Broadband analogue to digital converters (ADCs) and digital to analogue converters (DACs) are key building blocks in modern transceiver design. This seminar discusses some of their unique attributes and their influence on RF system design. In particular, it covers their unique frequency transfer function and its RF system implications, SNR limitations due to quantisation and jitter, and frequency planning considerations – all in respect of real-IF and zero-IF transceivers that include ADCs and DACs.