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AD9634芯片的驱动芯片ADA4930-1的参考电路问题

Category: Hardware
Product Number: ADA4930-1


According to the driver circuit design provided in the AD9634 chip manual, the resistance and feedback loops of the ADA4930-1 chip are very different from the resistance and feedback loops in the circuit design provided in the ADA4930-1 chip. The specific difference is shown in the figure below. The RG resistance value in the figure does not match the one described in the ADA4930-1 chip manual, and the circuit designs in the two chip manuals are different. How should this problem be solved?

I have moved this question into the forum for the AD9634, they should be able to help you with this question.

  • Hi, these are essentially two different setups. the best way to design your circuit would be to use the DIFFAMP-CALC tool 

  • Hi, I used Multisim software to simulate and analyze the two circuits, and the output of the circuit described in the chip manual of the ADA4930-1 chip in the simulated circuit is a nice sine waveform, but the output waveform of the reference circuit in the chip manual of the AD9634 chip is a bit strange, can this indicate that there is a big problem with the reference circuit in the chip manual

  • I am not familiar with multisim software. I know that the DIFFAMP-CALC tool will get you a circuit that works in the setup you want. You can then wire the circuit in LTSpice with the values from DIFFAMP-CALC tool and simulate it. This has worked for me. If you have specific questions about the ADA4930, please post them in the ADC Drivers - EngineerZone (analog.com) forum. I will close this discussion now.