STMicroelectronics TS27L4AIDT

Overview

TS27L4AIDT from STMicroelectronics is a very low power precision CMOS quad operational amplifier with 10 µA/op supply current, rail-to-ground output swing, unity-gain stability, and ±18 V differential input voltage rating. It operates from 3 V to 16 V single supply and delivers 0.04 V/µs slew rate and 0.1 MHz gain-bandwidth product-ideal for battery-powered sensor signal conditioning in portable instrumentation.

For engineers reviewing the TS27L4AIDT datasheet, TS27L4AIDT pinout, TS27L4AIDT application, or TS27L4AIDT equivalent, key selection criteria include ultra-low quiescent current, input offset voltage ≤6.5 mV (max), common-mode input range extending to ground, and guaranteed operation over –40°C to +125°C industrial temperature range.

Technical Context

The TS27L4AIDT integrates four independent CMOS op-amps on a single die using ST's silicon gate process, achieving 1 pA typical input bias current and <2 µV/°C offset drift. Its internal architecture features high-impedance differential inputs, second-stage amplification, and class-AB output stage optimized for capacitive load stability.

It supports single-supply operation with common-mode input range from 0 V to V_CC–1.5 V and output swing to ground (0 V) with 50 mV low-level saturation. Phase margin remains ≥45° across 0–100 pF capacitive loads and 3–16 V supply voltages, enabling robust performance in unbuffered sensor interfaces.

Key Specifications

Pinout & Package

TS27L4AIDT is supplied in SO-14 (plastic micropackage) with 1.27 mm pitch, 8.55–8.75 mm body length, and ECOPACK® RoHS-compliant construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2464AIPW and LMV324IDR, TS27L4AIDT uniquely balances ultra-low power (10 µA), industrial temperature range (–40°C to +125°C), and guaranteed capacitive-load stability-making it optimal for long-life, harsh-environment analog signal chains where power and reliability are co-prioritized.

Availability

TS27L4AIDT is available at Aetrix Electronics and suitable for portable instrumentation, industrial process controllers, medical wearables, and smart energy meters requiring stable component supply across extended temperature ranges and multi-year field deployment.

Supply support for TS27L4AIDT 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, power ICs, sensors, and analog components 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 constrained systems where input bias current, supply current, and temperature stability are critical.

FAQ

Can TS27L4AIDT operate from a single 3.3 V supply?

Yes. TS27L4AIDT is fully specified for single-supply operation from 3 V to 16 V. At V_CC = 3.3 V, it maintains 0 V to ~2.1 V output swing, 10 µA supply current per amplifier, and functional common-mode input range from 0 V to 1.8 V. Input offset voltage remains within 6.5 mV max across temperature, making it viable for low-voltage IoT sensor nodes.

Does TS27L4AIDT require external compensation for unity-gain stability?

No. TS27L4AIDT is internally compensated for unity-gain stability and guarantees ≥45° phase margin with up to 100 pF capacitive load at all supply voltages (3–16 V) and temperatures (–40°C to +125°C). No external compensation capacitor is needed, simplifying design for sensor interfaces with long traces or unshielded cables.

How does TS27L4AIDT handle input overvoltage beyond absolute maximum ratings?

TS27L4AIDT includes ESD protection diodes rated for ±1 kV HBM and 1.5 kV CDM. However, sustained input voltages exceeding ±18 V differential or –0.3 V to +18 V common-mode will forward-bias internal junctions, causing latch-up or permanent damage. External clamping (e.g., series resistors + Schottky diodes to rails) is required for overvoltage-prone industrial inputs.

Is the TS27L4AIDT pinout compatible with standard quad op-amp footprints like SO-14?

Yes. TS27L4AIDT uses industry-standard SO-14 pinout (per JEDEC MS-012), matching pin-for-pin with LM324, TL074, and other common quad op-amps. Pin 1 is inverting input of Amp A, Pin 4 is GND, Pin 8 is output of Amp C, Pin 11 is V_CC+, and Pin 14 is output of Amp D-enabling drop-in replacement in existing layouts without redesign.