Product Summary

The AD652AQ 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 allows the conversion time and resolution to be optimized for specific applications. The AD652AQ uses a variation of the popular charge-balancing technique to perform the conversion function. The AD652AQ uses an external clock to define the full-scale output frequency, rather than relying on the stability of an external capacitor. The result is a more stable, more linear transfer function, with significant application benefits in both single- and multichannel systems.

Parametrics

AD652AQ absolute maximum ratings: (1)Total Supply Voltage +VS to -VS: 36 V; (2)Maximum Input Voltage (Figure 6): 36 V; (3)Maximum Output Current (Open Collector Output): 50 mA; (4)Amplifier Short Circuit to Ground : Indefinite; (5)Storage Temperature Range: Cerdip: -65℃ to +150℃; (6)Storage Temperature Range: PLCC: -65℃ to +150℃.

Features

AD652AQ features: (1)Full-Scale Frequency (Up to 2 MHz) Set by External System Clock; (2)Extremely Low Linearity Error (0.005% max at 1 MHz FS, 0.02% max at 2 MHz FS); (3)No Critical External Components Required; (4)Accurate 5 V Reference Voltage; (5)Low Drift (25 ppm/C max); (6)Dual or Single Supply Operation; (7)Voltage or Current Input; (8)MIL-STD-883 Compliant Versions Available.

Diagrams

AD652AQ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD652AQ
AD652AQ

IC V-F CONVERTER SYNC 16CDIP
Data Sheet
0-1: $11.68
1-25: $9.92
25-100: $9.22
100-250: $8.46
250-500: $8.06
500-1000: $7.78
AD652AQ/+
AD652AQ/+

IC V-F CONV SYNCH MONO 5V 16CDIP
Data Sheet
0-25: $11.75
AD652AQZ
AD652AQZ
Analog Devices Inc
IC V-F CONVERTER SYNC 16-CDIP
Data Sheet
Negotiable