voltage-to-frequencyconverters Type Range Linearity F max LM331 1 kHz/V 0.003% 10 kHz AD537 1 mA 0.25% 150 kHz AD7740 2.5 V 1%/kHz 500 kHz Synchronous XR4151 1 kHz/V 0.05% 10 kHz VFC110 400 µA 0.02% 4 MHz 2.7 Other architectures Some physical quantities lend themselves well to particular conversion techniques. Linear
