ROHM develops dual-channel high-speed CMOS operational amplifiers

     In recent years, with the popularity of IoT, many electronic components have been installed to achieve advanced control in various applications such as automotive and industrial equipment. With the development of electronic and high-density applications, the noise environment is getting worse and worse, and the noise reduction design of components such as sensors that process small signals has become a huge issue. In addition, in various anomaly detection systems designed to ensure safety, operational amplifiers that can amplify small signals at high speed are needed, but high-speed operational amplifiers are prone to oscillation due to load capacitors such as wiring, and are difficult to deal with, so they become a great burden for PCB design.

     In the EMARMOUR™ series with excellent anti-interference performance, ROHM has introduced the single channel high-speed CMOS operational amplifier "BD77501G", which uses its own power supply technology "Nano Cap™" and does not oscillate due to load capacity. The product has received a wide range of areas and regions, including customers and other areas of technical personnel, so in order to meet market demand, the launch of a new dual-channel product.

     "BD77502FVM" is a new product with excellent anti-EMI performance *2 (hereinafter referred to as "anti-noise performance"), support for high-speed amplification (10V/µs high conversion rate), while not oscillating due to load capacity such as wiring, and built-in two-way (2ch) high-speed operational amplifier has been highly praised. Due to its excellent anti-noise performance, it can not only control the output voltage fluctuation of each noise band within ±20mV (1/10 of the ordinary product), but also does not oscillate in the high-speed operational amplifier which is prone to oscillation due to the load capacity, and can work stably.

     Therefore, when the product is configured in the rear stage of components such as sensors that output small signals, high-speed signal amplification can be achieved without the influence of external noise and load capacity, and as a two-channel product, it is more compact, helping to reduce the design hours of the application and improve reliability.