Filter Designer

Filter: Highpass

Parameter Name	Value
Type:	Highpass, Butterworth
Topology:	Sallen-Key
Order:	6
Number Of Stages:	3
Gain:	177.828 V/V (45 dB)
Corner Frequency:	25 Hz
Allowable Passband Ripple:	1 dB
Corner Frequency Attenuation:	42 dB
Stopband Frequency:	10 Hz
Stopband Attenuation:	-45 dB
Calculated Gain:	177.828 V/V (45 dB)

Parameter Name	Value
Cascade:	1
Topology:	Highpass Sallen-Key, Two Pole
Gain:	5.623 V/V (15 dB)
Quality Factor:	0.518
Min GBW required:	7.277 KHz
Cutoff Frequency:	25 Hz
Calculated Gain:	5.625 V/V (15.002 dB)
Calculated Quality Factor:	0.518

Parameter Name	Value
Cascade:	2
Topology:	Highpass Sallen-Key, Two Pole
Gain:	5.623 V/V (15 dB)
Quality Factor:	0.707
Min GBW required:	9.941 KHz
Cutoff Frequency:	25 Hz
Calculated Gain:	5.623 V/V (15 dB)
Calculated Quality Factor:	0.707

Parameter Name	Value
Cascade:	3
Topology:	Highpass Sallen-Key, Two Pole
Gain:	5.623 V/V (15 dB)
Quality Factor:	1.932
Min GBW required:	27.159 KHz
Cutoff Frequency:	25 Hz
Calculated Gain:	5.623 V/V (15 dB)
Calculated Quality Factor:	1.932

Filter Schematic

HtmlCascade: 1

HtmlCascade: 2

HtmlCascade: 3

Bill Of Materials

Resistors: E192 0.5%
Capacitors: E192 0.5%
Inductors: E192 0.5%

HtmlCascade: 1

Element Name	Used Value	Value	Standard
C1	10uF	10uF	10uF
C2	10uF	10uF	10uF
R1	306.3	306.3	305
R2	1.32K	1.32K	1.32K
R3	2.4K	2.4K	2.4K
R4	11.1K	11.1K	11.1K
U1	7.277 KHz	7.277 KHz

HtmlCascade: 2

Element Name	Used Value	Value	Standard
C1	10uF	10uF	10uF
C2	10uF	10uF	10uF
R1	332.5	332.5	332
R2	1.22K	1.22K	1.21K
R3	1K	1K	1K
R4	4.62K	4.62K	4.64K
U1	9.941 KHz	9.941 KHz

HtmlCascade: 3

Element Name	Used Value	Value	Standard
C1	10uF	10uF	10uF
C2	10uF	10uF	10uF
R1	384.6	384.6	383
R2	1.05K	1.05K	1.05K
R3	1K	1K	1K
R4	4.62K	4.62K	4.64K
U1	27.159 KHz	27.159 KHz