1 Department of Information Technology, Technical University of Denmark
The authors investigate power supply noise in mixed analogue-digital circuits, arising from communication between the analogue and digital parts of the circuit. Current steering techniques and proper buffering are used to show which noise currents can be reduced and which cannot. In addition, a high-swing current steering buffer for driving analogue switches or external digital signals is proposed.
Electronics Letters, 1998, Vol 34, Issue 17, p. 1660-1661