STMicroelectronics TS27L2IPT

Overview

TS27L2IPT from STMicroelectronics is a precision, very low power CMOS dual operational amplifier operating from 3 V to 16 V single supply or ±1.5 V to ±8 V dual supply, featuring 10 µA per amplifier quiescent current, 0.25 mV max input offset voltage (TS27L2B grade), 65–80 dB common-mode rejection, and rail-to-ground output swing. It is used in battery-powered sensor signal conditioning, portable medical instrumentation, and low-power data acquisition front-ends.

For engineers reviewing the TS27L2IPT datasheet, TS27L2IPT pinout, TS27L2IPT application, or TS27L2IPT equivalent, key selection criteria include guaranteed low input bias current (<1 pA typ.), stable operation with capacitive loads up to 100 pF, phase margin ≥45°, and TSSOP8 packaging for space-constrained PCB layouts.

Technical Context

This dual op-amp uses ST's silicon-gate CMOS process to achieve ultra-low input bias current and minimal drift over temperature-critical for high-impedance sensor interfaces. Its architecture includes a two-stage transconductance amplifier with internal frequency compensation optimized for unity-gain stability with 100 pF load.

The device supports rail-to-ground output swing and operates with common-mode input voltage range extending to V_CC − 1.5 V, enabling direct interfacing with microcontroller ADCs and low-voltage logic. Input offset voltage is factory-trimmed across three grades (C/I/M) to meet precision requirements without external nulling.

Key Specifications

Pinout & Package

TS27L2IPT is supplied in an 8-pin Thin Shrink Small Outline Package (TSSOP8), measuring 3.0 mm × 4.4 mm × 1.05 mm, with 0.65 mm lead pitch and exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2462IDR and LPV521MG/NOPB, TS27L2IPT uniquely balances 10 µA quiescent current, 0.25 mV offset, and 100 kHz GBW-making it optimal for mid-tier battery-operated precision analog where speed and power must coexist.

Availability

TS27L2IPT is available at Aetrix Electronics and suitable for portable medical devices, IoT environmental sensor nodes, industrial thermistor interfaces, and low-voltage data loggers requiring stable component supply across extended product lifecycles.

Supply support for TS27L2IPT 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 automotive, industrial, and consumer markets.

The TS27L2 series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-input-impedance signal conditioning in battery-constrained and high-reliability applications.

FAQ

What is the maximum capacitive load the TS27L2IPT can drive while remaining stable?

The TS27L2IPT is characterized for stable operation with up to 100 pF capacitive load at unity gain, maintaining ≥45° phase margin per the datasheet Figure 8. Driving larger loads requires external isolation resistor (e.g., 10–100 Ω in series with output) to preserve stability without degrading DC accuracy.

Does the TS27L2IPT support true rail-to-rail input common-mode range?

No. The input common-mode voltage range is specified as 0 V to V_CC − 1.5 V. It does not include the positive rail, so inputs must remain at least 1.5 V below V_CC. However, the output swings fully to ground and within 0.2 V of V_CC, enabling effective single-supply operation with appropriate biasing.

How does the TS27L2IPT's input offset voltage compare across temperature?

The TS27L2IPT (I-grade) guarantees input offset voltage ≤5 mV over −40°C to +125°C, with typical drift of 2 µV/°C. This low drift-enabled by CMOS process and trimming-ensures minimal calibration burden in automotive or industrial environments where ambient temperature varies widely.

Can the TS27L2IPT be used in dual-supply configurations?

Yes. The device supports dual supplies from ±1.5 V to ±8 V (total supply ≤16 V). Pin 4 remains ground reference, while V_CC+ (Pin 8) and V_CC− (Pin 4) are used as positive and negative rails respectively-enabling bipolar signal handling in precision instrumentation without level-shifting circuitry.