for low-power, precision analog signal conditioning in industrial and automotive environments where input bias current and temperature drift are critical.

FAQ

Is TS272ACDT unity-gain stable?

No - TS272ACDT is not unity-gain stable in all configurations. Its phase margin is specified at 40° under test conditions (A_v = 40 dB, R_L = 10 kΩ, C_L = 100 pF). For unity-gain applications, external compensation (e.g., dominant-pole capacitor) may be required to ensure stability, especially with heavy capacitive loads.

What is the maximum capacitive load TS272ACDT can drive without oscillation?

TS272ACDT maintains ≥40° phase margin up to 100 pF capacitive load under standard test conditions (R_L = 10 kΩ, V_CC = 10 V). Driving >100 pF requires series isolation resistance (typically 10–100 Ω) at the output to preserve stability, as confirmed by Figure 8 in the datasheet.

Does TS272ACDT support dual-supply operation?

Yes - TS272ACDT operates with dual supplies from ±1.5 V to ±8 V (total supply ≤16 V). The common-mode input range extends to V_CC−, and output swings to within 50 mV of either rail, enabling symmetric signal handling in traditional op-amp configurations like inverting amplifiers and active filters.

How does the AC grade differ from the C grade in TS272 series?

The AC grade specifies tighter input offset voltage (0.9 mV max vs. 1.1 mV max for C grade) and same temperature range (−40°C to +125°C), achieved through post-package trimming. Both share identical pinout, package, and all other electrical parameters - making AC a drop-in upgrade where improved DC accuracy is required without redesign.

TS272ACDT 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:: -

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 (x2 Channels)

Current - Output / Channel:: 45 mA

Voltage - Supply Span (Min):: 3 V

Voltage - Supply Span (Max):: 16 V

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

TS272ACDT FAQ

1.How can I place an order for TS272ACDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS272ACDT 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 TS272ACDT reliable?

The price and inventory of TS272ACDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS272ACDT is usually 5 days.

3.What payment methods are accepted for TS272ACDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS272ACDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS272ACDT?

TS272ACDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS272ACDT 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 TS272ACDT?

For technical support, including TS272ACDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS272ACDT requirements.

6.How does Aetrix verify that TS272ACDT is sourced from the original manufacturer or authorized distributors?

All TS272ACDT 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 TS272ACDT meets industry standards.

7.What is the process for return or replacement of TS272ACDT?

All TS272ACDT units undergo pre-shipment inspection (PSI). If there is an issue with TS272ACDT, 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 TS272ACDT part is unused and in its original packaging.

Return procedure for TS272ACDT:

1.Submit a request within 90 days.

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

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