Analog Devices AD5422LF Evaluation Board EVAL-AD5422LFEBZ EVAL-AD5422LFEBZ Data Sheet

Product codes
EVAL-AD5422LFEBZ
Page of 16
Evaluation Board User Guide
One
 
Technology
 
Way
 
 
P.O.
 
Box
 
9106
 
 
Norwood,
 
MA
 
02062-9106,
 
U.S.A.
 
 
Tel:
 
781.329.4700
 
 
Fax:
 
781.461.3113
 
 
 Single Channel, 16-Bit, Current Source and Voltage Output 
DAC, HART Connectivity  
 
 
 
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT  
WARNING AND LEGAL TERMS AND CONDITIONS.
 
Rev. C | Page 1 of 16 
FEATURES 
Full-featured evaluation board for the 
On-board reference 
Link options 
Direct hook-up to USB port of PC 
PC software for control 
 
EVALUATION BOARD DESCRIPTION 
The EVAL-AD5422 is a full-featured evaluation board that is 
designed to allow the user to easily evaluate all features of the 
16-bi
 current source and voltage output digital-to-
analog converter (DAC). All of th
 pins are accessible 
at on-board connectors for external connection. The board can 
be controlled by two means, via the on-board connector (J8) or via 
the USB port of a Windows® 2000-, NT®-, XP®-based PC using the 
 evaluation software. The default setup is for control via 
the USB port. 
Two separate packages exist for th
 (24-lead TSSOP and 
40-lead LFCSP); therefore, two corresponding evaluation boards 
are available. 
DEVICE DESCRIPTION 
 is a low cost, precision, fully integrated 16-bit 
converter, offering a programmable current source and 
programmable voltage output designed to meet the requirements 
of industrial process control applications. The output current 
range is programmable to 4 mA to 20 mA, 0 mA to 20 mA, or an 
overrange function of 0 mA to 24 mA. The voltage output is 
provided from a separate pin that can be configured to provide 
0 V to 5 V, 0 V to 10 V, ±5 V or ±10 V output ranges; an overrange 
of 10% is available for all ranges. Analog outputs are short- and 
open-circuit protected and can drive capacitive loads of 1 μF. The 
device is specified to operate with a power supply range from 
10.8 V to 40 V. The output loop compliance is 0 V to AV
DD
 − 2.5 V.  
Complete specifications for th
 are available in the 
 data sheet and should be consulted in conjunction 
with this document when using the evaluation board. 
 
 
FUNCTIONAL BLOCK DIAGRAM 
USB
CONNECTOR
POWER SUPPLY INPUTS
PIN
HEADER (J8)
CONTROLLER
CY7C68013A
SELECT
ADC
REFIN
INPUT/
OUTPUT
REFOUT
AD5422
5V
VOLTAGE
REFERENCE
EXT REF
I TO  V
V
OUT
I
OUT
08
230
-001
 
Figure 1.