For this test, the test setup is
similar to Section 4.3.1. For measuring the performance, the DAC is set to three different output currents
(zero [minimum], midpoint, maximum) and the resulting current is measured 8192
times. From these values, the histogram is plotted, the other parameters are
calculated from these readings.
Figure 4-17 shows the complete setup.
Figure 4-18 through
Figure 4-26 show
the histogram of the measured current.
Figure 4-18 Histogram AFE881 Powered
With 1.8V, Minimum DAC Setting
Figure 4-20 Histogram AFE881 Powered
With 1.8V, Maximum DAC Setting
Figure 4-22 Histogram AFE881 Powered
With 3.3V, Midpoint DAC Setting
Figure 4-24 Histogram AFE882 Powered
With 3.3V, Minimum DAC SettingFigure 4-26 Histogram AFE882 Powered
With 3.3V, Maximum DAC Setting
Figure 4-19 Histogram AFE881 Powered
With 1.8V, Midpoint DAC Setting
Figure 4-21 Histogram AFE881 Powered
With 3.3V, Minimum DAC Setting
Figure 4-23 Histogram AFE881 Powered
With 3.3V, Maximum DAC Setting
Figure 4-25 Histogram AFE882 Powered
With 3.3V, Midpoint DAC Setting