GENERAL DESCRIPTION
The ADE7769 is a high accuracy electrical energy metering IC. It is a pin reduction version of the ADE7755 with an enhanced, precise oscillator circuit that serves as a clock source to the chip. The ADE7769 eliminates the cost of an external crystal or resonator, thus reducing the overall cost of a meter built with this IC. The chip directly interfaces with the shunt resistor.

FEATURES
On-chip oscillator as clock source
High accuracy, supports 50 Hz/60 Hz IEC62053-21
Less than 0.1% error over a dynamic range of 500 to 1
Supplies average real power on frequency outputs F1 and F2
High frequency output CF calibrates and supplies instantaneous real power
CF output remains logic high when ADE7769 is under no-load threshold
Logic output REVP indicates a potential miswiring or negative power
Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2)
Proprietary ADCs and DSPs provide high accuracy over large variations in environmental conditions and time
On-chip power supply monitoring
On-chip creep protection (no-load threshold)
On-chip reference 2.45 V (20 ppm/°C typical) with external overdrive capability
Single 5 V supply, low power (20 mW typical)
Low cost CMOS process