where do i find Programmable Gain Amplifier(PGA) for Psoc4 BLE in creator

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Anonymous
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Hello all,

   

I am trying to amplify low level signal by using Programmable Gain Amplifier (PGA)

   

 

   

but for Psoc 4 BLE there is no Such PGA component in psoc Creator.

   

but it is available for PSoc3 Devices.

   

does name of PGA name is changed for PSOc 4 ble or is there any alternative component for PGA..

   

 

   

 

   

Thanks in advance

   

Amol

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1 Solution
Bob_Marlowe
Level 10
Level 10
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There is no pga for PSoC4. You may use an OpAmp component and connect some resistors externally to adjust for the needed gain.

   

 

   

Bob

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2 Replies
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

There is no pga for PSoC4. You may use an OpAmp component and connect some resistors externally to adjust for the needed gain.

   

 

   

Bob

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ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

One way of making a PGA, SAR is set to use bypassed Vref in order

   

to get Vref for OpAmp. You can change the mux to switch the fdbk

   

loop. Might get a little less G error due to Mux Rdson. And better Zin

   

to the OpAmp. Also mux allows more than one switch on at a time so

   

possible to get 16 gains out of 4 R's.

   

 

   

Don't forget to bypass P1_7, the ref bypass option of SAR.

   

 

   

Regards, Dana.

   

 

   

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