Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics TS27L2ACDT

Name: TS27L2ACDT
Brand: STMicroelectronics
SKU: TS27L2ACDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TS27L2ACDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS27L2ACDT.pdf

Description:: IC CMOS 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,425

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TS27L2ACDT from STMicroelectronics is a precision, very low power CMOS dual operational amplifier in SO-8 package, featuring 10 µA per amplifier supply current, 0.25 mV max input offset voltage (AC grade), rail-to-ground output swing, and 0.1 MHz gain-bandwidth product. It operates from 3 V to 16 V single supply and is used in battery-powered sensor signal conditioning and portable medical instrumentation.

For engineers reviewing the TS27L2ACDT datasheet, TS27L2ACDT pinout, TS27L2ACDT application, or TS27L2ACDT equivalent, key selection criteria include ultra-low quiescent current, guaranteed low offset voltage across temperature, capacitive-load stability up to 100 pF, and compatibility with single-supply 3–16 V systems requiring high input impedance (>10¹² Ω) and sub-100 pA input bias current.

Technical Context

This dual op-amp uses ST's silicon-gate CMOS process to achieve 10 µA/amplifier ICC at 25°C while maintaining 0.25 mV max Vio (AC grade) and 45° phase margin into 100 pF loads. Its input stage delivers <1 pA typical Iib and <2 µV/°C Vio drift, enabling stable DC-coupled amplification in high-impedance sensor front-ends.

The device supports rail-to-ground output swing (VOL ≤ 50 mV at Io = 1 mA) and common-mode input range extending to VCC− − 1.5 V, making it suitable for single-supply operation without level-shifting circuitry. Gain-bandwidth (0.1 MHz) and slew rate (0.04 V/µs) are optimized for low-frequency precision applications-not high-speed signal processing.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Current	10 µA per amplifier - enables multi-year battery life in always-on IoT sensor nodes
Input Offset Voltage	0.25 mV max (AC grade) - ensures ≤0.5% error in 100 mV full-scale medical transducer outputs
Input Bias Current	1 pA typ. - preserves signal integrity in pH electrode and piezoelectric sensor interfaces
Common-Mode Range	0 V to VCC+ − 1.5 V - allows direct interfacing with 0–3.3 V microcontroller ADC references
Output Swing	Rail-to-ground (VOL ≤ 50 mV @ 1 mA) - eliminates need for negative supply in single-rail data acquisition
Phase Margin	45° into 100 pF load - guarantees stability with long PCB traces or capacitive transducer cables
Gain-Bandwidth	0.1 MHz - sufficient for ECG, thermistor, and strain gauge amplification below 10 kHz

Pinout & Package

TS27L2ACDT is housed in an 8-pin Small Outline (SO-8) plastic micropackage (JEDEC MS-012), 4.8–5.0 mm wide, 5.8–6.2 mm long, 1.75 mm height, with 1.27 mm pitch gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Amplifier A output; capable of sinking 45 mA and driving 1 MΩ load to ground
2	Inverting Input 1	High-impedance node (Zin > 10¹² Ω); sensitive to leakage-requires guard ring in PCB layout
3	Non-inverting Input 1	Matches Pin 2 characteristics; differential pair input for amplifier A
4	VCC− (GND)	Ground reference for single-supply operation; must be low-impedance return path
5	Non-inverting Input 2	Amplifier B non-inverting input; electrically isolated from Amp A except via shared VCC−
6	Inverting Input 2	Amplifier B inverting input; matched to Pin 5 for common-mode rejection
7	Output 2	Amplifier B output; identical drive capability and rail-to-ground swing as Pin 1
8	VCC+	Positive supply rail (3–16 V); decoupling capacitor required within 5 mm of this pin

Key Features

Feature	Design Value
Ultra-low supply current	10 µA per amplifier enables >10-year coin-cell operation in wireless sensor transmitters
Guaranteed low offset voltage	0.25 mV max (AC grade) over 0°C to +70°C eliminates manual calibration in portable diagnostics
Capacitive-load stability	Stable with ≥100 pF load-supports direct connection to long coaxial cables in industrial sensors
Rail-to-ground output	VOL ≤ 50 mV @ 1 mA allows full dynamic range utilization with 0 V referenced ADCs
CMOS input stage	1 pA typical Iib prevents voltage error in high-Z pH and photodiode circuits

Applications

Portable ECG Monitor Front-End

Wireless Temperature Node Signal Chain

Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable ECG devices.

IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier first stage, providing gain and buffering before 12-bit SAR ADC sampling.

Use Value: 0.25 mV max Vio and 1 pA Iib prevent baseline drift and electrode polarization errors; 10 µA ICC extends CR2032 battery life beyond 2 years.

Use Scenario: Conditioning output from 10 kΩ NTC thermistors in LoRaWAN-enabled environmental sensors deployed outdoors.

IC Role / Device Role / Timing Role: Precision voltage follower and ratiometric reference buffer driving ADC input with minimal loading error.

Use Value: Rail-to-ground output ensures full 0–3.3 V ADC range utilization; 2 µV/°C Vio drift avoids recalibration across −20°C to +70°C operating range.

Low-Power Gas Sensor Interface

Industrial Level Transmitter Analog Output

Use Scenario: Amplifying nanoampere current from electrochemical CO sensors powered by intermittent solar harvesting.

IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain resistor, operating in duty-cycled active mode.

Use Value: Sub-10 µA quiescent current minimizes dark-current error during sleep intervals; 10¹² Ω input impedance prevents sensor polarization.

Use Scenario: Driving 4–20 mA loop transmitter output stages in explosion-proof field instruments with 24 V loop supply.

IC Role / Device Role / Timing Role: Buffered voltage-to-current converter reference amplifier ensuring loop accuracy under varying cable capacitance.

Use Value: 45° phase margin into 100 pF stabilizes feedback despite long twisted-pair wiring; 65 dB CMRR rejects common-mode noise on factory floors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-power precision op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2462IDR	Higher ICC (230 µA), higher Vio (1.6 mV), but 2.5 V min supply and rail-to-rail I/O	Better for 2.5–5.5 V systems needing full rail-to-rail swing; unsuitable for <10 µA battery budgets	Select if supply voltage is ≤5 V and rail-to-rail input is mandatory; avoid for coin-cell longevity
OPA2333AIDR	Zero-drift architecture, 0.02 µV/°C Vio drift, but ICC = 17 µA and 1.8 V min supply	Superior DC accuracy for precision weight scales; higher cost and power than TS27L2ACDT	Choose only when sub-1 µV/°C drift is required; otherwise TS27L2ACDT offers better µA/mV trade-off

Compared with TLV2462IDR and OPA2333AIDR, TS27L2ACDT uniquely delivers 10 µA ICC with 0.25 mV Vio in a cost-optimized SO-8 package-making it optimal for battery-powered analog front-ends where µA-level current dominates system lifetime and ±0.5 mV offset is acceptable.

Availability

TS27L2ACDT is available at Aetrix Electronics and suitable for portable medical monitors, wireless environmental sensors, low-power gas detection modules, and industrial 4–20 mA transmitters requiring stable component supply and long-term manufacturability.

Supply support for TS27L2ACDT 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, microcontroller, power, and MEMS products for industrial, automotive, and consumer markets.

TS27L2ACDT belongs to ST's precision low-power op-amp family, engineered specifically for energy-constrained sensing applications where nanoscale input currents and microampere supply draw directly impact system runtime and signal fidelity.

FAQ

What is the maximum capacitive load the TS27L2ACDT can drive while remaining stable?

The TS27L2ACDT maintains ≥45° phase margin with up to 100 pF capacitive load, as verified in Figure 8 of the datasheet. Stability is preserved without external compensation when driving cables, ADC input capacitance, or RC filters. Loads exceeding 100 pF require isolation resistor or feedback capacitor adjustment per application note AN2719.

Does the TS27L2ACDT support true rail-to-rail input operation?

No. The TS27L2ACDT features rail-to-ground output swing but its common-mode input voltage range is 0 V to VCC+ − 1.5 V. It does not accept inputs within 1.5 V of VCC+, limiting use in high-side sensing without level-shifting. This differs from rail-to-rail input op-amps like the TLV2462.

How does the AC grade (TS27L2ACDT) differ from the standard C grade (TS27L2CDT)?

The AC grade guarantees ≤0.25 mV input offset voltage at 25°C and across 0°C to +70°C, whereas the C grade specifies ≤1.1 mV. Both share identical 10 µA supply current, 0.1 MHz GBW, and SO-8 packaging. The AC grade is selected for applications demanding tighter DC accuracy without zero-drift complexity or cost.

Can the TS27L2ACDT operate from a 2.5 V supply?

No. The absolute minimum supply voltage is 3 V per Absolute Maximum Ratings (VCC+ ≥ 3 V). Operation below 3 V risks undefined behavior, reduced output swing, and failure to meet specified parameters including input offset and supply current. For 2.5 V systems, consider the TLV2462 or MCP6002 instead.

TS27L2ACDT 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:: 0.04V/µs

Gain Bandwidth Product:: 100 kHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 900 µV

Current - Supply:: 10µA (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-SOIC

TS27L2ACDT FAQ

1.How can I place an order for TS27L2ACDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS27L2ACDT 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 TS27L2ACDT reliable?

The price and inventory of TS27L2ACDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27L2ACDT is usually 5 days.

3.What payment methods are accepted for TS27L2ACDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27L2ACDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS27L2ACDT?

TS27L2ACDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS27L2ACDT 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 TS27L2ACDT?

For technical support, including TS27L2ACDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27L2ACDT requirements.

6.How does Aetrix verify that TS27L2ACDT is sourced from the original manufacturer or authorized distributors?

All TS27L2ACDT 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 TS27L2ACDT meets industry standards.

7.What is the process for return or replacement of TS27L2ACDT?

All TS27L2ACDT units undergo pre-shipment inspection (PSI). If there is an issue with TS27L2ACDT, 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 TS27L2ACDT part is unused and in its original packaging.

Return procedure for TS27L2ACDT:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…