14-Bit Fully Differential SAR ADC with PGA Used in Readout Circuit of CMOS Image Sensor

Table 3

The comparison of previous work.

Parameter	This work	JSSC 16 [15]	TED 16 [16]	ISSCC 18 [17]	JSSC 19 [18]
Process (nm)	180	180	90	90	65
ADC type	SAR	SAR	SAR	SAR	SAR
Supply voltage (V)	3.3	2.8/1.8	2.8/1.2	1.8/1	3.4
Number of pixel
Pixel pitch (μm)	12.5	4.4	1.12	1.5	1.5
Frame rate (fps)	50	100	60	60	170
Resolution (bit)	14	10	12	10	10