STMicroelectronics TSV852AIYDT

Overview

TSV852AIYDT from STMicroelectronics is a dual-channel, rail-to-rail output, low-power operational amplifier with shutdown functionality, designed for precision signal conditioning in space-constrained automotive and portable 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.

For engineers reviewing the TSV852AIYDT datasheet, TSV852AIYDT pinout, TSV852AIYDT application, or TSV852AIYDT equivalent, key selection criteria include shutdown-enabled power gating, rail-to-rail output swing under light load (≤180 mV from rails), low offset drift (1 µV/°C), extended temperature qualification, and SC70-5 package compatibility for high-density PCB layouts.

Technical Context

The TSV852AIYDT integrates two independent amplifiers with individual shutdown control (SHDN1/SHDN2 pins), enabling selective channel disablement to reduce system quiescent current to ≤50 nA per channel. Its input stage supports common-mode voltage down to VCC– – 0.2 V, eliminating need for level-shifting in single-supply sensor interfaces.

It employs a CMOS input architecture delivering 0.5–30 nA input offset current and achieves stable unity-gain operation with capacitive loads up to 200 pF, validated by 60° phase margin and 10 dB gain margin - critical for active filtering and medical front-end designs requiring low noise (30 nV/√Hz at 1 kHz) and <0.002% THD+N.

Key Specifications

Pinout & Package

TSV852AIYDT is housed in a 5-pin SC70-5 (SOT323-5) package - a 2.0 mm × 1.25 mm surface-mount outline with 0.65 mm pitch, optimized for high-density PCBs and automated assembly. The exposed pad is not electrically connected and may be left floating or grounded for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV852IYDT, the TSV852AIYDT adds critical shutdown control and halves input offset voltage - essential for low-power, high-accuracy applications. Versus LMV822IDGKR, it trades bandwidth for automotive qualification, lower power, smaller footprint, and integrated power gating - making it superior for embedded sensor nodes where efficiency and reliability dominate.

Availability

TSV852AIYDT is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical devices, and industrial sensor transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV852AIYDT 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, specializing in automotive, industrial, and power management ICs with strong emphasis on functional safety and environmental compliance.

The TSV85x series belongs to ST's precision analog portfolio, engineered specifically for low-power, high-accuracy signal conditioning in harsh environments - targeting automotive sensor interfaces, portable instrumentation, and energy-efficient industrial monitoring.

FAQ

What is the maximum capacitive load the TSV852AIYDT can drive while maintaining stability?

The TSV852AIYDT maintains ≥60° phase margin and stable unity-gain operation with capacitive loads up to 200 pF when driving a 50 kΩ resistive load, as verified in Figure 9 of the datasheet. For loads exceeding 200 pF, external isolation resistance (e.g., 10–50 Ω in series with the output) is required to prevent peaking or oscillation.

Does the SC70-5 package of TSV852AIYDT include an exposed thermal pad?

No - the SC70-5 (SOT323-5) package used for TSV852AIYDT does not feature an exposed thermal pad. Its thermal resistance junction-to-ambient is 205 °C/W (typical), and PCB layout should prioritize 10 nF local decoupling at VCC+ and minimize trace inductance to manage self-heating under continuous 35 mA output current.

Can the shutdown pin be left unconnected or tied to a microcontroller GPIO?

The SHDN pin must never be left floating. It must be actively driven to VCC+ (to enable) or VCC– (to disable). A microcontroller GPIO configured as push-pull output is fully compatible, provided its logic thresholds meet VIH ≥ VCC– + 0.5 V and VIL ≤ 0.5 V - satisfied by standard 3.3 V or 5 V I/O.

How does the input common-mode range support single-supply operation with grounded sensors?

The TSV852AIYDT accepts input voltages from VCC– – 0.2 V to VCC+ – 1 V. With VCC– = 0 V (ground), this allows inputs down to –0.2 V - accommodating small negative transients from grounded resistive sensors or bridge circuits without clipping or phase reversal, simplifying single-supply front-end design.