CN-0217 Datasheet, PDF (6/6 Pages) Analog Devices – High Accuracy Impedance Measurements Using 12-Bit Impedance Converters

CN-0217
A1
D
ADG849
IN
R_FB
S1
Z_UNKNOWN
S2
R_CAL
A2
V_DD
50kΩ
50kΩ
Figure 13. Switching Between RCAL and Unknown Z Using the ADG849
Ultralow RON SPDT Switch (Simplified Schematic, All Connections and
Decoupling Not Shown)
Circuit Note
LEARN MORE
CN-0217 Design Support Package:
http://www.analog.com/CN0217-DesignSupport
MT-085 Tutorial, "Fundamentals of Direct Digital Synthesis
(DDS)," Analog Devices.
Buchanan, David, "Choosing DACs for Direct Digital
Synthesis," AN-237 Application Note, Analog Devices.
Riordan, Liam, "AD5933 Evaluation Board Example
Measurement," AN-1053 Application Note, Analog Devices.
UG-364 User Guide for AD5933 Evaluation Board
ADIsimDDS Design and Evaluation Tool
AD5933/AD5934 Demonstration and Design Tool
Data Sheets and Evaluation Boards
AD5933 Data Sheet
AD5933 Evaluation Board
AD5934 Data Sheet
AD5934 Evaluation Board
AD8606 Data Sheet
ADG849 Data Sheet
ADG812 Data Sheet
REVISION HISTORY
3/13—Rev. 0 to Rev. A
Updated Table Numbers; Renumbered Sequentially....................3
Changes to Evaluation and Design Support Section ....................1
Changes to Setup and Test Section and Table 6 ............................5
Changes to Learn More Section ......................................................6
6/11—Revision 0: Initial Version
(Continued from first page) Circuits from the Lab circuits are intended only for use with Analog Devices products and are the intellectual property of Analog Devices or its licensors. While you
may use the Circuits from the Lab circuits in the design of your product, no other license is granted by implication or otherwise under any patents or other intellectual property by
application or use of the Circuits from the Lab circuits. Information furnished by Analog Devices is believed to be accurate and reliable. However, Circuits from the Lab circuits are supplied
"as is" and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability, noninfringement or fitness for a particular
purpose and no responsibility is assumed by Analog Devices for their use, nor for any infringements of patents or other rights of third parties that may result from their use. Analog Devices
reserves the right to change any Circuits from the Lab circuits at any time without notice but is under no obligation to do so.
©2011–2013 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
CN09915-0-3/13(A)
Rev. A | Page 6 of 6