Precision Low-Noise Op Amp from STMicroelectronics

Article By : STMicroelectronics

Boosts flexibility with extended voltage and temperature ranges

Geneva, Switzerland, July 20, 2018 — The STMicroelectronics TSB712A precision op amp maintains stable parameters over wide voltage and temperature ranges, bringing cost-effective high-end performance to a multitude of applications, including industrial and automotive systems.

Fully specified over a wide supply-voltage range of 2.7V-36V, or ±1.35V to ±18V, the TSB712A is a flexible go-to device for multiple designs that not only simplifies engineering decisions, but also eases purchasing and inventory management. It is specified over the extended temperature range, from -40°C to 125°C, with maximum offset drift of 2.8µV/°C.

With low input voltage noise of 12nV/√Hz, the TSB712A can handle low signal amplitudes and ensure high resolution. In addition, input offset voltage of 300µV simplifies circuit design for high-accuracy measurement and monitoring. The 6MHz gain-bandwidth product (GBW) and 3V/µs slew rate ensure faithful signal conditioning at low-to-medium frequencies. For more bandwidth in circuits where higher gain is required, the decompensated TSB7192A has 22MHz GBW with comparable current consumption and low noise.

The TSB712A has a built-in input filter that ensures high EMI Rejection Ratio (EMIRR) across a wide frequency range, which minimizes susceptibility to interference in noisy industrial or automotive environments, or close to RF equipment.

With rail-to-rail input and output, the TSB712A is suited to duties such as high-side or low-side current sensing, data acquisition, Hall-sensor interfacing, driving actuators, and motor control. It can be used in a wide variety of industrial control and monitoring applications, instrumentation, test & measurement equipment, and others. Moreover, automotive-grade devices available from September 2018 can be used in advanced driver assistance systems (ADAS) and throughout body electronics, infotainment, and powertrain.

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