Voltage frequency transformation circuit diagram composed of AD654

Published:2011/8/10 6:34:00 Author:nelly | Keyword: voltage frequency, transformation | From:SeekIC

As shown in the figure, it is the low cost voltage frequency converter which is composed of AD654. Connecting the needed devices R1 and C1 as the figure, then it can be the VFC application circuit. The power voltage still can ensure the performance even drop to 4.5V, ensuring the performance to 16.5V, the maximum power consumption is 3mA(no load). The maximum frequency is 520KHz. The range of input voltage is 0~4V. The input measuring range Vi is decided by R1, Vi/R1=1mA. For example, Vi=0~1V, taking R1=1kΩ, Vi=0~5V, taking R1=5kΩ. The output frequency range is determined by C1, Fomax=1/10 C1, the frequency unit is KHz, C1's unit is μF.



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