The AD652 is a synchronous voltage-to-frequency converter (SVFC) that features extremely low linearity error (0.005% maximum) at a 1 MHz full-scale frequency.
The AD652 is a monolithic synchronous voltage-to-frequency converter (SVEFC) designed for precision analog-to-digital conversion. It utilizes an external system clock to define the full-scale output frequency, ensuring a stable and linear transfer function with low linearity error. The device features a buffered, accurate 5 V reference and operates from dual or single power supplies.
| Full-scale frequency | up to 2 MHz |
|---|---|
| Linearity error | 0.005% max at 1 MHz FS |
| Reference voltage | 5 V |
| Gain drift | 25 ppm/°C max |
| Operating temperature (JP/KP) | 0°C to +70°C |
| Operating temperature (AQ/BQ) | -40°C to +85°C |
| Operating temperature (SQ) | -55°C to +125°C |
The full-scale frequency can be set up to 2 MHz by an external system clock.
No, the device requires no critical external components for operation.
The typical linearity error is 0.002% at a 100 kHz output frequency, with a maximum of 0.005% at 1 MHz.