The Designer's Guide Community
Forum
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Mar 29th, 2024, 3:46am
Pages: 1
Send Topic Print
DAC output DC voltage shift (Read 26 times)
CMOSMas
New Member
*
Offline



Posts: 1

DAC output DC voltage shift
Nov 30th, 2020, 1:35am
 
Hi guys,

i'm working on a 10bit charge redistribution switched-capacitor serial DAC.
The converter works with V_ref=10mV=V_fs.
In this way, the converter starts convertingthe input from 0 to 10mV.
The problem is that i need this very small LSB=9.8uV but at the end of the conversion, the output must have 300mV DC voltage (lets say a 10mVpp sinusoidal signal with 300mV DC).
The DAC output goes to an high gain voltage buffer stage in order to drive a capacitive load.
How can i introduce the DC voltage? Level-shift after the buffer or internally within the dac?

Thank you in advance!  :)
Back to top
 
 
View Profile   IP Logged
Pages: 1
Send Topic Print
Copyright 2002-2024 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.