STMicroelectronics TSV792IST

Overview

TSV792IST 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 TSV792IST datasheet, TSV792IST pinout, TSV792IST application, or TSV792IST equivalent, this device supports critical design tasks including A/D converter input buffering, solar power management, and high-frequency sensor signal conditioning where low noise (6.5 nV/√Hz @ 10 kHz), wide temperature range (–40 °C to +125 °C), and unity-gain stability are essential.

Technical Context

The TSV792IST integrates two independent, fully matched op-amp channels with rail-to-rail input stages featuring dual transistor pairs-enabling operation from VCC− − 0.1 V to VCC+ + 0.1 V common-mode range. Its precision is optimized over the low-pair region (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 53° phase margin into 10 kΩ load and tolerates up to 1 nF capacitive load at the output. The architecture supports stable operation across full supply range (2.2–5.5 V) and extended temperature (–40 °C to +125 °C), with guaranteed performance at 22 pF load per channel as specified in DS13480 Rev 7.

Key Specifications

Pinout & Package

TSV792IST is housed in an 8-pin MiniSO package (3.9 mm × 4.9 mm, 1.75 mm height) with exposed pad connected to VCC− for thermal and noise performance. Pin numbering follows standard SO8 top-view orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSZ182 and TSB7192, TSV792IST uniquely balances 50 MHz bandwidth, 200 µV max offset, rail-to-rail I/O, and AEC-Q100 Grade 1 qualification - making it the only option among the three for high-speed, high-accuracy, automotive-qualified dual op-amp applications below 5.5 V.

Availability

TSV792IST is available at Aetrix Electronics and suitable for automotive powertrain monitoring, solar microinverter signal conditioning, and industrial PLC analog input modules requiring stable component supply across extended temperature and long product lifecycles.

Supply support for TSV792IST 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 demanding signal-chain applications in automotive ADAS, battery management, and renewable energy systems where bandwidth, accuracy, and robustness must coexist.

FAQ

What is the maximum capacitive load the TSV792IST can drive while remaining stable?

The TSV792IST is fully specified and stable driving up to 1 nF capacitive load, with guaranteed phase margin of 53° into 10 kΩ resistive load. For loads >22 pF, layout best practices (short traces, local decoupling, ground plane) are required to maintain stability; no external compensation is needed for typical ADC input buffering.

Does the TSV792IST require external compensation for unity-gain operation?

No - the TSV792IST is unity-gain stable by design, with internal compensation ensuring ≥53° phase margin at all supply voltages (2.2–5.5 V) and temperatures (–40 °C to +125 °C). It meets stability requirements without external components when driving ≥22 pF load, as verified in DS13480 Rev 7 Figure 25–26.

How does the dual-input-pair architecture affect common-mode rejection in precision applications?

The dual-input-pair structure enables rail-to-rail input operation but introduces a transition region near VCC+ − 1.4 V where CMRR drops to ~76 dB. For highest accuracy, operation should be confined to the low-pair region (VCC− − 0.1 V to VCC+ − 2 V), where CMRR remains ≥100 dB and input offset drift stays ≤ ±5 µV/°C - as confirmed in Figures 11–13 of DS13480.

Can unused channels on the TSV792IST be left floating?

No - unused channels must be configured to prevent oscillation and increased supply current. ST recommends either a unity-gain buffer (IN+ tied to mid-supply, IN− to OUT) or comparator mode (IN+ and IN− held ≥100 mV apart). Leaving pins unconnected risks instability that degrades performance of the active channel and increases ICC by up to 2×, per Section 5.4 of DS13480.