Precision Low-Noise Op Amp Supports High Supply Voltage and Temperature Range


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Precision Low-Noise Op Amp from STMicroelectronics Boosts Flexibility with Extended Voltage and Temperature Ranges

STMicroelectronics' new TSB712A Low-Noise Op-amp allows high range of input voltage and temperature. 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 high EMI Rejection Ratio over a wide frequency range, it reduces the chance of interference in noisy industrial or automotive environments, or close to RF equipment.


TSB712A has low input voltage noise of 12nV/√Hz, perfect to 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 proper 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.


With rail-to-rail input and output, the TSB712A can be used for high-side or low-side current sensing, data acquisition, Hall-sensor interfacing, driving actuators, and motor control. It can also be used in a wide variety of industrial control and monitoring applications, instrumentation, test & measurement equipment, and others.


The TSB712A and TSB7192A are in production now, packaged as MiniSO8, both priced from $0.95 for orders of 1000 pieces.

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