Name
Abstract | ||
|---|---|---|
This paper presents an energy-efficient 12-bit 200kS/s subranging SAR ADC for multi-touch sensing applications. In order to reduce DAC power consumption, an energy-curve reshape technique is proposed to fit the switching energy curve to the characteristics of Rx signals. An auxiliary polarity quantizer joined with the well-known bottom-plate sampling not only can eliminate the gain mismatch of the subranging architecture but also can be as effective as the top-plate sampling. The ADC low-voltage operation could support the smart wake-up mode in the touch sensing system without using dual reference voltages. A pulse-type self-trigger latch technique is utilized to decrease digital loop power dissipation in the low-voltage environment. This ADC consumes 0.95 μW at 200kS/s under a 0.7V supply in 40nm CMOS technology. It achieves an SNDR of 69.24dB at Nyquist rate and results in an FoM of 2fJ/c.-s. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1109/ASSCC.2016.7844157 | 2016 IEEE Asian Solid-State Circuits Conference (A-SSCC) |
Keywords | Field | DocType |
Analog to digital converter (ADC),successive approximation register (SAR),subranging,low power,touch sensing,smart wake-up | Capacitor,Efficient energy use,Computer science,Voltage,12-bit,CMOS,Electronic engineering,Successive approximation ADC,Quantization (signal processing),Electrical engineering,Nyquist rate | Conference |
ISBN | Citations | PageRank |
978-1-5090-3701-8 | 0 | 0.34 |
References | Authors | |
2 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yao-Sheng Hu | 1 | 44 | 5.40 |
| Kai-Yue Lin | 2 | 0 | 0.68 |
| Hsin-shu Chen | 3 | 93 | 16.12 |