. Author manuscript; available in PMC: 2013 Oct 23.

Published in final edited form as: IEEE Trans Circuits Syst I Regul Pap. 2013 Jan 9;60(6):1407–1418. doi: 10.1109/TCSI.2012.2220464

TABLE II.

Performance Comparison of ADCs Recently Reported for Sensory Applications

Year	2012	2008	2011	2006	2010
Integrated Circuit Technology	0.5µm CMOS	90nm CMOS	0.18µm CMOS not fully integrated	0.6µm CMOS simulation	0.13µm CMOS
Power Supply	3.3V	IV	0.7V	5V	1.2V
ADC Area	0.06mm²	0.06mm²	0.96mm²	N/A	0.17mm²
ADC Method	Fixed Window Asynchronous	Floating Window Asynchronous	Floating Window Asynchronous	Integration Asynchronous	SAR ADC Clocked
Input Signal Bandwidth	0.2–5kHz	0.2–3.4kHz (Audio)	1kHz (full scale)	5.4kHz	N/A
Measured SNDR	31dB	50 dB	43.2 dB	N/A	39.32dB
Power Consumption	8.25µW (Static) 106µW (1kHz Input)	45µW (ADC only)	25µW w/o off chip logic	100 µW simulation	1µW
Conversion Rate (per second)	60k	512k^a	50k		10k
Figure of Merit (l/nj · mm²)	662^b ^c	1,048,646^c	601^b ^c ^d	N/A	5379^e
Reference	This Work	[39]	[23]	[15]	[9]

Level crossing sampling with 8bit resolution for 1kHz input signal

Using off-line reconstruction

SNDR is set to 1kHz input signal

Digital logic feedback not integrated on chip

Using clocked ADC, no data compression