STMicroelectronics TSV792IQ2T

Overview

TSV792IQ2T from STMicroelectronics is a dual, rail-to-rail input/output operational amplifier optimized for high-precision, high-bandwidth signal conditioning in automotive and industrial power management systems. It delivers 50 MHz gain bandwidth, 30 V/µs slew rate, 200 µV max input offset voltage, 1 pA typ. input bias current, and operates from 2.2 V to 5.5 V supply - enabling accurate low-side current sensing and photodiode transimpedance amplification.

For engineers reviewing the TSV792IQ2T datasheet, TSV792IQ2T pinout, TSV792IQ2T application, or TSV792IQ2T equivalent, this device supports demanding A/D converter input buffering, solar power management, and automotive-grade current monitoring where low noise (6.5 nV/√Hz @ 10 kHz), extended temperature operation (–40 °C to +125 °C), and unity-gain stability are critical.

Technical Context

The TSV792IQ2T integrates two independent high-speed amplifiers sharing a common 2.2–5.5 V supply, each featuring dual-input transistor pairs for full rail-to-rail common-mode range (VCC− −0.1 V to VCC+ +0.1 V) with precision optimized below VCC+ −2 V. Its 53° phase margin ensures stable unity-gain operation into 22 pF loads.

It achieves 126 dB crosstalk rejection at 1 kHz and maintains ≥90 dB CMRR across –40 °C to +125 °C, supporting simultaneous channel operation in noisy environments. Input voltage noise remains ≤15 nV/√Hz down to 2.2 V supply, and output drive capability reaches ±63 mA at 3.3 V with <40 mV saturation voltage swing.

Key Specifications

Pinout & Package

TSV792IQ2T is housed in an 8-pin MiniSO (SO8) package with exposed pad, pin-compatible with industry-standard SOIC-8 footprints. The exposed thermal pad may be connected to VCC− or left floating per layout requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-bandwidth, low-offset operational amplifier applications.

Compared with TSZ182 and TSB7192, TSV792IQ2T uniquely balances 50 MHz bandwidth, 200 µV max offset, 1 pA bias current, and 2.2–5.5 V operation - making it the only option among the three qualified for automotive-grade, low-voltage, high-fidelity current and photodiode signal conditioning.

Availability

TSV792IQ2T is available at Aetrix Electronics and suitable for automotive power monitoring, solar charge controller signal chains, and industrial ADC front-ends requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSV792IQ2T 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 TSV79x series belongs to ST's precision high-speed op-amp product line, engineered specifically for accurate, wide-bandwidth signal conditioning in battery-powered, automotive, and energy-harvesting systems operating from low-voltage rails.

FAQ

What is the maximum capacitive load the TSV792IQ2T can drive while maintaining stability?

The TSV792IQ2T is fully specified and stable driving up to 1 nF capacitive load, with guaranteed phase margin ≥53° into 22 pF. For loads >100 pF, adding a small series resistor (10–50 Ω) between output and load improves stability without degrading bandwidth significantly. Layout best practices include short traces and local decoupling near VCC+ and VCC− pins.

Can unused op-amp channels be left floating?

No - unused channels must be configured to avoid oscillation and increased supply current. ST recommends either a unity-gain buffer (IN+ tied to mid-supply, IN− to OUT) or open-loop comparator mode (IN+ and IN− biased ≥100 mV apart). Leaving inputs unconnected risks instability that couples into active channels and degrades system accuracy.

Does the TSV792IQ2T support single-supply operation with ground-referenced inputs?

Yes - its rail-to-rail input stage operates from VCC− −0.1 V to VCC+ +0.1 V, allowing true ground-referenced input signals when VCC− = 0 V. At 2.2 V supply, common-mode range extends from –0.1 V to +2.3 V, enabling direct interface with sensors and ADCs referenced to system ground without level-shifting circuitry.

How does EMI immunity perform in automotive environments?

The TSV792IQ2T features enhanced EMI rejection ratio (EMIRR) measured from 400 MHz to 2.4 GHz, with <1 µV offset shift under 1 Vpp RF injection. This is achieved via on-die filtering and optimized input pair design. Adding 1–10 pF capacitors on IN+, IN−, and supply pins further suppresses RF rectification effects in noisy engine-bay or infotainment subsystems.