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TS421-8IST View Datasheet(PDF) - STMicroelectronics

Part Name
Description
View to exact match
TS421-8IST
ST-Microelectronics
STMicroelectronics ST-Microelectronics
TS421-8IST Datasheet PDF : 32 Pages
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TS419-TS421
Fig. 98 : Differential Input Amplifier
Configuration
Input capacitance C can be calculated by the
following formula using the -3dB lower frequency
required. (FL is the lower frequency required)
C 1 (F)
2 π R1 FL
Note : This formula is true only if:
FCB
=
1
942000 × C B
(Hz )
is ten times lower than FL.
The following bill of material is an example of a
differential amplifier with a gain of 2 and a -3dB
lower cuttoff frequency of about 80Hz.
Components :
Designator
Part Type
R1
20k / 1%
R2
20k / 1%
C
100nF
CB=CS
U1
1µF
TS419/21
29/32
 

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