A current mode multi-channel Wilkinson ADC

A current mode multi-channel Wilkinson ADC

A current mode multi-channel ADC has been designed in a 0.5-mum bulk CMOS process. The ADC is capable of supporting multiple channels with an input current range of 10 muA to 80 muA. The main blocks in the ADC include a current ramp generator, multiple current comparators and a 12-bit Gray code coun...

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Bibliographische Detailangaben
Hauptverfasser: Nambiar, N., Blalock, B.J., Ericson, M.N., Kao, M.H.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Counting circuits
Current mode
Drives
Dynamic range
Energy consumption
Gray code counter
Mirrors
Multi-channel ADC
Ramp Generator
Reflective binary codes
Sampling methods
Signal design
Signal processing
Voltage
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Beschreibung
Zusammenfassung:A current mode multi-channel ADC has been designed in a 0.5-mum bulk CMOS process. The ADC is capable of supporting multiple channels with an input current range of 10 muA to 80 muA. The main blocks in the ADC include a current ramp generator, multiple current comparators and a 12-bit Gray code counter. Simulation results are presented that predict 12-bit resolution, sampling rates up to 20 Ksps, and a per-channel power consumption of less than 2 mW using a Wilkinson architecture with 8 channels.
DOI:10.1109/ICSES.2008.4673344