STMicroelectronics TSV6293AIST

Overview

TSV6293AIST from STMicroelectronics is a dual micropower CMOS operational amplifier in MiniSO-10 package, featuring rail-to-rail input/output, 1.3 MHz gain bandwidth product, 29 µA typical supply current per amplifier, and dual independent shutdown pins. It operates from 1.5 V to 5.5 V and delivers 800 µV max input offset voltage (A-grade), making it suitable for precision sensor signal conditioning in ultra-low-power battery-operated medical and portable instrumentation.

For engineers reviewing the TSV6293AIST datasheet, TSV6293AIST pinout, TSV6293AIST application, or TSV6293AIST equivalent, key selection criteria include its minimum stable gain requirement (+4 non-inverting / –3 inverting), shutdown current of 5 nA typ, EMI-hardened architecture, and guaranteed operation across –40°C to +125°C industrial temperature range.

Technical Context

The TSV6293AIST employs complementary PMOS/NMOS input stages enabling true rail-to-rail input common-mode range (VCC– –0.1 V to VCC+ +0.1 V) and output swing within 35 mV of rails under 10 kΩ load. Its internal current-starved compensation ensures stability only at gains ≥+4 (non-inverting) or ≤–3 (inverting), with phase margin ≥60° at CL = 20 pF and RL = 10 kΩ.

Each amplifier features independent SHDN1/SHDN2 control pins that place the output in high-impedance state when pulled low to VCC–, achieving 5 nA typ shutdown current. The device integrates EMI hardening and 4 kV HBM ESD protection, with input bias current as low as 1 pA typ and input offset drift of just 2 µV/°C.

Key Specifications

Pinout & Package

TSV6293AIST is housed in a 10-pin MiniSO package (ECOPACK® compliant, RoHS-compliant), measuring 3.0 mm × 3.0 mm × 1.05 mm with 0.5 mm pitch. This compact, surface-mount package supports high-density PCB layouts in space-constrained portable devices.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual micropower op-amp applications.

Compared with TSV6293IST, the TSV6293AIST trades 1.4 mV higher max offset for guaranteed 800 µV accuracy - critical for analog front-ends avoiding digital correction. Versus TSV6393IST, it sacrifices 1.1 MHz bandwidth to achieve 31 µA lower quiescent current, extending CR2032 battery life from 3 to >8 years in sleep-dominated sensing cycles.

Availability

TSV6293AIST is available at Aetrix Electronics and suitable for wearable vital sign monitoring, portable gas detection, implantable telemetry, and industrial predictive maintenance requiring stable component supply across automotive-grade temperature ranges and long-lifecycle production.

Supply support for TSV6293AIST 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 silicon solutions for automotive, industrial, and consumer markets since 1987.

The TSV629x series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in battery-constrained medical, portable, and industrial sensing applications.

FAQ

Can TSV6293AIST operate stably at unity gain?

No. The TSV6293AIST is not unity-gain stable and requires minimum closed-loop gain of +4 (non-inverting) or –3 (inverting) to maintain ≥60° phase margin. Attempting unity-gain configuration risks oscillation, especially with capacitive loads. For unity-gain applications, ST recommends the TSV622 or TSV632 families, which are explicitly designed for stability at G = 1.

What is the maximum capacitive load the TSV6293AIST can drive without instability?

The TSV6293AIST is characterized for stability with up to 20 pF capacitive load when used at minimum gain (+4 non-inverting) and 10 kΩ resistive load. Driving >50 pF directly may cause peaking or ringing; for larger loads, add a series isolation resistor (≥100 Ω) between output and capacitance to restore phase margin.

How does the shutdown function affect output state and leakage?

When SHDN1 or SHDN2 is pulled low to VCC−, the corresponding amplifier output enters high-impedance state with ≤1 nA leakage current over –40°C to +125°C. Output voltage floats but remains within rail limits due to internal clamping. The pin must never float - tie unused shutdown pins to VCC+ or VCC− to prevent erratic enable/disable behavior.

Is TSV6293AIST compatible with 1.2 V supply rails?

No. The absolute maximum rating specifies minimum supply voltage of 1.5 V, and all electrical characteristics (including GBP, Vio, and rail-to-rail operation) are guaranteed only from 1.5 V to 5.5 V. Operation below 1.5 V risks undefined behavior, increased offset, and failure to meet rail-to-rail output swing specifications.