AD652 Datasheet PDF | Analog Devices

Analog Devices AD652

The AD652 synchronous voltage-to-frequency converter (SVFC) is a powerful building block for precision analog-todigital conversion, offering typical nonlinearity of 0.002% (0.005% maximum) at a 100 kHz output frequency. The inherent monotonicity of the transfer function and wide range of clock frequencies allow the conversion time and resolution to be optimized for specific applications. The AD652 is available in five performance grades.

Part No.	AD652
Datasheet	AD652 Download
Manufacturer	Analog Devices
Description	Monolithic Synchronous Voltage-to-Frequency Converter
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FEATURES

Full-scale frequency (up to 2 MHz) set by 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 Accurate 5 V reference voltage Low drift (25 ppm/°C max) Dual- or single-supply operation Voltage or current input MIL-STD-883 compliant versions available PRODUCT

DESCRIPTION

The 20-lead PLCC-packaged JP and KP grades are specified for operation over the 0°C to +70°C commercial temperature range. The 16-lead CERDIP-packaged AQ and BQ grades are specified for operation over the −40°C to +85°C industrial temperature range. The AD652SQ is available for operation over the full −55°C to +125°C extended temperature range. PRODUCT HIGHLIGHTS 1. The use of an external clock to set the full-scale frequency allows the AD652 to achieve linearity and stability far superior to other monolithic VFCs. By using the same clock to drive the AD652 and set the counting period (through a suitable divider), conversion accuracy is maintained independent of variations in clock frequency.