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Recent content by C. Emre ÖZ

  1. C

    AD8428 output offset problem

    AD8428 has fixed gain 2000. I didnt use any resistor in input . I connected sensor directly. My schematic pdf link. https://www.dropbox.com/s/alfm3hmsvz7izc4/ADC_Arm.pdf?dl=0
  2. C

    AD8428 output offset problem

    I added 100nf,10nf,1nf and 10uf capacitor each voltage input. But output voltage is same. I think add resistor Vin+ and Vin- is useful ?
  3. C

    AD8428 output offset problem

    Hi, i use AD8428. +V 4.99V and -V 5.01V if i not connect anythink to +/- input, i see -0.06V from output . If i connecto all input to GND this time i see 24mv from output of AD8428. How can i set offset output voltage ? Thank u
  4. C

    Cannot read microvolt with ADuC 847

    Hi, when i tried without buffer, i can read low voltage but i face off sinusodial noise . I have find filter for 50Hz
  5. C

    Cannot read microvolt with ADuC 847

    i can read high voltage when it is low pga but i have never use without buffer. i must disable chop mode because i need speed, sample speed is 1.3khz
  6. C

    Cannot read microvolt with ADuC 847

    I set range 0 to 40 mV from ADC0CON1 (Datasheet page43) RN2-RN1-RN0 registers. And aduc847 is 24bit adc therefore i have read about nanoV but i coudnt read 20 uV. i calculated as that (0.40V/16777215) .
  7. C

    Cannot read microvolt with ADuC 847

    Hi, i use aduc847 and i set chop mode disable, continuous reading about 1.3KHz, internal reference voltage (1.2V) and i set Primary ADC Range Bits unipolar 0-40mv. I tried reading 20uV but aduc result 0. What is the my problem ? Anyone have an idea ? Thank u.
  8. C

    4 pcs. DS18BS20 in long wire has noise

    All sensors are connect to one pin but each sensor has different cable size (9,11,13,15). first one hour every thing is perfect i sensed 55 degrees each sensor fix but after one sensor of them sens 55,0,55,0,0,56,0,0,0,0 and block mcu. When restart the device it reset when communicate with...
  9. C

    Linux Programming Language and Tool Suggestions

    You can use Lazarus. It's ide for free pascal language and cross platform. It's look like delphi.
  10. C

    4 pcs. DS18BS20 in long wire has noise

    I use four ds18b20 in one port and 1. sensor on 9 meters cable, 2. sensor on 11 meters cable, 3. sensor on 13 meters cable, 4. sensor on 15 meters cable . First one hour i didn't face off any problem but one hour later i saw some wrong data and later my mcu was broken. My pull up resistor...
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