ZHCSHA4B July 2007 – January 2018 DAC8881
PRODUCTION DATA.
The maximum output range of the DAC8881 is VREFL to VREFH × G, where G is the output buffer gain set by the GAIN pin. When the GAIN pin is connected to DGND, the output buffer gain = 1. When the GAIN pin is connected to IOVDD, the output buffer gain = 2. The output range must not be greater than AVDD; otherwise, output saturation occurs. The DAC8881 output transfer function is given in Equation 1:
Where:
CODE = 0 to 65535. This is the digital code loaded to the DAC.
Buffer Gain = 1 or 2 (set by the GAIN pin).
VREFH = reference high voltage applied to the device.
VREFL = reference low voltage applied to the device.