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

STMicroelectronics TS27L4AIPT

Name: TS27L4AIPT
Brand: STMicroelectronics
SKU: TS27L4AIPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS27L4AIPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: TS27L4AIPT.pdf

Description:: IC CMOS 4 CIRCUIT 14TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:3,847

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Product details

Overview

TS27L4AIPT from STMicroelectronics is a very low power precision CMOS quad operational amplifier with 10 µA/op supply current, 0.9 mV max input offset voltage (at −40°C to +125°C), and rail-to-ground output swing. It operates from 3 V to 16 V single supply, features unity-gain stability, and is used in battery-powered sensor signal conditioning and portable medical instrumentation.

For engineers reviewing the TS27L4AIPT datasheet, TS27L4AIPT pinout, TS27L4AIPT application, or TS27L4AIPT equivalent, key selection criteria include ultra-low quiescent current, input offset voltage drift of only 2 µV/°C, capacitive-load stability up to 100 pF, and TSSOP14 packaging for space-constrained PCB layouts.

Technical Context

The TS27L4AIPT integrates four independent CMOS op-amps using ST's silicon gate process, delivering high input impedance (>10¹² Ω) and ultra-low input bias current (1 pA typ at 25°C). Its internal architecture includes a second-stage gain block and optimized output stage enabling stable operation with 100 pF capacitive loads without external compensation.

It supports single-supply operation down to 3 V with common-mode input range extending to ground and output swing within 50 mV of ground. Phase margin remains ≥45° across supply voltages (3–16 V) and load capacitances (0–100 pF), ensuring robust transient response in precision DC-coupled circuits.

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)	0.9 mV over −40°C to +125°C - ensures <0.1% error in 1 V full-scale instrumentation
Input offset drift	2 µV/°C - minimizes thermal-induced baseline drift in wide-temperature industrial sensors
Output swing to ground	50 mV - allows direct interfacing with 0 V–ref ADCs and low-voltage logic without level-shifting
Gain bandwidth product	0.1 MHz - sufficient for anti-aliasing filters and slow-sampling sensor front-ends
Common-mode rejection	65 dB min - rejects noise in single-ended transducer interfaces with shared ground paths
Slew rate	0.04 V/µs - adequate for <1 kHz signal conditioning without distortion

Pinout & Package

TSSOP14 (Thin Shrink Small Outline Package), 4.90–5.10 mm × 6.20–6.60 mm body, 0.65 mm pitch, 1.05 mm max height, RoHS-compliant ECOPACK®.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting input (amp 1)	Differential input node for first op-amp; high-impedance CMOS input
2	Non-inverting input (amp 1)	Reference input for first op-amp; accepts signals down to ground
3	Output (amp 1)	Rail-to-ground output capable of sinking 45 mA and sourcing 60 mA
4	Ground (V_CC−)	Power return reference for all four amplifiers; must be low-impedance
5	Non-inverting input (amp 2)	Second amplifier's positive input; shares same V_CC− reference as pin 4
6	Inverting input (amp 2)	Second amplifier's negative input; matched to pin 1 for common-mode tracking
7	Output (amp 2)	Second independent output; identical drive capability to pin 3
8	V_CC+	Positive supply rail (3–16 V); decoupling capacitor required near this pin
9	Output (amp 3)	Third amplifier output; electrically isolated but thermally coupled to other amps
10	Inverting input (amp 3)	Third amp's inverting node; layout symmetry recommended with pins 1 and 6
11	Non-inverting input (amp 3)	Third amp's non-inverting input; supports common-mode range to V_CC+ − 1.5 V
12	Non-inverting input (amp 4)	Fourth amp's positive input; referenced to same V_CC− and V_CC+ rails
13	Inverting input (amp 4)	Fourth amp's negative input; matches input characteristics of other three channels
14	Output (amp 4)	Final independent output; fully specified for same load and temperature conditions

Key Features

Feature	Design Value
Ultra-low power consumption	10 µA per amplifier enables >10-year coin-cell operation in wireless sensor nodes
Rail-to-ground output	50 mV low-level output swing eliminates need for negative supply in single-supply systems
Capacitive-load stability	Stable with up to 100 pF load without external compensation-reduces BOM count
Low input current drift	2 µV/°C offset drift ensures <1 µV total drift over 50°C ambient change
High channel separation	120 dB inter-channel isolation prevents crosstalk in multi-channel data acquisition

Applications

Portable ECG Front-End

Smart Gas Sensor Signal Chain

Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable heart-rate monitors.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier buffer and anti-aliasing filter driver.

Use Value: 10 µA/quiescent current extends CR2032 battery life beyond 2 years; rail-to-ground output interfaces directly with 0 V–ref SAR ADCs.

Use Scenario: Conditioning low-current outputs (nA–µA) from electrochemical gas sensors in IoT air-quality modules.

IC Role / Device Role / Timing Role: Transimpedance amplifier and offset-compensated DC-level shifter.

Use Value: 1 pA input bias current prevents sensor current measurement error; 0.9 mV max V_io limits calibration frequency to once-per-deployment.

Industrial Temperature Transmitter

Low-Power Data Logger Analog Front-End

Use Scenario: Amplifying and linearizing RTD or thermistor bridge outputs in field-mounted 4–20 mA loop transmitters.

IC Role / Device Role / Timing Role: Precision gain stage and cold-junction compensation buffer.

Use Value: 2 µV/°C offset drift maintains ±0.1°C accuracy over −40°C to +85°C operating range without active recalibration.

Use Scenario: Multiplexed analog signal conditioning for battery-powered environmental monitoring nodes logging temperature, humidity, and light.

IC Role / Device Role / Timing Role: Four-channel simultaneous sensor interface with shared supply and ground.

Use Value: Quad integration reduces PCB area by 60% vs discrete singles; TSSOP14 footprint fits sub-10 cm² sensor modules.

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
TLV2464IPW	22 µA/op supply current; 2.5 mV max V_io; 0.5 V output swing to rail	Higher power and offset limit use in sub-1 µA sensor nodes and <0.5% accuracy systems	Select when higher drive strength (60 mA) and wider GBW (6.4 MHz) justify 2.2× higher I_CC
LPV521MG/NOPB	320 nA/op supply current; 1.25 mV max V_io; rail-to-rail I/O; 10 kHz GBW	Ultra-low power suits energy-harvesting designs but lacks capacitive-load stability beyond 10 pF	Select for nanoamp-battery or piezoelectric-harvested systems where phase margin >60° is not required

Compared with TLV2464IPW and LPV521MG/NOPB, TS27L4AIPT uniquely balances ultra-low 10 µA current, guaranteed 45° phase margin into 100 pF, and −40°C to +125°C operation-making it optimal for automotive cabin sensors and industrial edge nodes where thermal stability and load robustness are non-negotiable.

Availability

TS27L4AIPT is available at Aetrix Electronics and suitable for portable medical devices, smart environmental sensors, industrial temperature transmitters, and low-power data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS27L4AIPT 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 microcontrollers, analog ICs, MEMS, and power devices for industrial, automotive, and consumer markets.

The TS27L4 series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power signal conditioning in battery-operated and thermally demanding environments where long-term offset stability and supply efficiency are critical.

FAQ

Is TS27L4AIPT qualified for automotive applications?

No-TS27L4AIPT is rated for −40°C to +125°C operating temperature but is not AEC-Q100 qualified. It is intended for industrial and commercial applications including harsh-environment sensors and portable instrumentation. For automotive-grade equivalents, ST offers the TSZ12x family with full AEC-Q100 certification and enhanced ESD robustness.

Can TS27L4AIPT drive a 10 kΩ load while maintaining rail-to-ground output?

Yes-TS27L4AIPT guarantees low-level output voltage ≤50 mV at 45 mA sink current, meaning it drives 10 kΩ loads (0.5 mA) with <1 mV drop at ground. The output stage is designed for full rail-to-ground swing under light loads, and Figure 7 in the datasheet confirms <20 mV drop at 1 mA sink current across temperature.

What is the maximum capacitive load for stable unity-gain operation?

The TS27L4AIPT is unity-gain stable with up to 100 pF capacitive load, as verified by ≥45° phase margin in Figure 12 of the datasheet. Beyond 100 pF, external compensation (e.g., series resistor between output and load) is required to maintain stability-no internal compensation network is provided.

Does TS27L4AIPT support dual-supply operation?

Yes-TS27L4AIPT operates with dual supplies ranging from ±1.5 V to ±8 V (total 3–16 V), as confirmed by Table 2's V_CC+ specification and Figure 4's input bias current plot referenced to split supplies. Pin 4 is V_CC−, not ground-only; it must be connected to the negative rail in dual-supply configurations.

TS27L4AIPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: CMOS

Number of Circuits:: 4

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 (x4 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:: 14-TSSOP

TS27L4AIPT FAQ

1.How can I place an order for TS27L4AIPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS27L4AIPT 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 TS27L4AIPT reliable?

The price and inventory of TS27L4AIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS27L4AIPT is usually 5 days.

3.What payment methods are accepted for TS27L4AIPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS27L4AIPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS27L4AIPT?

TS27L4AIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS27L4AIPT 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 TS27L4AIPT?

For technical support, including TS27L4AIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS27L4AIPT requirements.

6.How does Aetrix verify that TS27L4AIPT is sourced from the original manufacturer or authorized distributors?

All TS27L4AIPT 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 TS27L4AIPT meets industry standards.

7.What is the process for return or replacement of TS27L4AIPT?

All TS27L4AIPT units undergo pre-shipment inspection (PSI). If there is an issue with TS27L4AIPT, 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 TS27L4AIPT part is unused and in its original packaging.

Return procedure for TS27L4AIPT:

1.Submit a request within 90 days.

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

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