ADC121S101/ADC101S101/ADC081S101
Applications Information
(Continued)
spent in normal mode may be calculated by multiplying the
throughput (in samples per second) by 2 碌s, the time taken
to perform one dummy and one valid conversion. The power
consumption can then be found by multiplying the fraction of
time spent in normal mode by the normal mode power
consumption figure. The power dissipated while the part is in
shutdown mode is negligible.
For example, to calculate the power consumption at 300
kSPS with V
DD
= 5V, begin by calculating the fraction of time
spent in normal mode: 300,000 samples/second 路 2 碌s = 0.6,
or 60%. The power consumption at 300 kSPS is then 60% of
17.5 mW (the maximum power consumption at V
DD
= 5V) or
10.5 mW.
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