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

STMicroelectronics TS27L2CPT

Name: TS27L2CPT
Brand: STMicroelectronics
SKU: TS27L2CPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS27L2CPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: TS27L2CPT.pdf

Description:: IC CMOS 2 CIRCUIT 8TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS27L2CPT from STMicroelectronics is a precision, very low power CMOS dual operational amplifier in TSSOP-8 package, designed for single-supply operation (3–16 V), featuring 10 µA per amplifier supply current, 0.25 mV max input offset voltage (TS27L2C grade), and rail-to-ground output swing. It delivers stable performance into capacitive loads with 45° phase margin and supports battery-powered sensor interfaces and portable instrumentation.

For engineers reviewing the TS27L2CPT datasheet, TS27L2CPT pinout, TS27L2CPT application, or TS27L2CPT equivalent, key selection criteria include ultra-low ICC (10 µA/amp), guaranteed VIO ≤ 0.25 mV at +25°C, CMOS input bias current <1 pA, and TSSOP-8 thermal and board-space advantages over DIP/SO packages.

Technical Context

This dual op-amp uses ST's silicon-gate CMOS process to achieve exceptional input impedance (>10¹² Ω) and near-zero input bias current drift over temperature-critical for high-impedance transducer signal conditioning. Its two-stage architecture includes current-source-loaded differential input and class-A output stage, enabling stable unity-gain operation with ≥100 pF capacitive load.

The device operates across 3–16 V supply range with common-mode input range extending to ground and output swing to within 50 mV of ground. It achieves 0.04 V/µs slew rate and 0.1 MHz gain-bandwidth product-optimized for DC-coupled, low-frequency precision tasks rather than wideband signal processing.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Current (per amp)	10 µA - Enables multi-year battery life in always-on sensor nodes
Input Offset Voltage (max)	0.25 mV - Ensures ≤250 µV DC error without trimming in 10-bit systems
Input Bias Current (max)	1 pA - Supports >1 GΩ source impedances without significant voltage drop
Common-Mode Input Range	0 V to V_CC − 1.5 V - Allows direct interface to grounded sensors and single-supply ADC drivers
Output Swing (low)	50 mV above ground - Permits true ground-referenced output in 3.3 V/5 V systems
Phase Margin	45° with 100 pF load - Guarantees stability without external compensation in buffered configurations
Gain-Bandwidth Product	0.1 MHz - Sufficient for <10 kHz closed-loop applications like thermocouple amplification

Pinout & Package

TSSOP-8 (Thin Shrink Small Outline Package), 3.0 mm × 4.4 mm footprint, 0.65 mm pitch, 1.2 mm height - optimized for space-constrained PCB layouts and automated assembly.

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Low-impedance buffered output capable of sinking 45 mA and sourcing 60 mA
2	Inverting Input 1	High-impedance CMOS node; bias current <1 pA enables passive RC filtering without loading
3	Non-inverting Input 1	Matched to Pin 2 for balanced input stage; offset voltage trimmed across both inputs
4	V_CC− (Ground)	Reference return path for both amplifiers; must be low-impedance for noise immunity
5	Non-inverting Input 2	Independent high-Z input for second channel; electrically isolated from Channel 1
6	Inverting Input 2	Complementary input to Pin 5; matched offset and bias characteristics with Pin 2
7	Output 2	Fully independent output stage; channel separation >120 dB prevents crosstalk in dual-sensor systems
8	V_CC+	Positive supply rail; supports 3–16 V operation; decoupling capacitor required at pin

Key Features

Feature	Design Value
Ultra-low quiescent current	10 µA per amplifier - reduces system standby power by >90% vs. bipolar op-amps
Rail-to-ground output	50 mV min. sink capability - eliminates need for negative rail in single-supply transducer interfaces
Three offset voltage grades	C-grade (0.25 mV max) enables cost-sensitive precision without external trimming
Capacitive-load stability	Stable with ≥100 pF load - removes need for isolation resistors in driving ADC input filters
CMOS input stage	Input bias current <1 pA - preserves accuracy in pH electrodes, photodiode, and piezoelectric sensor front-ends

Applications

Portable Gas Sensor Interface

Medical ECG Front-End

Use Scenario: Amplifying microvolt-level signals from electrochemical gas sensors powered by coin-cell batteries.

IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier stage with one channel for sensor signal and one for reference compensation.

Use Value: 10 µA supply current extends battery life beyond 5 years; rail-to-ground output enables direct connection to 12-bit SAR ADC with no level-shifting.

Use Scenario: Low-noise, low-power amplification of biopotential signals in wearable ECG patches.

IC Role / Device Role / Timing Role: First-stage gain and filtering for differential lead-off detection and signal conditioning before analog front-end ASIC.

Use Value: 1 pA input bias current prevents electrode polarization errors; 0.25 mV V_IO ensures baseline stability without calibration during 24-hour monitoring.

Smart Meter Current Sensing

Industrial Temperature Transmitter

Use Scenario: Isolated shunt-based current measurement in battery-backed utility meters with 10-year field life.

IC Role / Device Role / Timing Role: Precision low-side current sense amplifier with integrated offset correction via dual-op-amp topology.

Use Value: Matched input offset (≤0.25 mV) minimizes gain error across temperature; TSSOP-8 footprint fits tight meter PCB real estate.

Use Scenario: Conditioning RTD or thermistor outputs in loop-powered 4–20 mA transmitters operating on 24 V supply.

IC Role / Device Role / Timing Role: Bridge excitation buffer and linearization amplifier in analog signal chain prior to voltage-to-current conversion.

Use Value: Stable 45° phase margin ensures immunity to long cable capacitance; 3–16 V operation accommodates brownout conditions down to 3.3 V.

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 (550 µA/amp), lower VIO (0.15 mV typ), SO-8 only	Better DC accuracy but 55× higher supply current limits battery use	Select when precision outweighs power budget; avoid in energy-harvesting designs
LPV521MG/NOPB	Lower ICC (320 nA/amp), higher VIO (1.25 mV max), SC70-5 single-channel	Ultra-low power ideal for intermittent wake-up sensing, but no dual-channel integration	Choose for lowest possible sleep current; requires two devices and extra routing for dual-signal paths

Compared with TLV2462IDR and LPV521MG/NOPB, TS27L2CPT uniquely balances sub-10-µA consumption, dual-channel integration, and ≤0.25 mV offset in a compact TSSOP-8-making it optimal for space- and energy-constrained dual-sensor systems where moderate bandwidth suffices.

Availability

TS27L2CPT is available at Aetrix Electronics and suitable for portable medical devices, smart utility meters, battery-powered environmental sensors, and industrial loop-powered transmitters requiring stable component supply and long-term manufacturability.

Supply support for TS27L2CPT 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, delivering intelligent power, sensing, and control solutions across automotive, industrial, and consumer markets.

TS27L2CPT belongs to ST's legacy precision analog portfolio, engineered specifically for ultra-low-power, high-input-impedance signal conditioning in battery-operated and energy-sensitive instrumentation applications.

FAQ

What is the maximum capacitive load the TS27L2CPT can drive while remaining stable?

The TS27L2CPT maintains ≥45° phase margin with up to 100 pF capacitive load at unity gain, as verified in Figure 8 of the datasheet. For loads exceeding 100 pF, a series isolation resistor (≥100 Ω) between output and capacitance is recommended to preserve stability without degrading DC accuracy.

Does TS27L2CPT support rail-to-rail input or output?

TS27L2CPT supports rail-to-ground output (down to 50 mV above V_CC−) but not rail-to-rail input: its common-mode input range extends from ground to V_CC − 1.5 V. This allows full utilization of the lower input voltage range but excludes signals near V_CC without attenuation or level shifting.

How does the TS27L2C grade differ from TS27L2I or TS27L2M?

TS27L2C specifies 0°C to +70°C operation and 0.25 mV max input offset voltage at +25°C; TS27L2I extends temperature to −40°C to +125°C with same VIO spec; TS27L2M offers higher speed (150 µA/amp ICC) and looser VIO (2 mV max), targeting cost-sensitive industrial applications over precision battery use.

Can TS27L2CPT operate from a 3.3 V supply?

Yes-TS27L2CPT is fully specified from 3 V to 16 V supply. At 3.3 V, it delivers 50 mV output low voltage, 8.8 V high-level output (at V_CC = 10 V), and retains all key specs including 10 µA ICC and 0.25 mV VIO, making it suitable for modern low-voltage IoT sensor nodes.

TS27L2CPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm 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:: 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-TSSOP

TS27L2CPT FAQ

1.How can I place an order for TS27L2CPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS27L2CPT 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 TS27L2CPT reliable?

The price and inventory of TS27L2CPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27L2CPT is usually 5 days.

3.What payment methods are accepted for TS27L2CPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27L2CPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS27L2CPT?

TS27L2CPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS27L2CPT 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 TS27L2CPT?

For technical support, including TS27L2CPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27L2CPT requirements.

6.How does Aetrix verify that TS27L2CPT is sourced from the original manufacturer or authorized distributors?

All TS27L2CPT 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 TS27L2CPT meets industry standards.

7.What is the process for return or replacement of TS27L2CPT?

All TS27L2CPT units undergo pre-shipment inspection (PSI). If there is an issue with TS27L2CPT, 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 TS27L2CPT part is unused and in its original packaging.

Return procedure for TS27L2CPT:

1.Submit a request within 90 days.

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

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