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???
01/28/08 14:30
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 		 #150013 - progressive evolution
Responding to: ???'s previous message
Erik Malund said:
you express concerns about price and ask for picoamp offsets.

It seems than in everything you approach it is "I want the best" and "I will not pay for it".

Are you in the process of scouring the stores for stuff you believe you can make cheaper?

Erik


NOT at all a flame ,At first I was thinking about resistive humidity sensors which shows very high impedance on the lower side of the scale. I was then asked for the application and till that I had changed my mind to capacitive ones , which requires easy scheme , even if I dont use a 555 we can use the micro itself to charge and discharge the sensor!, and when I was thinking this you suggested me senserion , in which even this wasnt required , a progressive evolution ....

AP

List of 26 messages in thread
TopicAuthorDate
Opamp datasheet Question            01/01/70 00:00      
   page 3            01/01/70 00:00      
      TLC 271            01/01/70 00:00      
   Use input bias current            01/01/70 00:00      
      Use input bias current            01/01/70 00:00      
         ?what application            01/01/70 00:00      
         More info?            01/01/70 00:00      
         so, you have left the "low cost" area            01/01/70 00:00      
         opa129            01/01/70 00:00      
         I find it always a bit funny...            01/01/70 00:00      
            It's like those high-res PC sound cards ...            01/01/70 00:00      
            More details + missing detail from datasheet            01/01/70 00:00      
               Frequency control in oscillator            01/01/70 00:00      
                  relaxation oscillator            01/01/70 00:00      
                     Ssshh..            01/01/70 00:00      
                        Ssshh..            01/01/70 00:00      
                           Ap you are at it again - not a flame            01/01/70 00:00      
                              progressive evolution            01/01/70 00:00      
               have you had a look at            01/01/70 00:00      
                  sensirion.com            01/01/70 00:00      
               Link and answer            01/01/70 00:00      
                  www.hygrosens.de            01/01/70 00:00      
                     It's a double CMOS555, e.g.TLC556            01/01/70 00:00      
   Another sensor and schematic using 555            01/01/70 00:00      
      Another sensor and schematic using 555            01/01/70 00:00      
         Price            01/01/70 00:00      

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