Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
The ADE measurement core includes active, reactive, and apparent energy calculations, as well as voltage and current rms measure- ments. This information is accessible for energy billing by using the built-in energy scalars. Many power line supervisory features such as SAG, peak, and zero crossing are included in the energy measurement DSP to simplify energy meter design.
The microprocessor functionality includes a single cycle 8052 core, a full RTC with a power supply backup pin, an SPI or I2C interface, and two independent UART interfaces. The ready to use information from the ADE core reduces the requirement for program memory size, making it easy to integrate complicated design into 62 kB of flash memory.
The ADE5169 includes a 104-segment LCD driver and the ADE5569 includes a 108-segment LCD driver, each with the capability to store up to four LCD screens in memory. This driver generates voltages capable of driving LCDs up to 5 V.
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
All-Electronic Power and Energy Meters
(Analog Dialogue, Vol. 33, No. 2, February, 1999)
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(Reprinted with permission from Metering International where it was first printed in Issue 3, 2003)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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