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

STMicroelectronics TS27L2CD

Name: TS27L2CD
Brand: STMicroelectronics
SKU: TS27L2CD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS27L2CD

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TS27L2CD.pdf

Description:: IC CMOS 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,917

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Product details

Overview

TS27L2CD 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 (TS27L2C 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 designed for battery-powered sensor signal conditioning and portable instrumentation.

For engineers reviewing the TS27L2CD datasheet, TS27L2CD pinout, TS27L2CD application, or TS27L2CD equivalent, key selection criteria include ultra-low quiescent current, guaranteed input offset voltage grade, capacitive-load stability, common-mode input range extending to ground, and SO-8 footprint compatibility with space-constrained PCB layouts.

Technical Context

This dual op-amp uses ST's silicon-gate CMOS process to achieve high input impedance (>10¹² Ω), sub-picoampere input bias current (1 pA typ.), and negligible input current drift over temperature. Its two-stage architecture delivers stable unity-gain operation with ≥45° phase margin into 100 pF loads.

The device supports single-supply operation with common-mode input range from ground to V_CC – 1.5 V and rail-to-ground output swing. It features internal compensation, no external components required, and is specified across 0°C to +70°C (TS27L2C grade) for industrial-grade reliability.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Current	10 µA per amplifier - enables multi-year battery life in always-on sensor nodes
Input Offset Voltage	0.25 mV max (TS27L2C) - ensures ≤0.5% error in 100 mV full-scale DC-coupled measurements
Gain-Bandwidth Product	0.1 MHz - suitable for DC–10 kHz signal amplification with stable closed-loop gain
Common-Mode Input Range	0 V to V_CC – 1.5 V - allows direct interfacing with ground-referenced transducers
Output Voltage Swing	Rail-to-ground (low side), up to V_CC – 1.2 V (high side) - maximizes dynamic range in single-supply systems
Phase Margin	≥45° at unity gain with 100 pF load - eliminates oscillation without external compensation
Input Bias Current	1 pA typ. at 25°C - prevents signal degradation in high-impedance pH or photodiode circuits

Pinout & Package

TS27L2CD is housed in an 8-pin Small Outline (SO-8) plastic micropackage, compliant with JEDEC MS-012, with 1.27 mm pitch and gull-wing leads. Package dimensions: 4.9 mm × 6.0 mm × 1.75 mm (max height).

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Amplifier 1 output; capable of sinking 45 mA and sourcing 60 mA
2	Inverting Input 1	High-impedance node (Z_in > 10¹² Ω); sensitive to layout-induced leakage
3	Non-inverting Input 1	Matches Pin 2 in impedance and bias behavior; used for reference or sensor connection
4	V_CC– (Ground)	Power return for both amplifiers; must be low-impedance path to minimize noise coupling
5	Non-inverting Input 2	Independent high-Z input for second channel; electrically isolated from Channel 1
6	Inverting Input 2	Matched to Pin 2; supports dual-channel differential or independent signal paths
7	Output 2	Amplifier 2 output; fully independent, with same drive capability as Pin 1
8	V_CC+	Positive supply rail (3–16 V); requires local 100 nF ceramic decoupling

Key Features

Feature	Design Value
Ultra-low supply current	10 µA per amplifier enables micro-power operation in energy-harvesting systems
Guaranteed offset voltage grade	0.25 mV max (C grade) provides predictable DC accuracy without trimming
Rail-to-ground output	Enables full utilization of ADC reference range in single-supply data acquisition
Stable with capacitive loads	≥45° phase margin into 100 pF allows direct driving of long traces or ADC input capacitance
CMOS input stage	1 pA input bias current minimizes voltage error in MΩ-range sensor interfaces

Applications

Portable Gas Sensor Interface

Medical ECG Front-End Stage

Use Scenario: Amplifying low-level, high-impedance signals from electrochemical gas sensors powered by coin-cell batteries.

IC Role / Device Role / Timing Role: Dual-channel DC-coupled transducer amplifier with rail-to-ground output for ADC input scaling.

Use Value: 10 µA quiescent current extends battery life beyond 5 years; 0.25 mV offset avoids calibration drift in field-deployed units.

Use Scenario: Conditioning microvolt-level biopotential signals from dry-electrode ECG patches in wearable monitors.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer and baseline correction integrator.

Use Value: 1 pA input bias current prevents electrode polarization; CMOS inputs reject triboelectric noise in flexible PCB environments.

Smart Meter Current Sensing

Industrial RTD Signal Chain

Use Scenario: Amplifying mV-level shunt voltage in battery-backed utility meters operating continuously for 10+ years.

IC Role / Device Role / Timing Role: Precision, low-drift gain stage preceding sigma-delta ADC with integrated PGA.

Use Value: 2 µV/°C offset drift ensures <0.1% measurement error over –25°C to +70°C ambient range without recalibration.

Use Scenario: Linearizing and amplifying Pt100 RTD bridge outputs in programmable logic controller (PLC) analog input modules.

IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with matched dual channels for ratiometric sensing.

Use Value: Dual-channel matching (≤0.5 mV inter-channel offset) enables precise 4-wire RTD excitation and sensing separation.

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
TLC27L2CDR	TI part with 10 µA I_CC, but 2 mV max V_IO (C grade) and no guaranteed 0.25 mV option	Lacks tight offset binning; less suitable for uncalibrated DC measurement systems	Select when cost sensitivity outweighs need for sub-millivolt DC accuracy
LPV521MG/NOPB	TI nano-power op-amp: 320 nA I_CC, but only 10 kHz GBW and 10 mV V_IO max	Better for ultra-low-power sleep-mode wake-up amplifiers, not for active-sensing bandwidth	Choose only if system duty cycle is <0.1% and signal bandwidth <1 kHz

Compared with TLC27L2CDR and LPV521MG/NOPB, TS27L2CD uniquely balances 10 µA supply current, 0.25 mV guaranteed offset, and 100 kHz usable bandwidth-making it optimal for always-on, calibrated, single-supply sensor interfaces where accuracy and stability are non-negotiable.

Availability

TS27L2CD is available at Aetrix Electronics and suitable for portable medical devices, smart utility meters, and industrial condition-monitoring sensors requiring stable component supply with guaranteed long-term availability and consistent parametric performance.

Supply support for TS27L2CD 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 sensor solutions for industrial, automotive, and consumer markets.

The TS27L2 series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in battery-operated and energy-constrained systems.

FAQ

Can TS27L2CD operate from a 3 V coin cell without performance degradation?

Yes. TS27L2CD is fully specified from 3 V to 16 V supply. At 3 V, it maintains 10 µA supply current, rail-to-ground output swing, and 0.25 mV max input offset voltage (TS27L2C grade). Output voltage swing remains functional down to V_CC – 1.2 V, delivering usable headroom for 3 V ADC references.

Does TS27L2CD require external compensation for stability?

No. TS27L2CD is internally compensated and stable at unity gain with capacitive loads up to 100 pF, as verified by ≥45° phase margin in Figure 8 of the datasheet. No external compensation capacitor is needed-even when driving typical ADC input capacitance (10–30 pF) or long PCB traces.

What is the maximum allowable common-mode voltage when using single 5 V supply?

With V_CC+ = 5 V, the common-mode input voltage range is 0 V to 3.5 V (V_CC+ – 1.5 V), per the "Vicm" specification on page 3. Inputs below 0 V or above 3.5 V violate absolute maximum ratings and may cause phase reversal or increased input bias current.

How does TS27L2CD's input offset voltage drift compare to JFET-input op-amps?

TS27L2CD exhibits ≤2 µV/°C input offset drift, significantly lower than typical JFET-input op-amps (e.g., TL072: ~10 µV/°C). This is due to CMOS input stage thermal stability, as confirmed in Figure 2 of the datasheet showing flat I_IB vs. temperature curve-critical for uncalibrated, wide-temperature deployments.

TS27L2CD Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tube

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:: 1.1 mV

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

TS27L2CD FAQ

1.How can I place an order for TS27L2CD through Aetrix?

Please submit a Request for Quotation (RFQ) for TS27L2CD 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 TS27L2CD reliable?

The price and inventory of TS27L2CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27L2CD is usually 5 days.

3.What payment methods are accepted for TS27L2CD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27L2CD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS27L2CD?

TS27L2CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS27L2CD 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 TS27L2CD?

For technical support, including TS27L2CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27L2CD requirements.

6.How does Aetrix verify that TS27L2CD is sourced from the original manufacturer or authorized distributors?

All TS27L2CD 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 TS27L2CD meets industry standards.

7.What is the process for return or replacement of TS27L2CD?

All TS27L2CD units undergo pre-shipment inspection (PSI). If there is an issue with TS27L2CD, 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 TS27L2CD part is unused and in its original packaging.

Return procedure for TS27L2CD:

1.Submit a request within 90 days.

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

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