Bauteil: AD5933

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  Problems to compare impedance AD5933 and Agilent LCR meter E4980A

  Hello, I´m currently working with the impedance converter AD5933. I´m having some problems to compare the data that I get from the AD5933 with a LRC meter. I start my measurement by configurating my frequency start, the increment and number of increments. In my

  What measurement setup of the AD5933 are you using? My setup is a AD5933 eval board on which I had to place a gain resistor RFB of 10k. In the attachment you can see the measurement of a 10k resistor. The calibration was done with

  Analog Circuits ·Daphne ·2024-08-07 06:12 ·23 Replies

• File

  codePart.cpp

  frequency int real, imag, i = 0, cfreq = VALUE_fstart / 1000; // Initialize the frequency sweep if (!(AD5933::setPowerMode(POWER_STANDBY) && // place in standby AD5933::setControlMode(CTRL_INIT_START_FREQ) && // init start freq AD5933::setControlMode(CTRL_START_FREQ_SWEEP))) // begin frequency sweep { Serial.println

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-02 11:48

• Image

  Tabellen und Text zum AD5933 Ausgangswiderstand

  AD5933 output resistance depends on output voltage setup Table 5. Voltage Levels Respective Bias Levels for 3.3 V Table 10. Control Register Map (D10 to D9) Output Resistance 1 200 2 2.4k 3 1k 4 600 AD5933

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-07 06:11 · Screenshots

  
• Image

  Messdiagramme einer AD5933 Impedanzmessung

  AD5933 measurement (Rref=100000Ohm) calib raw signals real imag [LSB] [LSB] raw signals real imag [LSB] [LSB] phase phase[°] calib raw meas result f[Hz] impedance |Z| [Ohm] f[Hz]

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-05 18:41 · Screenshots

  
• Image

  Diagramme einer AD5933 Impedanzmessung

  AD5933 measurement (Rref=100000Ohm) calib raw signals real imag [LSB] f[Hz] raw signals [LSB] f[Hz] phase[°] calib raw meas result f[Hz] impedance [Z [Ohm] f[Hz]

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-05 18:54 · Screenshots

  
• Image

  Diagramme einer AD5933 Messung

  AD5933 measurement (Rref=100000Ohm) calib raw signals real imag [LSB] f[Hz] raw signals real imag [LSB] f[Hz] phase calib raw meas result phase[°] f[Hz] impedance [Z| Ohm] f[Hz]

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-06 08:25 · Diagrams

  
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  Schaltplan eines Analog Front End Evaluation Boards

  AND ARTWORK Analog Front End VDD RFB DNI R1 U1-B 7 5 R4 20K C2 C3 2 T2 C1 RK2 RK2 20K LK1 LK2 U2 AD5933BRSZ AGND DGND SCL 15 SCL CS 14 SDA SDA DOUT AGND_RFB 13 AGND_SIG 12 VDD VIN 4 RFB T7 6 VOUT AVDD_RFB 11 AVDD_SIG 10 N/G 8 EXT_CLK DVDS 7 EXT_OUT 3 CLK1 16MHz C10 0.1uF VDD GND 3 D/P C9 10uF C8 0.1uF VDD U1-A R7 C7 47nF R8 U1-C VDD C5 C6 0.1uF Figure 31. EVAL-AD5933EBZ USB Schematic

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-01 19:46 · Schematics

  
• Image

  Schaltplan eines Analog Front End Evaluation Boards

  AND ARTWORK Analog Front End VDD RFB DNI R1 U1-B 7 5 R4 20K C2 C3 2 T2 C1 RK2 RK2 20K LK1 LK2 U2 AD5933BRSZ AGND DGND SCL 15 SCL CS 14 SDA SDA DOUT AGND_RFB 13 AGND_SIG 12 VDD VIN 4 RFB T7 6 VOUT AVDD_RFB 11 AVDD_SIG 10 N/G 8 EXT_CLK DVDS 7 EXT_OUT 3 CLK1 16MHz C10 0.1uF VDD GND 3 D/P C9 10uF C8 0.1uF VDD U1-A R7 C7 47nF R8 U1-C VDD C5 C6 0.1uF 10441-034 Figure 31. EVAL-AD5933EBZ USB Schematic

  in „Problems to compare impedance AD5933 and Agilent LCR meter E4980A“ · Analog Circuits · 2024-08-05 18:54 · Schematics

  

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