ROHM announces the world’s first noise-tolerant op-amps
Unprecedented noise immunity contributes to improved reliability and simpler designs in automotive sensor applications
Willich-Münchheide/Germany, November 16, 2017 – With its BA8290xYxx-C series, ROHM offers automotive-grade op-amps featuring superior noise immunity. The output voltage fluctuations are suppressed in all frequency bands to less than ±1%, compared to ±3.5% to ±10% with conventional products. This allows, for example, sensor signals to be amplified without the need for noise countermeasures, which significantly reduces design load and contributes to greater reliability. The new series is ideally suited for automotive applications, where sensors are used along with the core systems for electric vehicles (EV) and hybrid electric vehicles (HEV).

The latest automotive systems achieve greater fuel economy and safety by using ECUs and sensors that manage and optimise temperature, acceleration and current. Greater digitalisation and application density in automotive systems however exacerbate the problem of EMC, since each additional component constitutes a potential source of interference. This presents significant problems for sensors and other small-signal devices. Since it is extremely difficult to evaluate individual sources of noise during automotive development, noise evaluation has to be performed after installation. Unless careful attention is paid to the design of the noise suppression, major modifications (entailing increased costs and development time) may be required if the application fails testing.

In response, ROHM has developed the world's first op-amps that eliminate the effects of noise in automotive sensor applications by utilising a vertically integrated production with analogue design technologies and bipolar processes.

First op-amps that eliminate the need for noise countermeasures

ROHM combines its proven analogue technologies in its BA8290xYxx-C series: circuit design (new noise countermeasures circuit), layout (based on market-proven analogue expertise) and bipolar processes. With this approach, ROHM not only reduces the number of components required for noise suppression (three RC filters for input, output and power supply), but also meets noise-related challenges in the development of automotive electrical systems, whilst contributing to lighter design load and higher reliability. In future, ROHM is also planning on supplying high noise immunity op-amps for the industrial market.

Supports automotive requirements worldwide

The BA8290xYxx-C series is AEC-Q100 qualified for automotive applications. It is characterised by a low current consumption of 0.5mA (BA82904YF-C/BA82904YFVM-C) and/or 0.7mA (BA82902YF-C/BA82902YFVM-C). The ICs are available in four versions with two or four op-amps and a supply voltage range from 3.0V to 36V. Their input offset voltage is typically around ±2mV and/or a maximum of ±6mV, the input voltage range between VEE and VCC-1.5V. The operating temperature range is –40°C to +125°C. As package versions, SOP8 (BA82904YF), MSOP8 (BA82904YFVM-C), SOP14 (BA82902YF-C) and SSOP-B14 (BA82902YFVM-C) are available. The pin-compatible packages facilitate easy replacement with existing standard products.

Additional applications
  • EV/HEV inverters
  • ECUs
  • Automatic gearboxes
  • Electric power steering
  • Automotive lamps
  • Car A/C
  • EV chargers
  • Car navigation
  • Combination switches
…and other vehicle electronical systems and circuits affected by noise.

Availability

Samples of the BA8290xYxx-C series are now available, OEM quantities from June 2018.

Further information on the new product will be available at ROHM Semiconductor’s stand at SPS IPC Drives (Hall 1, Stand 320).
About ROHM Semiconductor

ROHM Semiconductor is a global company of 352,010 million yen (3,23 billion US$) revenue per March 31th, 2017 with 21,308 employees. ROHM Semiconductor 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 in state-of-the-art manufacturing plants in Japan, Korea, Malaysia, Thailand, the Philippines, China and Europe.
LAPIS Semiconductor (former OKI Semiconductor), SiCrystal AG, Kionix are companies of 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
 
 
 
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» Press Release
Date: 16.11.2017 15:00
Number: OPAMP_BA8290xYxx-C EN
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ROHM announces the world’s first noise-tolerant op-amps
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ROHM Semiconductor GmbH        
Public Relations                
Justine Hörmann                
Karl-Arnold-Str. 15                
D-47877 Willich-Münchheide        
Germany                    
Phone: +49 2154 921 0            
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