The Analog Devices AD650SD is a versatile Voltage-to-Frequency and Frequency-to-Voltage converter IC capable of 1 MHz operation. It features low nonlinearity and is housed in a 14-CDIP package.
The AD650SD/883B is a Volt to Frequency and Frequency to Volt converter manufactured by Analog Devices / Maxim Integrated. It supports a maximum frequency of 1 MHz and offers a linearity of ±0.1%.