The entire system-clock signal chain must be understood in order to achieve optimal performance from an Analog-to-Digital (A/D) converter. It can be discouraging to find that a circuit’s accuracy is clock-jitter limited, as this problem could have been prevented during the design phase. This article considers the relevant clock specifications and means
of achieving the expected performance of a high speed converter. It explains how decreased clock jitter can be achieved through frequency division, filtering, use of an improved clock source, and proper choice of auxiliary hardware.

Reproduced with the permission of Analog Devices, Inc.