Title :
A 1V supply successive approximation ADC with rail-to-rail input voltage range
Author :
Yoshida, Takeshi ; Akagi, Miho ; Sasaki, Mamoru ; Iwata, Atsushi
Author_Institution :
Graduate Sch. of Adv. Sci. of Matter, Hiroshima Univ., Japan
Abstract :
This paper proposes a 1V-supply capacitor-array-based successive approximation ADC utilizing grounded analog switches and a switched operational amplifier implemented with standard CMOS devices. The ADC with a high resolution of 10-bit and a rail-to-rail input voltage range was designed and its operation was confirmed by SPICE simulation. The ADC achieved sampling rate of 800-ksps and power consumption of 0.22-mW at 1-V supply voltage.
Keywords :
CMOS integrated circuits; analogue-digital conversion; capacitors; operational amplifiers; 0.22 mW; 1 V; CMOS devices; SPICE simulation; capacitor array; grounded analog switches; rail-to-rail input voltage range; successive approximation ADC; switched operational amplifier; Circuit simulation; Energy consumption; Operational amplifiers; Power supplies; Rail to rail inputs; SPICE; Switched capacitor circuits; Switches; Switching circuits; Voltage;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464557
