Name
Title | ||
|---|---|---|
A 12-bit 200KS/s SAR ADC with a mixed switching scheme and integer-based split capacitor array |
Abstract | ||
|---|---|---|
A low power successive approximation register ADC (SAR ADC) using a high performance integer-based split capacitor array combining with a mixed switching strategy is presented in this work. The split capacitor is chosen to be 2 times unit capacitance rather than the traditional non-integer value which is difficult to get. This array features high linearity, low area and power consumption. Besides, a mixed switching strategy combining the merged capacitor switching with monotonic switching is also used to save half of total capacitance. And a time domain comparator is used to achieve better offset performance. Implemented in a 0.18-μm CMOS technology, the proposed ADC is measured to have a 65.5 dB signal-to-noise-and-distortion ratios(SNDR) which leads to a 10.6 effective number of bits(ENOB) at 200KS/s sampling rate. Its power consumption is 1.49-μW and figure of merit (FOM) is only 4.87 fJ/c-s at a voltage supply of 0.9V. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/NEWCAS.2013.6573564 | NEWCAS |
Keywords | Field | DocType |
switched capacitor networks,cmos integrated circuits,analogue-digital conversion,sndr,time domain comparator,voltage 0.9 v,low power successive approximation register adc,integer-based split capacitor array,mixed switching strategy,low-power electronics,sar adc,integer based split capacitor array,signal-to-noise-and-distortion ratio,cmos technology,size 0.18 mum,low power,monotonic switching,comparators (circuits),merged capacitor switching,word length 12 bit,power 1.49 muw,switches,capacitance,low power electronics,capacitors,linearity | Capacitor,Capacitance,Computer science,Effective number of bits,Electronic engineering,Figure of merit,Decoupling capacitor,Successive approximation ADC,Electrical engineering,Offset (computer science),Low-power electronics | Conference |
Volume | Issue | ISSN |
null | null | null |
ISBN | Citations | PageRank |
978-1-4799-0618-5 | 3 | 0.56 |
References | Authors | |
4 | 5 | |