Design of High Precision I/F Convert Circuit Based on FPGA

Accelerators are the core components of navigation systems, and the signal they outputs is usually in form of current, which is analog signal. In order to convenience decode for the navigation computer, the signal needs a current-to-frequency convert circuit!

AD652: Voltage (Current)-to-Frequency Converter

Clock Input Frequency: 4 MHz

Maximum Input Voltage: +VS = 36 V

The analog input signal to the AD652 is converted to digital frequency output pulses which can be counted by simple digital means. The reference frequency (clock input) is generated by the FPGA (Timer/Counter).

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