A Review of Implementing ADC in RFID Sensor

Table 2

The most efficient converters reported on VLSI and ISSCC since 2008.

Ref.	Type	FOM (fJ/Conv-step)	fs (MHz)	(uW)	ENOB	Tech. (nm)
[8]	SAR	4.4	1.00	1.90	8.7	65
[9]	SAR	6.3	1.10	1.20	7.5	40
[10]	SAR	6.5	4.00	17.44	9.4	90
[11]	SAR	3.2	0.10	0.17	9.1	90
[12]	SAR	2.2	0.04	0.10	10.1	65
[13]	SAR	2.4	0.50	0.50	8.7	90
[14]	SAR	2.0	0.25	0.20	8.6	90
[15]	SAR	4.4	0.03	0.35	11.3	65
[16]	SAR	0.9	0.20	0.08	8.9	40
[17]	Async.	3.7	80.00	24.00	6.4	28
[18]	SAR	2.4	0.08	0.11	9.1	65
[19]	SAR	6.6	0.10	0.12	7.5	180
[20]	SAR	1.5	0.10	0.09	9.2	65
[21]	SAR	5.5	6.40	46.00	10.4	40