Datasheet

AD8217
Rev. A | Page 11 of 16
APPLICATION NOTES
OUTPUT LINEARITY
In all current sensing applications where the common-mode
voltage can vary significantly, it is important that the current
sensor maintain the specified output linearity, regardless of
the input differential or common-mode voltage. The AD8217
maintains a very high input-to-output linearity even when the
differential input voltage is very small.
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DIFFERENTIAL INPUT (mV)
OUTPUT (mV)
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9161-025
Figure 25. Gain Linearity at Small Differential Inputs (V
CM
= 4.5 V to 80 V)
Regardless of the common mode, the AD8217 provides a
correct output voltage when the input differential is at least
1 mV. The ability of the AD8217 to work with very small
differential inputs, regardless of the common-mode voltage,
allows for optimal dynamic range, accuracy, and flexibility in
any current sensing application.