12b 50 MS 0.18 μm CMOS ADC with highly linear input variable gain amplifier

FREE-DOWNLOAD MH Choi, GC Ahn… – Electronics letters, 2010
A 12b 50 MS/s 0.18 mm CMOS ADC with a highly linear variable gain amplifier (VGA) for medical
ultrasound and CCD image sensor applications is presented. The proposed four-step pipeline
ADC opti- mises power and chip area at target specifications while the front-end VGA,