Voltage to Frequency Converters

Analog Devices has the widest range of voltage-to-frequency converters (VFCs) for the instrumentation, industrial, and automation markets. They are ideally suited for use in analog-to-digital conversion, long-term integration, linear frequency modulation and demodulation, and frequency-to-voltage conversion. ADI’s latest family of VFCs, the AD774x series, is based on Σ-Δ technology and provides high linearity in tiny packages at low cost.
Product Selection Table

V-F Converters

V-F Converters

Part#ArchitectureOutput FrequencyVoltage Supply (V)Isupply Pos (max)Clock Speed (MHz)Vin max (V)Accuracy (%)ChannelsVREFUS Price 1000 to 4999
AD7740 Synchronous 500 kHz 3 to 5.25 1.5 mA 1 MHz 2.5 1 - - $0.91
AD7741 Synchronous 3072 kHz 4.75 to 5.25 8 mA 6.144 MHz 2.5 2 - - $2.13
AD652 Synchronous 2500 kHz +/- 6 to +/- 15 15 mA 5 MHz 10 2 - - $10.22
AD654 Non-Synchronous 500 kHz +/- 5 to +/- 18 2.5 mA - 14 0.4 - - $3.76
ADVFC32 Non-Synchronous 500 kHz +/- 9 to +/- 18 8 mA - 10 0.2 - - $6.32
AD650 Non-Synchronous 1000 kHz +/- 9 to +/- 18 8 mA - 11 0.1 - - $8.42
AD537 Non-Synchronous 150 kHz +/- 5 to +/- 18 2.5 mA - 11 0.25 - 1 $10.54