What are the limits for the bridge-excitation voltage in the MAX1452?
The bridge-excitation limits are dictated by the limits in setting the FSO DAC. This limit is specified in the data sheet as 0x4000 to 0xC000, which corresponds to approximately 1.25V to 3.75V from the FSO DAC, for VDD = 5V. In practice, the bridge-excitation voltage can be as high as 4.5V.