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

STMicroelectronics TS272AIDT

Name: TS272AIDT
Brand: STMicroelectronics
SKU: TS272AIDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS272AIDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS272AIDT.pdf

Description:: IC CMOS 2 CIRCUIT 8SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS272AIDT from STMicroelectronics is a dual CMOS operational amplifier in SO-8 package, designed for single- or dual-supply operation with rail-to-ground output swing, 3.5 MHz gain-bandwidth product, and 1 mA per amplifier supply current. It delivers stable performance on capacitive loads and supports industrial temperature range (–40°C to +125°C) in low-power analog signal conditioning.

For engineers reviewing the TS272AIDT datasheet, TS272AIDT pinout, TS272AIDT application, or TS272AIDT equivalent, key selection criteria include input offset voltage (≤2 mV), phase margin (≥40°), output drive capability (±30 mA), and CMOS input stage advantages for high-impedance sensor interfacing and battery-powered instrumentation.

Technical Context

The TS272AIDT implements a two-stage CMOS op-amp architecture with current-source-loaded differential input pair and class-A output stage, enabling rail-to-ground output swing and low input bias current (≤300 pA). Its internal compensation ensures stability with ≥100 pF capacitive load without external components.

It operates from 3 V to 16 V supply, supports common-mode input range from ground to V_CC – 1.5 V, and maintains ≥65 dB common-mode rejection across its full operating temperature range. The device uses ST's silicon-gate CMOS process to minimize input current drift versus temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	3.5 MHz - sets usable small-signal bandwidth at unity gain; enables 100 kHz closed-loop operation with gain of 35
Input Offset Voltage	≤2 mV - ensures ≤2 mV DC error at output with zero differential input; critical for precision DC-coupled amplification
Supply Current per Amp	1.5 mA max - balances speed and power for portable instrumentation; lower than bipolar alternatives at same GBW
Output Swing	Rail-to-ground - allows direct interface with ADCs or logic inputs referenced to ground without level-shifting circuitry
Phase Margin	≥40° - guarantees stable step response with ≥100 pF capacitive load; eliminates need for isolation resistors in driving cables or filters
Common-Mode Range	0 V to V_CC – 1.5 V - supports single-supply sensing of ground-referenced signals (e.g., current shunt, thermistor bridges)
Slew Rate	5.5 V/µs - limits large-signal settling time to <1 µs for 5 V step; sufficient for audio and control loop applications

Pinout & Package

TS272AIDT is housed in an 8-pin SO (Small Outline) plastic micropackage (SO-8), 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 ±30 mA; swings to ground under load
2	Inverting Input 1	Differential input node for Amp A; high-impedance CMOS input (I_ib ≤ 300 pA)
3	Non-inverting Input 1	Differential input node for Amp A; identical impedance and bias behavior as Pin 2
4	V_CC–	Negative supply rail; must be connected to ground in single-supply configurations
5	Non-inverting Input 2	Differential input node for Amp B; electrically isolated but matched to Amp A inputs
6	Inverting Input 2	Differential input node for Amp B; shares same CMOS input structure and specs as Pins 2 and 3
7	Output 2	Amplifier B output; fully independent channel with identical drive and swing specs as Pin 1
8	V_CC+	Positive supply rail; supports 3–16 V operation; powers both amplifiers simultaneously

Key Features

Feature	Design Value
Rail-to-ground output swing	Enables direct interfacing with ground-referenced ADCs and microcontroller inputs without level-shifting networks
Stable on capacitive loads ≥100 pF	Eliminates need for series isolation resistors when driving long traces, cables, or filter networks
Low input bias current (≤300 pA)	Minimizes voltage error across high-value feedback or sensor resistors (e.g., >1 MΩ photodiode or pH electrode circuits)
Industrial temperature range (–40°C to +125°C)	Supports deployment in automotive engine compartments, industrial PLC I/O modules, and outdoor sensor nodes
CMOS input stage with low drift	Reduces offset drift over temperature vs. JFET op-amps-critical for unattended long-term measurement systems

Applications

Temperature Sensor Signal Conditioning

Portable Medical Instrumentation

Use Scenario: Amplifying low-level output from platinum RTD or thermistor bridge in handheld thermometer or patient monitor.

IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: one amp for bridge excitation regulation, second for differential gain and offset correction.

Use Value: Rail-to-ground output allows direct connection to 12-bit SAR ADC reference (0–3.3 V); low input bias avoids self-heating errors in high-resistance sensors.

Use Scenario: Signal conditioning for ECG electrode inputs in battery-powered wearable monitor.

IC Role / Device Role / Timing Role: First-stage gain and filtering for biopotential signals; dual configuration supports right-leg drive and lead-I derivation.

Use Value: 300 pA input bias prevents polarization voltage buildup across dry electrodes; 1.5 mA total quiescent current extends battery life beyond 72 hours.

Industrial 4–20 mA Loop Transmitter

Automotive Cabin Air Quality Sensor Interface

Use Scenario: Converting DAC output to precise 4–20 mA current loop signal using voltage-to-current converter topology.

IC Role / Device Role / Timing Role: Output buffer and current-sense amplifier in Howland current source configuration.

Use Value: ±30 mA output drive sustains loop compliance up to 1 kΩ load at 24 V supply; stable phase margin prevents oscillation during cable capacitance variations.

Use Scenario: Interfacing NDIR CO₂ sensor with integrated thermopile detector in HVAC control module.

IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier for thermopile current output, followed by gain/offset stage for analog output scaling.

Use Value: 30 nV/√Hz input noise preserves SNR for µV-level thermopile signals; –40°C to +125°C rating matches under-dash ambient requirements.

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
TLV272IDR	Lower supply current (170 µA/amp), lower GBW (2.2 MHz), wider V_CC range (2.7–16 V)	Better suited for ultra-low-power sensor nodes where bandwidth <200 kHz suffices	Select when battery life >1 year required and signal bandwidth ≤100 kHz
LMV358IDR	Higher supply current (240 µA/amp), rail-to-rail output (not rail-to-ground), lower input impedance (BJT input)	Preferred for mixed-signal systems needing full rail-to-rail swing and faster settling	Choose when interfacing with 1.8 V logic or requiring output swing to V_CC, not just ground

Compared with TLV272IDR and LMV358IDR, TS272AIDT uniquely combines rail-to-ground output, 3.5 MHz bandwidth, and industrial temperature rating-making it optimal for 3–16 V single-supply systems demanding precision, stability, and wide ambient operation without rail-to-rail output overhead.

Availability

TS272AIDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive cabin electronics requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TS272AIDT 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 discrete technologies with vertical manufacturing capabilities and broad analog/mixed-signal portfolio.

The TS272 series belongs to ST's legacy high-performance CMOS op-amp family, engineered specifically for cost-sensitive industrial and instrumentation applications requiring robustness, low power, and reliable single-supply operation.

FAQ

What is the maximum capacitive load the TS272AIDT can drive without instability?

The TS272AIDT maintains ≥40° phase margin with up to 100 pF capacitive load at unity gain, as verified in Figure 8 of the official datasheet. Driving larger loads (e.g., >200 pF) requires external isolation resistor (typically 10–100 Ω) between output and load to preserve stability-no internal compensation adjustment is possible.

Does TS272AIDT support true rail-to-rail input common-mode range?

No. The TS272AIDT supports common-mode input voltage from 0 V to V_CC – 1.5 V, meaning it cannot accept inputs within 1.5 V of the positive rail. This limitation arises from its CMOS input stage design and must be accounted for in single-supply configurations where high-side sensing is required.

Can TS272AIDT operate from a 3.3 V supply in single-supply mode?

Yes. TS272AIDT is fully specified down to 3 V supply (V_CC+ = 3 V, V_CC– = 0 V), delivering functional rail-to-ground output swing and 3.5 MHz GBW. However, slew rate drops to ~2.5 V/µs and output current capability reduces proportionally-verify load requirements against Electrical Characteristics Table on page 4 of the datasheet.

Is the TS272AIDT pin-compatible with other TS272 variants like TS272CDT?

Yes. All TS272 variants-including TS272AIDT, TS272CDT, and TS272MIDT-share identical SO-8 pinout and footprint. Differences lie solely in temperature grade (–40°C to +125°C for 'AI', 0°C to +70°C for 'C'), input offset voltage distribution ('A' grade = 0.9 mV typ), and supply current tolerance-not pin function or layout.

TS272AIDT 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:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

TS272AIDT FAQ

1.How can I place an order for TS272AIDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS272AIDT 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 TS272AIDT reliable?

The price and inventory of TS272AIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS272AIDT is usually 5 days.

3.What payment methods are accepted for TS272AIDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS272AIDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS272AIDT?

TS272AIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS272AIDT 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 TS272AIDT?

For technical support, including TS272AIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS272AIDT requirements.

6.How does Aetrix verify that TS272AIDT is sourced from the original manufacturer or authorized distributors?

All TS272AIDT 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 TS272AIDT meets industry standards.

7.What is the process for return or replacement of TS272AIDT?

All TS272AIDT units undergo pre-shipment inspection (PSI). If there is an issue with TS272AIDT, 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 TS272AIDT part is unused and in its original packaging.

Return procedure for TS272AIDT:

1.Submit a request within 90 days.

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

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