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reference:zmod:zmodadc:reference-manual [2019/11/25 14:40]
Mircea Dabacan [Features]
reference:zmod:zmodadc:reference-manual [2019/11/25 14:43] (current)
Mircea Dabacan [2.1. Scope Input Divider and Gain Selection]
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 The DC low gain is: $$\frac {V_{SC-LG}}{V_{SCOPE-SMA}}=\frac {R_5}{R_1+R_3+R_5}=0.04\label{2}\tag{2}$$ The DC low gain is: $$\frac {V_{SC-LG}}{V_{SCOPE-SMA}}=\frac {R_5}{R_1+R_3+R_5}=0.04\label{2}\tag{2}$$
  
-The low gain range: $$-25V \le V_{SCOPE-SMA} ​ \le 25V\label{3}\tag{3}$$+The High Range (at low gain): $$-25V \le V_{SCOPE-SMA} ​ \le 25V\label{3}\tag{3}$$
  
 The high gain is: $$\frac {V_{SC-HG}}{V_{SCOPE-SMA}} = \frac {R_4 + R_6}{R_2 + R_4 + R_6} = 0.96 \label{4}\tag{4}$$ The high gain is: $$\frac {V_{SC-HG}}{V_{SCOPE-SMA}} = \frac {R_4 + R_6}{R_2 + R_4 + R_6} = 0.96 \label{4}\tag{4}$$
  
-The high gain range: $$-1V \le V_{SCOPE-SMA} \le 1V \label{5}\tag{5}$$+The Low Range (at high gain): $$-1V \le V_{SCOPE-SMA} \le 1V \label{5}\tag{5}$$
  
 The two dividers are designed to have the same equivalent impedance (both active and reactive): ​ The two dividers are designed to have the same equivalent impedance (both active and reactive): ​