STMicroelectronics TSV792IYST

Overview

TSV792IYST 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 over –40 °C to +125 °C - enabling accurate low-side current sensing and photodiode transimpedance amplification.

For engineers reviewing the TSV792IYST datasheet, TSV792IYST pinout, TSV792IYST application, or TSV792IYST equivalent, this device supports A/D converter input buffering, solar power management, and automotive battery monitoring where low noise (6.5 nV/√Hz @ 10 kHz), unity-gain stability, and extended temperature operation are critical selection criteria.

Technical Context

The TSV792 employs a dual-input-stage architecture with rail-to-rail common-mode range (VCC– – 0.1 V to VCC+ + 0.1 V), featuring two complementary transistor pairs that transition near VCC+ – 1.4 V. Precision performance is optimized on the low-pair segment (VCC– – 0.1 V to VCC+ – 2 V), where CMRR exceeds 100 dB and input offset drift remains ≤ ±5 µV/°C.

It achieves unity-gain stability with capacitive loads up to 1 nF and is fully characterized at 22 pF load; phase margin is 53° (RL = 10 kΩ) and improves to 69° at 2.2 V supply. EMI rejection is enhanced via internal RF filtering, with measured EMIRR > 60 dB across 400 MHz–2.4 GHz on both inputs and output.

Key Specifications

Pinout & Package

TSV792IYST is packaged in MiniSO-8 (SO8), an 8-pin surface-mount package with exposed pad (not electrically connected). Pin functions are validated per DS13480 Rev 7 (p.3).

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, TSV792IYST uniquely balances 50 MHz bandwidth, 200 µV Vos, and 1 pA input bias in a 5.5 V domain - making it the only option among the three viable for simultaneous high-speed, high-accuracy, low-power signal conditioning in automotive and solar systems.

Availability

TSV792IYST is available at Aetrix Electronics and suitable for automotive battery monitoring, solar charge controllers, and industrial motor drive current sensing requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSV792IYST 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 microcontrollers, analog ICs, power devices, and sensors for automotive, industrial, and consumer markets.

The TSV79x series belongs to ST's precision high-speed op amp product line, engineered specifically for accuracy-critical signal conditioning in energy-efficient, thermally constrained, and safety-relevant applications such as EV battery management and ADAS subsystems.

FAQ

What is the maximum capacitive load the TSV792IYST can drive while maintaining stability?

TSV792IYST is fully specified for stability with up to 1 nF capacitive load and guaranteed stable with 22 pF minimum load. Phase margin remains ≥53° at 10 kΩ load and improves to 69° at 2.2 V supply. For loads >100 pF, layout best practices (short traces, local decoupling) are recommended to preserve bandwidth and settling behavior.

Does TSV792IYST require external compensation for unity-gain operation?

No external compensation is required. TSV792IYST is internally compensated for unity-gain stability across its full 2.2–5.5 V supply range and –40 °C to +125 °C temperature range. The 50 MHz gain bandwidth product and 30 V/µs slew rate are specified under unity-gain conditions with 22 pF load and 10 kΩ feedback.

How does the dual-input-stage architecture affect common-mode rejection in TSV792IYST?

The dual-input-stage design transitions near VCC+ – 1.4 V; CMRR exceeds 100 dB in the low-pair region (VCC– – 0.1 V to VCC+ – 2 V) but degrades near the transition zone. For optimal accuracy, bias common-mode voltage within the low-pair range - e.g., set Vicm = 1.0 V on a 3.3 V rail - avoiding operation within ±200 mV of the transition point.

Can unused op amp channels in TSV792IYST be left floating?

No. Unused channels must be configured to prevent oscillation and excess current draw. ST recommends either: (1) unity-gain buffer (output tied to IN+, IN– to defined voltage within Vicm range), or (2) comparator mode (IN+ and IN– biased ≥100 mV apart). Leaving inputs or outputs unconnected risks instability and increased ICC.