New EMARMOUR™ 2 Channel High-Speed Op Amp

ROHM introduces the availability of a “2 channel high-speed ground sense CMOS op amp”, BD77502FVM, optimized for consumer and industrial equipment requiring high-speed sensing – such as industrial measurement and control systems.

The proliferation of the Internet of Things (IoT) in recent years has led to a significant increase in the number of electronic components used for advanced control in a variety of applications. This trend towards greater electronics density is leading to noisier environments, making it extremely difficult to implement designs with electromagnetic compatibility (EMC). Op amps play a critical point role because they quickly amplify small signals (from sensors) in many detection systems that provide safety. In addition, printed circuit board designs can also be problematic for conventional op amps that are susceptible to oscillation due to capacitive loads (i.e. from wiring).

To mitigate noise issues common with conventional op amps, ROHM has developed the EMARMOUR™ series featuring superior noise tolerant op amps. The first groundbreaking member of the EMARMOUR family was the BD77501G single channel high-speed CMOS op amp that leveraged the original Nano Cap™ technology to prevent oscillation caused by load capacitance. This product has been well-received by many engineers in a variety of fields and regions, and our latest 2 channel version was developed to meet increasing market demands.

The newest BD77502FVM integrates two op amp devices that prevent oscillation while providing high-speed amplification with slew rates up to 10V/µs and breakthrough immunity to electromagnetic interference (EMI). The output voltage across the entire noise frequency band is limited to under ±20mV, which is 10 times lower than a conventional op amp. High-speed signal amplification is now achievable without being affected by external noise or load capacitance when used in devices that output small signals such as sensors, thus 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
    …and other industrial and consumer applications requiring high-speed signal transmission and amplification without worrying about load capacitance.

EMARMOUR™ CMOS Op Amp Lineup

Availability: In mass production

 

About ROHM
ROHM Semiconductor is a global company of 3.326 billion US dollars per March 31st, 2020 with 22,191 employees. The company develops and manufactures a very large product range from the Ultra-Low Power Microcontroller, Power Management, Standard ICs, SiC Diodes, MOSFETs and Modules, Power Transistors and Diodes, LEDs to passives components such as Resistors, Tantalum Capacitors and LED display units, thermal Printheads. The production of our high performing products is taking place in state-of-the-art manufacturing plants in Japan, Korea, Malaysia, Thailand, the Philippines and China.
LAPIS Semiconductor (former OKI Semiconductor), SiCrystal GmbH and Kionix are companies of the ROHM Semiconductor Group.
ROHM Semiconductor Europe has its Head Office near Dusseldorf serving the EMEA region (Europe, Middle East and Africa). For further information, please contact www.rohm.com/eu