STMicroelectronics TSV850AILT

Overview

TSV850AILT from STMicroelectronics is a single-channel, rail-to-rail output operational amplifier with shutdown functionality, designed for precision signal conditioning in low-voltage, power-constrained systems. It delivers 1.3 MHz gain bandwidth, 0.8 mV max input offset voltage at 25 °C, 180 µA max supply current per channel at 5 V, and operates from 2.3 V to 5.5 V across –40 °C to +125 °C - enabling use in automotive sensor front-ends and portable medical monitors.

For engineers reviewing the TSV850AILT datasheet, TSV850AILT pinout, TSV850AILT application, or TSV850AILT equivalent, key selection criteria include its 50 nA max shutdown current, SC70-5 package footprint, rail-to-rail output swing (≤180 mV from rails), input common-mode range extending to VCC– – 0.2 V, and AEC-Q100 Grade 1 qualification for automotive environments.

Technical Context

The TSV850AILT implements a CMOS input stage with rail-to-rail output architecture, supporting operation down to 2.3 V while maintaining 70 dB min common-mode rejection ratio and 72 dB min supply voltage rejection ratio at 25 °C. Its shutdown control pin (SHDN) enables deterministic high-impedance output state with 300 ns turn-on time and 20 ns turn-off time under 2 kΩ load.

It features an input offset voltage drift of ≤1 µV/°C over –40 °C to +125 °C and delivers 35 mA sink / 60 mA source output drive capability at 5 V supply, with slew rate of 0.7 V/µs and THD+N of 0.002 % at 1 kHz - optimized for active filtering and battery-powered instrumentation where accuracy and quiescent power coexist.

Key Specifications

Pinout & Package

TSV850AILT is housed in a 5-pin SC70-5 (SOT323-5) package, measuring 2.0 mm × 1.25 mm × 0.9 mm, with exposed pad optional for thermal enhancement. Pin 1 is marked via dot; device orientation follows JEDEC standard top view.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV851AILT, the TSV850AILT adds shutdown control at no cost to accuracy or size; versus LMV821IDBVR, it trades bandwidth for guaranteed automotive operation, nanoamp shutdown, and lower drift - making it optimal for battery longevity and harsh-environment reliability.

Availability

TSV850AILT is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical devices, and industrial battery monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV850AILT 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 analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

The TSV85x series belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in automotive and portable applications where supply headroom and thermal resilience are constrained.

FAQ

What is the maximum capacitive load the TSV850AILT can drive while maintaining stability?

The TSV850AILT remains stable with ≥100 pF capacitive loads in unity-gain configuration, as confirmed by phase margin ≥60° at 100 pF (Figure 11). For loads >200 pF, external isolation resistor (≥100 Ω) between output and capacitor is recommended to prevent peaking or oscillation - verified in application note AN4912.

Can the SHDN pin be driven directly by a 1.8 V GPIO without level shifting?

No. The SHDN pin requires VIH ≥ VCC– + 0.5 V to enable the amplifier. With VCC = 3.3 V, VIH must exceed 0.5 V - so a 1.8 V GPIO meets this threshold only if VCC– = 0 V (ground). However, for reliable operation across temperature, ST recommends driving SHDN from the same supply domain as VCC+ to avoid undefined states during power sequencing.

Does the TSV850AILT support true rail-to-rail input?

No. The TSV850AILT features rail-to-rail *output* but has a limited input common-mode range: VCC– – 0.2 V to VCC+ – 1 V. It does *not* accept inputs at VCC+ (no RRI), but its lower bound extends below ground - enabling single-supply operation with ground-referenced sensors.

How does the input offset voltage distribution affect calibration requirements in production?

Data sheet Figure 3 shows >95% of units exhibit Vio ≤2.5 mV at 5 V and 25 °C. With max 6 mV over –40 °C to +125 °C, one-time factory trim is sufficient for 12-bit systems (LSB = 0.8 mV @ 3.3 V); no in-system calibration is needed for typical automotive or medical applications meeting ±0.5% full-scale accuracy targets.