DESCRIPTION

· The AD652 is a monolithic synchronous voltage-to-frequency converter (SVFC) designed for precision analog-to-digital conversion.

· It employs a charge-balancing technique and uses an external clock to define the full-scale output frequency, enhancing stability and linearity.

· The device features a precision low-drift reference and on-chip thin-film scaling resistors to minimize gain drift and initial gain error.

· Available in multiple performance grades, it operates over various temperature ranges, from commercial (0°C to +70°C) to extended (-55°C to +125°C).

FEATURES

· Full-scale frequency up to 2 MHz, set by an external system clock.

· Extremely low linearity error: 0.005% max at 1 MHz FS, 0.02% max at 2 MHz FS.

· No critical external components required; includes an accurate 5V reference voltage.

· Low drift (25 ppm/°C max) and supports dual- or single-supply operation.

· MIL-STD-883 compliant versions available.

APPLICATIONS

· Precision analog-to-digital conversion in both single- and multichannel systems.

· Isolated analog signal transmission when configured as a synchronous F/V converter.

· Suitable for applications requiring high stability and linearity, such as in industrial and military environments.