[Retracted] Enhancing the Accuracy and Speed of Sampling in Image Sensors by Designing Analog to Digital Converter with Power Decrease Approach

Table 4

Comparison between suggested WTA circuit and samples presented in recent years.

Paper	[17]	[18]	[19]	[20]	[21]	[22]	This work
Technology	0.18 μm	0.18 μm	0.18 μm	0.35 μm	0.18 μm	0.13 μm	0.18 μm	0.18 μm	0.18 μm
Supply voltage (V)	1.8	1	0.8	2.5	1	0.5	0.5	0.5	1
No. of inputs	8	8	8	3	4096	8	3	8	8
Precision (%)	96.4	99	99.5	99.6	99.9	—	99.95	99.8	99.9
(MHz)	29	3.5	0.383	10	10	10	1.75	1.66	10
Power per input (μW)	20	10	0.36	—	—	—	0.045	0.031	0.24
FoM (μW/MHz)	0.77	2.85	0.93	—	—	0.075	0.025	0.018	0.024
Type			BT	CC	Time based	LDO	Time based
Measurement/simulation	Measurement	Simulation	Measurement	Simulation	Measurement	Simulation	Postlayout simulation

Current conveyor: a current conveyor is an abstraction for a three-terminal analogue electronic device. It is a form of electronic amplifier with unity gain. There are three versions of generations of the idealized device, CCI, CCII, and CCIII. Binary tree.