STMicroelectronics TSV6290AILT

Overview

TSV6290AILT from STMicroelectronics is a micropower rail-to-rail input/output single operational amplifier with shutdown control, designed for precision signal conditioning in ultra-low-power systems. It operates from 1.5 V to 5.5 V, delivers 1.3 MHz gain bandwidth, consumes only 29 µA typical supply current, and features 800 µV max input offset voltage (A-grade), enabling high-accuracy sensing in battery-powered medical and portable instrumentation.

For engineers reviewing the TSV6290AILT datasheet, TSV6290AILT pinout, TSV6290AILT application, or TSV6290AILT equivalent, key selection criteria include its guaranteed shutdown functionality, 4 kV HBM ESD rating, -40 °C to 125 °C extended temperature operation, and stability requirement at gain ≥4 - critical for low-voltage active filtering and sensor front-end designs.

Technical Context

The TSV6290AILT uses complementary PMOS/NMOS input stages to achieve rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) without phase reversal. Its internal compensation ensures stability only at closed-loop gains ≥4 (or ≤−3), making it unsuitable for unity-gain buffers but optimal for fixed-gain sensor amplification.

It integrates a logic-controlled shutdown pin (SHDN) that reduces supply current to <1.5 µA at 125 °C while placing the output in high-impedance state. Turn-on/turn-off times are specified at 300 ns and 30 ns respectively under 5 kΩ load, supporting rapid power cycling in duty-cycled measurement systems.

Key Specifications

Pinout & Package

SOT23-6 package: 1.45 mm × 2.90 mm × 1.30 mm body, 0.95 mm pitch, lead-free and RoHS-compliant ECOPACK®2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV6290AILT, TSV6290ILT trades 5× higher input offset for lower unit cost, while TSV6291AILT removes shutdown capability to reduce footprint - both require revalidation of DC accuracy and power architecture in precision battery-operated systems.

Availability

TSV6290AILT is available at Aetrix Electronics and suitable for medical instrumentation, portable gas detection, and industrial current-loop receivers requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for TSV6290AILT 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 for automotive, industrial, and consumer markets.

The TSV6290AILT belongs to ST's TSV62x micropower op-amp family, engineered specifically for ultra-low-power, high-precision analog signal conditioning in battery-constrained and thermally demanding environments.

FAQ

What is the minimum stable gain configuration for TSV6290AILT?

The TSV6290AILT is not unity-gain stable and requires a minimum closed-loop gain of +4 (non-inverting) or −3 (inverting) to maintain ≥60° phase margin. This is due to its internal compensation optimized for 1.3 MHz GBP at 29 µA - attempting unity gain causes peaking and potential oscillation, especially with capacitive loads above 20 pF.

Does TSV6290AILT support true rail-to-rail input at 1.5 V supply?

Yes - the input common-mode range extends from (VCC−) −0.1 V to (VCC+) +0.1 V across the full 1.5–5.5 V supply range, verified down to 1.5 V in characterization curves (Figure 18–19). At 1.5 V, the amplifier maintains full rail-to-rail functionality with only minor CMRR degradation near the transition point at ~0.8 V.

How does the shutdown function affect output state and leakage?

When SHDN is pulled low (≤0.5 V), the amplifier disables and its output enters high-impedance state with ≤1 nA leakage current over temperature. The output remains disconnected from internal circuitry - no pull-up/down resistors are active, preventing unintended loading of downstream ADC inputs or filters during sleep.

Can TSV6290AILT drive a 100 kΩ load with 100 pF capacitance?

No - the datasheet specifies stability only with RL ≥ 100 kΩ when CL ≤ 20 pF (for |gain| ≥ 10) or CL ≤ 100 pF when RL ≥ 100 kΩ (for |gain| ≥ 11). Driving 100 pF directly risks instability; a series resistor (≥1 kΩ) or isolation buffer is required to dampen resonance in such configurations.