ROHM announced the availability of a two-channel, ground sense CMOS operational amplifier (op amp), BD77502FVM, for consumer and industrial equipment requiring high-speed sensing, such as industrial measurement and control systems. 

To mitigate noise issues common with conventional op amps, ROHM has developed the EMARMOURseries featuring noise-tolerant op amps. Per the company, this product has been well received by engineers in a variety of fields and regions, and this two-channel version was developed to meet market demands. 

Also, per the company, the newest BD77502FVM integrates two op amp devices that prevent oscillation (i.e., due to wiring) while providing high-speed amplification with slew rates up to 10V/µs and immunity to electromagnetic interference (EMI). The output voltage across the entire noise frequency band is limited to under ±20mV, which, according to the company, is 10x lower than a conventional op amp. High-speed signal amplification is achievable without being affected by external noise or load capacitance when used in devices that output small signals, such as sensors, therefore improving reliability while simplifying circuit designs.

Application Examples

• Facility management equipment, such as abnormal current and gas detectors
• Motors requiring high-speed control (signal transmission)
• Inverter control equipment
• Pre-drive buffers for driving transistors
• Other industrial and consumer applications requiring high-speed signal transmission and amplification without worrying about load capacitance

The BD77502FVM is currently available in mass production.

For more information, visit: www.rohm.com