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LNA 60dB D100
#7
Dodao sam još MultiFeedback HighPass filtraciju (-40dB/dec) koja je još inverting, pa imamo na kraju ukupnu nepromeljivu fazu.
Ukupna HighPass filtracija je sada sa strminom (-80dB/dec), što se vidi iz trečeg grafa u shemi.

Tu je još Offset trimmpot da anuliramo i taj mali offset ako se nam je nakupio u MFB filtraciji...

Izlaz iz MFB filtracije može biti i izlaz OUT_{5Hz...WideBand},
ali ako nam je merna oprema dalje sa niskom impedancom, zatreba onda još dodatan izlazni Buffer!

HighPass MultiFeedback izračuna se putem obrazca iz Aplic.Nota AN Analog MT-220

[Image: attachment.php?aid=42374]

H nam je odabrano pojačanje u V/V, mi zatrebamo pojačanje 1V/V (- zbog invertera ne pišemo)
alpha nam je 1/Q, gdje nam je Q odabran za što zveznije opadanje u odzivu, bez peakinga,
to je inače 1/(sqrt(2)) ili 0,707
Fo odabrali smo 5Hz
C1=C3 što smo odabrali neku povoljnu vrednost nabavljivosti kondova

[Image: attachment.php?aid=42375]


Attached Files
.pdf   MT-220.pdf (Size: 95,15 KB / Downloads: 5)
.jpg   HPF MFB.jpg (Size: 46,01 KB / Downloads: 227)
.jpg   ULNA ZXTN2018-2027 OPA1611 2X SUM MFB.JPG (Size: 398,44 KB / Downloads: 247)
LP
Dragan
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Messages In This Thread
LNA 60dB D100 - by Dragan100 - 03-02-2024, 06:15 PM
RE: LNA 60dB D100 - by savan - 03-17-2024, 10:33 AM
RE: LNA 60dB D100 - by ronovar - 03-17-2024, 09:20 PM
RE: LNA 60dB D100 - by Majda - 03-21-2024, 09:46 AM
RE: LNA 60dB D100 - by Dragan100 - 03-23-2024, 04:49 PM
RE: PCB Design Routing - by Dragan100 - 03-04-2024, 03:29 PM
LNA 60dB D100 - by Dragan100 - 03-04-2024, 05:14 PM
RE: LNA 60dB D100 - by Dragan100 - 03-04-2024, 05:46 PM
RE: LNA 60dB D100 - by Dragan100 - 03-04-2024, 05:51 PM
RE: LNA 60dB D100 - by Dragan100 - 03-04-2024, 08:56 PM
RE: LNA 60dB D100 - by Dragan100 - 03-04-2024, 09:53 PM
RE: LNA 60dB D100 - by Bocko - 03-05-2024, 08:23 AM
RE: LNA 60dB D100 - by Dragan100 - 03-06-2024, 08:50 PM
RE: LNA 60dB D100 - by ronovar - 03-07-2024, 06:51 AM
RE: LNA 60dB D100 - by savan - 03-07-2024, 08:00 AM
RE: LNA 60dB D100 - by Dragan100 - 03-07-2024, 12:35 PM
RE: LNA 60dB D100 - by Khadgar2007 - 03-07-2024, 08:43 AM
RE: LNA 60dB D100 - by savan - 03-07-2024, 11:49 AM
RE: LNA 60dB D100 - by savan - 03-07-2024, 01:55 PM
RE: LNA 60dB D100 - by ronovar - 03-07-2024, 11:10 PM
RE: LNA 60dB D100 - by Dragan100 - 03-08-2024, 07:31 AM
RE: LNA 60dB D100 - by Khadgar2007 - 03-08-2024, 08:50 AM
RE: LNA 60dB D100 - by savan - 03-08-2024, 11:08 AM
RE: LNA 60dB D100 - by Khadgar2007 - 03-08-2024, 11:46 AM
RE: LNA 60dB D100 - by savan - 03-08-2024, 01:42 PM
RE: LNA 60dB D100 - by Khadgar2007 - 03-08-2024, 03:32 PM
RE: LNA 60dB D100 - by ronovar - 03-08-2024, 03:58 PM
RE: LNA 60dB D100 - by savan - 03-08-2024, 06:15 PM
RE: LNA 60dB D100 - by Khadgar2007 - 03-08-2024, 06:23 PM
RE: LNA 60dB D100 - by Khadgar2007 - 03-08-2024, 06:37 PM
RE: LNA 60dB D100 - by savan - 03-08-2024, 06:51 PM
RE: LNA 60dB D100 - by ronovar - 03-08-2024, 07:18 PM
RE: LNA 60dB D100 - by savan - 03-08-2024, 08:13 PM
RE: LNA 60dB D100 - by Dragan100 - 03-09-2024, 10:56 AM
RE: LNA 60dB D100 - by savan - 03-09-2024, 12:36 PM
RE: LNA 60dB D100 - by savan - 03-09-2024, 03:12 PM
RE: LNA 60dB D100 - by Dragan100 - 03-09-2024, 03:27 PM
RE: LNA 60dB D100 - by savan - 03-09-2024, 04:08 PM
RE: LNA 60dB D100 - by Dragan100 - 03-09-2024, 05:05 PM
RE: LNA 60dB D100 - by savan - 03-09-2024, 07:36 PM
RE: LNA 60dB D100 - by Dragan100 - 03-09-2024, 08:48 PM
RE: LNA 60dB D100 - by savan - 03-09-2024, 10:10 PM
RE: LNA 60dB D100 - by Dragan100 - 03-10-2024, 09:54 AM
RE: LNA 60dB D100 - by savan - 03-09-2024, 11:10 PM
RE: LNA 60dB D100 - by savan - 03-10-2024, 09:57 AM
RE: LNA 60dB D100 - by savan - 03-10-2024, 10:58 AM
RE: LNA 60dB D100 - by Khadgar2007 - 03-10-2024, 11:38 AM
RE: LNA 60dB D100 - by Khadgar2007 - 03-10-2024, 11:41 AM
RE: LNA 60dB D100 - by savan - 03-10-2024, 11:49 AM
RE: LNA 60dB D100 - by Braca - 03-10-2024, 12:38 PM
RE: LNA 60dB D100 - by savan - 03-10-2024, 03:50 PM
RE: LNA 60dB D100 - by Dragan100 - 03-10-2024, 06:30 PM
RE: LNA 60dB D100 - by Braca - 03-10-2024, 06:34 PM
RE: LNA 60dB D100 - by Dragan100 - 03-10-2024, 07:06 PM
RE: LNA 60dB D100 - by savan - 03-10-2024, 08:51 PM
RE: LNA 60dB D100 - by savan - 03-10-2024, 09:19 PM
RE: LNA 60dB D100 - by Dragan100 - 03-10-2024, 09:36 PM
RE: LNA 60dB D100 - by Braca - 03-11-2024, 01:24 PM
RE: LNA 60dB D100 - by savan - 03-11-2024, 01:26 PM
RE: LNA 60dB D100 - by Dragan100 - 03-12-2024, 09:17 AM
RE: LNA 60dB D100 - by Dragan100 - 03-12-2024, 09:56 AM
RE: LNA 60dB D100 - by Dragan100 - 03-12-2024, 10:52 AM
RE: LNA 60dB D100 - by Dragan100 - 03-12-2024, 01:06 PM
RE: LNA 60dB D100 - by savan - 03-12-2024, 03:40 PM
RE: LNA 60dB D100 - by Dragan100 - 03-12-2024, 05:34 PM
RE: LNA 60dB D100 - by savan - 03-12-2024, 03:43 PM
RE: LNA 60dB D100 - by savan - 03-12-2024, 07:22 PM
RE: LNA 60dB D100 - by Dragan100 - 03-12-2024, 09:04 PM
RE: LNA 60dB D100 - by savan - 03-12-2024, 10:19 PM
RE: LNA 60dB D100 - by savan - 03-14-2024, 03:23 PM
RE: LNA 60dB D100 - by Dragan100 - 03-14-2024, 03:32 PM
RE: LNA 60dB D100 - by savan - 03-14-2024, 04:19 PM
RE: LNA 60dB D100 - by Khadgar2007 - 03-14-2024, 06:28 PM
RE: LNA 60dB D100 - by savan - 03-14-2024, 07:19 PM
RE: LNA 60dB D100 - by savan - 03-14-2024, 07:37 PM
RE: LNA 60dB D100 - by Dragan100 - 03-15-2024, 10:07 AM
RE: LNA 60dB D100 - by Dragan100 - 03-15-2024, 11:11 AM
RE: LNA 60dB D100 - by savan - 03-15-2024, 12:14 PM
RE: LNA 60dB D100 - by savan - 03-15-2024, 12:20 PM
Memory input stage - by Majda - 03-16-2024, 08:50 AM
RE: Memory input stage - by Dragan100 - 03-18-2024, 10:50 AM
RE: PCB Design Routing - by ronovar - 03-04-2024, 09:59 PM
RE: PCB Design Routing - by Vlada021 - 03-05-2024, 01:05 PM
RE: PCB Design Routing - by ronovar - 03-05-2024, 08:04 PM
RE: PCB Design Routing - by ronovar - 03-08-2024, 11:08 AM
RE: PCB Design Routing - by ronovar - 03-08-2024, 11:35 PM
RE: PCB Design Routing - by Braca - 03-09-2024, 09:26 AM
RE: PCB Design Routing - by Khadgar2007 - 03-09-2024, 09:55 AM
RE: PCB Design Routing - by Braca - 03-09-2024, 11:10 AM
RE: PCB Design Routing - by Dragan100 - 03-09-2024, 11:31 AM
RE: PCB Design Routing - by ronovar - 03-09-2024, 02:10 PM
RE: PCB Design Routing - by Braca - 03-09-2024, 03:02 PM
RE: PCB Design Routing - by Khadgar2007 - 03-09-2024, 03:05 PM
RE: PCB Design Routing - by ronovar - 03-10-2024, 12:47 PM
RE: PCB Design Routing - by ronovar - 03-11-2024, 12:28 PM
RE: PCB Design Routing - by savan - 03-11-2024, 01:22 PM
RE: PCB Design Routing - by ronovar - 03-11-2024, 02:30 PM
RE: PCB Design Routing - by ronovar - 03-11-2024, 04:06 PM
RE: PCB Design Routing - by Dragan100 - 03-11-2024, 05:19 PM
RE: PCB Design Routing - by Braca - 03-11-2024, 05:53 PM
RE: PCB Design Routing - by ronovar - 03-11-2024, 05:57 PM
RE: PCB Design Routing - by Braca - 03-11-2024, 06:37 PM
RE: PCB Design Routing - by ronovar - 03-12-2024, 03:21 PM
RE: PCB Design Routing - by Braca - 03-12-2024, 04:17 PM
RE: PCB Design Routing - by ronovar - 03-15-2024, 11:19 AM
RE: PCB Design Routing - by ronovar - 03-15-2024, 11:51 AM
RE: PCB Design Routing - by pmiroslav81 - 03-15-2024, 09:25 PM

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