TS616 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TS616' PDF : 36 Pages View PDF
Choosing the feedback circuit
TS616
The cutoff frequency is not gain-dependent and so becomes:
ωc
=
-----------------1-------------------
R1R2C1C2
The damping factor is calculated by the following expression:
ζ
=
1--
2
ωc
(
C1R1
+
C1R2
+
C2R1
–
C1R1g)
The higher the gain the more sensitive the damping factor is. When the gain is higher than
1, it is preferable to use some very stable resistor and capacitor values. In the case of
R1 = R2:
ζ = 2----C-----2----–----C-----1---R--R--------f-g--b--
2 C1C2
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