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analog_discovery_2_参考手册 [2016/05/31 14:05] admin [2.2. 示波器缓冲] |
analog_discovery_2_参考手册 [2016/05/31 14:07] admin [2.3. Scope Reference and Offset] |
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| 增益为: $$\frac {V_{buf}}{V_{mux}}=1\label{9}\tag{9}$$ | 增益为: $$\frac {V_{buf}}{V_{mux}}=1\label{9}\tag{9}$$ | ||
| - | ===== 2.3. Scope Reference and Offset ===== | + | ===== 2.3. 示波器参考和偏置 ===== |
| [[analog_discovery_2:refmanual#figure_5|Figure 5]] shows the scope voltage reference sources and offset control stage. A low noise reference is used to generate reference voltages for all the scope stages. Buffered and scaled replicas of the reference voltages are provided for the buffer stages and individually for each scope channel to minimize crosstalk. A dual channel DAC generates the offset voltages, to be added over the input signal, for vertical position. Buffers are used to provide low impedance. | [[analog_discovery_2:refmanual#figure_5|Figure 5]] shows the scope voltage reference sources and offset control stage. A low noise reference is used to generate reference voltages for all the scope stages. Buffered and scaled replicas of the reference voltages are provided for the buffer stages and individually for each scope channel to minimize crosstalk. A dual channel DAC generates the offset voltages, to be added over the input signal, for vertical position. Buffers are used to provide low impedance. | ||