The cores provided by Ridgetop are "Silicon Proven" and have documented reports available. Ridgetop has designed cores for use in the IBM, TSMC, and AMI processes.
*Analog-to-Digital Converter (ADC) Cores
*Digital-to-Analog Converter (DAC) Cores
*DC-to-DC switching converter
*Bandgap Reference (BGR) Core
*Op-amp Core

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Ridgetop has the technical experience and proven results for critical aerospace, automotive, and semiconductor sectors. Our ADC IP library includes:
Rad-hard ADCs for aerospace and military applications
Non-rad-hard ADCs for commercial applications

InstaCell™ Ridgetop Group

Ridgetop’s audio DAC uses delta-sigma architecture. As shown in the illustration above, the DAC uses a digital interpolation filter, a digital second-order delta-sigma modulator, and a 32-tap analog reconstruction filter FIR. A fourth-order modulator is available to decrease oversampling ratio if the application requires. Applications for this core include audio commercial electronics, industrial control, and automotive.

InstaCell™ Ridgetop Group

The Ridgetop DC-DC switching converter/power supply design meets demanding requirements for size, efficiency, and voltage range, and greatly exceeds the performance of similar commercial products.

InstaCell™ Ridgetop Group