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 TS27M4CDT

Name: TS27M4CDT
Brand: STMicroelectronics
SKU: TS27M4CDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TS27M4CDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS27M4CDT.pdf

Description:: IC CMOS 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,366

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

Product details

Overview

TS27M4CDT from STMicroelectronics is a precision low-power CMOS quad operational amplifier optimized for single-supply operation (3–16 V), delivering 150 µA per amplifier supply current, 1 MHz gain-bandwidth product, and rail-to-ground output swing. It features 0.9 mV typical input offset voltage (TS27M4C grade), 1 pA typical input bias current, and unity-gain stability with capacitive loads up to 100 pF - used in battery-powered sensor signal conditioning and portable medical instrumentation.

For engineers reviewing the TS27M4CDT datasheet, TS27M4CDT pinout, TS27M4CDT application, or TS27M4CDT equivalent, this device is selected for ultra-low quiescent current, high input impedance (>10¹² Ω), and robust phase margin (45°) in space-constrained analog front-ends requiring stable DC-coupled amplification without dual supplies.

Technical Context

This quad op-amp employs ST's silicon-gate CMOS process to achieve sub-200 µA/amplifier ICC while maintaining 1 MHz GBP and 0.6 V/µs slew rate. Its input stage delivers <1 pA input bias current with minimal drift over temperature, distinguishing it from JFET-input alternatives.

The architecture supports rail-to-ground output (VOL = 50 mV at I_L = 1 mA) and common-mode input range extending to V_CC−1.5 V. Phase margin remains ≥45° across 3–16 V supply and up to 100 pF capacitive load - enabling direct driving of ADC inputs or RC filters without isolation resistors.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Current	150 µA per amplifier - enables >1-year battery life in coin-cell-powered IoT sensors
Gain-Bandwidth Product	1 MHz - supports anti-aliasing filtering up to ~100 kHz with unity-gain stability
Input Offset Voltage	0.9 mV typ. (TS27M4C grade) - ensures ≤0.9% error in 1 V full-scale DC measurement
Input Bias Current	1 pA typ. - permits use with >10 MΩ source impedances without significant DC error
Output Swing	Rail-to-ground (VOL = 50 mV @ 1 mA) - allows direct interfacing to 0–3.3 V ADC references
Phase Margin	45° min. - guarantees stable closed-loop response with 100 pF capacitive loads
Common-Mode Range	0 V to V_CC−1.5 V - accommodates single-supply sensor outputs down to ground

Pinout & Package

TS27M4CDT is supplied in SO-14 (Small Outline) plastic micropackage (JEDEC MS-012AC), 8.55 × 5.8 mm body, 1.27 mm lead pitch, surface-mount compatible.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (Amp 1)	High-impedance node for feedback network connection; accepts signals down to 0 V
2	Non-inverting Input (Amp 1)	DC-coupled sensor interface point; common-mode range includes ground
3	Output (Amp 1)	Capable of sinking 45 mA and sourcing 60 mA; drives 100 kΩ loads to within 50 mV of ground
4	V_CC− (GND)	Ground reference for all four amplifiers; must be low-impedance return path
5	Non-inverting Input (Amp 2)	Independent input for second channel; electrically isolated from Amp 1 inputs
6	Inverting Input (Amp 2)	Feedback node for Amp 2; same CMOS input characteristics as Pin 1
7	Output (Amp 2)	Full-output-swing capability identical to Pin 3; no crosstalk above 120 dB
8	V_CC+	Positive supply rail (3–16 V); decoupling capacitor required within 5 mm
9	Output (Amp 3)	Third independent amplifier output; shares V_CC+/GND rails but not internal nodes
10	Inverting Input (Amp 3)	Matched input structure to Pins 1 and 6; supports identical bias current specs
11	Non-inverting Input (Amp 3)	Third-channel sensor interface; same input voltage range and impedance as Pin 2
12	Non-inverting Input (Amp 4)	Fourth-channel input; enables multi-sensor simultaneous sampling on single IC
13	Inverting Input (Amp 4)	Feedback terminal for final amplifier; layout symmetry recommended for matching
14	Output (Amp 4)	Final output; fully specified for drive strength, noise, and settling time like other channels

Key Features

Feature	Design Value
Ultra-low power operation	150 µA per amplifier enables 4-channel analog front-end in <1 mA total system budget
Rail-to-ground output	50 mV low-level output at 1 mA load preserves dynamic range when interfacing to 0 V–reference ADCs
Unity-gain stable	No external compensation required for gains ≥1, reducing BOM count and PCB area
High input impedance	CMOS input stage provides >10¹² Ω resistance, minimizing loading on high-Z pH or thermocouple sensors
Low input current drift	Stable 1 pA bias current over −40°C to +70°C avoids calibration drift in field-deployed instruments

Applications

Portable ECG Monitor Front-End

Industrial Temperature Sensor Signal Chain

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

IC Role / Device Role / Timing Role: Quad amplifier configured as 3× instrumentation amp stages + 1× reference buffer; each channel processes one electrode pair.

Use Value: 150 µA per amplifier extends coin-cell life beyond 12 months; rail-to-ground output matches 0–1.8 V SAR ADC input range without level-shifting.

Use Scenario: Conditioning PT100/RTD bridge outputs in programmable logic controller (PLC) analog input modules.

IC Role / Device Role / Timing Role: First-stage gain/offset adjustment and filter driver before 24-bit delta-sigma ADC; operates from 5 V or 12 V industrial rail.

Use Value: 0.9 mV V_os contributes <0.1°C error in 0–100°C range; 120 dB channel separation prevents crosstalk between 8-channel simultaneous sampling.

Smoke Detector Analog Processing

Smart Home CO Sensor Interface

Use Scenario: Amplifying photoelectric chamber current in UL-listed residential smoke alarms powered by 9 V alkaline batteries.

IC Role / Device Role / Timing Role: Transimpedance amplifier + comparator reference buffer; operates continuously in ultra-low-power sleep mode.

Use Value: 150 µA quiescent current reduces average system draw to <20 µA in standby; 45° phase margin ensures stable response during rapid smoke-induced current transients.

Use Scenario: Signal conditioning for electrochemical CO gas sensors in battery-operated smart home hubs.

IC Role / Device Role / Timing Role: Low-noise transducer amplifier (38 nV/√Hz) and active low-pass filter driver feeding MCU ADC.

Use Value: 38 nV/√Hz input noise preserves ppm-level CO resolution; SO-14 package enables compact 2-layer PCB layout with minimal thermal gradient.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2464IDR	Higher supply current (550 µA/amp), higher GBP (6.4 MHz), rail-to-rail output	Requires >3× more supply current; better for AC-coupled high-speed apps, not battery longevity	Select if bandwidth >1 MHz or rail-to-rail output swing is mandatory; avoid for <10 µA system budgets
LMV324IDR	Lower V_os (1.8 mV max), higher ICC (120 µA/amp), no guaranteed phase margin on capacitive loads	Marginally lower power but untested stability with >10 pF loads; unsuitable for direct ADC driving	Choose only for cost-sensitive non-critical DC apps where output capacitance is strictly controlled

Compared with TLV2464IDR and LMV324IDR, TS27M4CDT uniquely balances ultra-low ICC (150 µA), verified 45° phase margin at 100 pF, and 0.9 mV V_os - making it the sole option among these three for long-life, capacitive-load-tolerant, precision single-supply sensor interfaces.

Availability

TS27M4CDT is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, smoke detection systems, and smart home environmental monitors requiring stable component supply across extended production lifecycles.

Supply support for TS27M4CDT 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, designing and manufacturing analog, microcontroller, power, and MEMS products for industrial, automotive, and consumer markets.

TS27M4CDT belongs to ST's precision analog portfolio targeting low-power signal conditioning; its design prioritizes battery longevity, single-supply usability, and stability in unregulated environments.

FAQ

What is the maximum capacitive load the TS27M4CDT can drive while maintaining stability?

The TS27M4CDT maintains ≥45° phase margin with up to 100 pF capacitive load at unity gain, as verified in Figure 12 of the datasheet. Driving larger loads requires an isolation resistor (≥100 Ω) between output and capacitance to preserve stability - no external compensation capacitor is needed for loads ≤100 pF.

Can TS27M4CDT operate from a 3.3 V supply?

Yes - the device is fully specified from 3 V to 16 V single supply (Table 2). At 3.3 V, it delivers 150 µA/amplifier ICC, 0.6 V/µs slew rate, and rail-to-ground output swing (VOL ≤ 100 mV at 0.5 mA), making it suitable for modern 3.3 V microcontroller-based systems.

How does input offset voltage vary across temperature for TS27M4CDT?

TS27M4CDT exhibits 2 µV/°C input offset voltage drift (Table 3), resulting in ≤140 µV total drift over 0°C to +70°C. This is significantly lower than JFET-input op-amps and ensures <0.014% gain error in precision DC amplification without periodic recalibration.

Is TS27M4CDT RoHS-compliant and halogen-free?

Yes - TS27M4CDT is manufactured in ST's ECOPACK®-compliant SO-14 package with lead-free second-level interconnect and halogen-free molding compound, meeting JEDEC JESD97 and EU RoHS Directive 2011/65/EU requirements as stated in Section 4 of the datasheet.

TS27M4CDT 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:: 0.6V/µs

Gain Bandwidth Product:: 1 MHz

-3db Bandwidth:: -

Current - Input Bias:: 1 pA

Voltage - Input Offset:: 1.1 mV

Current - Supply:: 150µA (x4 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:: 14-SO

TS27M4CDT FAQ

1.How can I place an order for TS27M4CDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS27M4CDT 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 TS27M4CDT reliable?

The price and inventory of TS27M4CDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27M4CDT is usually 5 days.

3.What payment methods are accepted for TS27M4CDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27M4CDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS27M4CDT?

TS27M4CDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS27M4CDT 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 TS27M4CDT?

For technical support, including TS27M4CDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27M4CDT requirements.

6.How does Aetrix verify that TS27M4CDT is sourced from the original manufacturer or authorized distributors?

All TS27M4CDT 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 TS27M4CDT meets industry standards.

7.What is the process for return or replacement of TS27M4CDT?

All TS27M4CDT units undergo pre-shipment inspection (PSI). If there is an issue with TS27M4CDT, 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 TS27M4CDT part is unused and in its original packaging.

Return procedure for TS27M4CDT:

1.Submit a request within 90 days.

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

Tech Hub

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…