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Can I read A VCO-ADC Linearized by a Capacitive Frequency-to-Current Converter on EtoBox?
A VCO-ADC Linearized by a Capacitive Frequency-to-Current Converter by Ruben Garvi; Javier Granizo; Eric Gutierrez; Victor Medina; Andreas Wiesbauer; Luis Hernandez is a Engineering article available to read on EtoBox.
What is A VCO-ADC Linearized by a Capacitive Frequency-to-Current Converter about?
In this brief we propose a technique to compensate the distortion of an open-loop VCO-based ADC. The VCO is linearized by placing an analog feedback loop based on a frequency-to-current converter which uses an asynchronous switched capacitor circuit. The feedback loop relies on the VCO gain to linearize the ADC without requiring additional amplifiers. This permits the use of a ring oscillator with small input range to efficiently encode a large signal. The proposed technique has been experimentally demonstrated in an audio ADC. The proofof-concept chip was fabricated in 130nm CMOS and achieves 76.64 dBA of peak SNDR with a Dynamic Range of 90dB and a power consumption of 482μW in 20kHz.
Who reads A VCO-ADC Linearized by a Capacitive Frequency-to-Current Converter?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Ruben Garvi; Javier Granizo; Eric Gutierrez; Victor Medina; Andreas Wiesbauer; Luis Hernandez
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)