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Intersil expert discusses high-speed amps at IIC-China

Posted: 04 Mar 2004 ?? ?Print Version ?Bookmark and Share

Keywords:iic china 2004? intersil? operational amplifier? topic session? linearity?

In one of the hot sessions at the 9th Annual IIC-China Exhibit, Intersil Corp.'s Richard Yin kept the fires of interest burning among engineers present as he discussed the company's paper.

Called 'How to avoid the instability of rail-to-rail CMOS operational amplifiers,' Yin answered some critical questions such as 'what is the [target] application for high-speed

op-amps?' And sure enough, Yin gave his obvious reply: ADSL.

And Intersil experts couldn't agree more. ADSL demands very high linearity and power, which is the main application Intersil op-amps were designed for. Yin further explained that other than ADSL and broadband video applications, video control arena is also a promising market that requires high-speed op-amp designs.

In the discussion, Yin discussed not only the op-amp applications that catch engineers' fancy, he also clarified some internal bus design issues raised by IC design engineers from IPCore and Zhongxing Telecom. As a query, Qiao Wenhao, an IPCore engineer, asked, "What would [you] do to get a symmetric output signal?"

Yin replied, "The core technology of Intersil high-speed operational amplifier is current feedback loop technology." He also stressed how the wafer manufacturing process is key to addressing signal quality concerns in op-amp designs.

- Simon Zhou

Electronics Engineering Times - China

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