Datasheet

The firmware accepts commands, writes status, and is capable of downloading blocks of sampled data to a
standard terminal program via a virtual COM port. The complete source code is provided to speed up customer
development. Code documentation can be found in the corresponding firmware platform files.
Quick Start
Required equipment:
Windows
®
PC with two USB ports
Santa Fe (MAXREFDES5#) board
Santa Fe-supported platform (i.e., Nexys 3 development kit or ZedBoard kit)
Industrial sensor or signal source
Download, read, and carefully follow each step in the appropriate Santa Fe Quick Start Guide:
Santa Fe (MAXREFDES5#) Nexys 3 Quick Start Guide.
Santa Fe (MAXREFDES5#) ZedBoard Quick Start Guide.
Lab Measurements
Equipment used:
Audio Precision
®
SYS-2722 signal source or equivalent
Windows PC with two USB ports
Santa Fe (MAXREFDES5#) board
Nexys 3 development kit
+12V power supply (for external power testing only)
-12V power supply (for external power testing only)
Special care must be taken and the proper equipment must be used when testing the Santa Fe design. The key
to testing any high-accuracy design is to use sources and measurement equipment that are of higher accuracy
than the design under test. A low distortion signal source is absolutely required in order to duplicate the results
presented below. The input signal was generated using the Audio Precision SYS-2722. The analog inputs should
be driven with a source and not be left floating. The FFTs were created using the FFT control in SignalLab from
Mitov Software
. Table 3 provides a quick reference for the AC and DC performance of each channel for both on-
board isolated power and external power shown in Figures 3 through 18. All lab measurements were done at
room temperature.
Table 3. Quick Reference Guide for AC Performance (FFTs) or DC Performance (Histograms) in
Figures 3 through 18
Channel Power Type Input Type Test Type Figure Number
Channel 0 (AIN0) On-board isolated ±10V, High AC - FFT Figure 3
Channel 0 (AIN0) On-board isolated ±10V, High DC - histogram Figure 4
Channel 0 (AIN0) External ±10V, High AC - FFT Figure 5
Channel 0 (AIN0) External ±10V, High DC - histogram Figure 6
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