What is the largest sensor output that can produce 4V of span (VDD = 5V) in the MAX1452, without requiring an external circuit?
The largest sensor output can be determined when the smallest excitation voltage setting of 1.5V (VDD = 5V) and smallest PGA gain (39x) are applied. The applying equation is: sensor output (mV/V) = Span (V) / [VBDR (V) x PGA-Gain (V/V)] x 1000. The largest possible sensor output is 68mV/V.