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

Table 2

Performance summary of the prototype.

Parameter	Value
Process	180 nm CMOS process
Analog supply	3.3 V
Digital supply	3.3 V
ADC
Resolution	14 bits
Sample rate	150 kSps
Input range	-2.4 V ~ +2.4 V
DNL	+1.4/-0.25LSB
INL	+1.1/-2.1LSB
SNR	71.7 dB
SFDR	82.91 dB
SINAD	70.28 dB
Power consumption	477.2 uW
PGA
Gain	3x, 4x, 6x
CIS
Frame rate	50 fps
Pixel number
Pixel pitch
Temporal noise	13.6 erms
Total power	613 mW