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 Electronic Circuits Schematics Projects

# 1-Hz to 100-MHz VFC features

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Category: Converter Circuits / Voltage to Current
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The VFC (voltage-to-frequency-converter) circuit in Figure 1 achieves a wider dynamic range and a higher full-scale output frequency100 MHz with 10% overrange to 110 MHzby a factor of 10 over any commercially available converter. The circuit`s 160-dB dynamic range spans eight decades for a 0 to 5V input range and allows continuous operation down to 1 Hz.Additional specifications include 0.1% linearity, a 250-ppm/°C gain/temperature coefficient, a 1-Hz/°C zero-point shift, and a 0.1% frequency shift for a 10% power-supply- voltage variation. A single 5V supply powers the circuit. Chopper-stabiliz visit page.

Additional specifications include 0.1% linearity, a 250-ppm/°C gain/temperature coefficient, a 1-Hz/°C zero-point shift, and a 0.1% frequency shift for a 10% power-supply- voltage variation. A single 5V supply powers the circuit. Chopper-stabiliz http://www.edn.com/article/CA6250015.html

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