选择合适的系列电压基准源的绝对精度电压输出
Output Voltage
DAC Output
Power Supply
4.5V min
5.5V max
4.95V min
+12V available
4.75V min
5.25V max
2.7V min
3.6V max
Temperature Range
Signal BW
DAC Calibration
Maximum Error Target
Step 1: Voltage Ranges and Reference-Voltage Determination
The first consideration when selecting a voltage reference for a DAC application is to evaluate the supply-voltage and the DAC output-voltage ranges (Table 2). To simplify the design examples described above, DACs have already been chosen, so their output gain is not a variable we will trade off as in a real design.Table 2. Voltage-Related Parameters for DAC Design Examples
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Main Design Objectives |
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Example Application |
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