AD652BQ

AD652 is a monolithic synchronous voltage-to-frequency converter. 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 device uses a variation of the charge-balancing technique to perform the conversion function. The device 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. The analogue and digital sections of the device have been designed to allow operation from a single-ended power source, simplifying its use with isolated power supplies.

• Full-scale frequency (upto 2MHz) set by external system clock
• Bandwidth is 14MHz typ
• No critical external components required
• Accurate 5V reference voltage
• Input bias current is 0.5µA typ
• Dual-or-single-supply operation
• Voltage or current input
• Gain drift (100kHz) is 25ppm/°C max
• 1MHz linearity is 0.005% max
• Operating temperature is −40°C to +85°C, packaging style is CERDIP (Q-16)

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