Overview
The ADE7566ASTZF16 is a highly integrated energy metering IC produced by Analog Devices Inc. This component combines an analog front end, a fixed-function digital signal processing (DSP) solution, and an enhanced 8052 microcontroller (MCU) core. It is designed to facilitate the development of electronic energy meters with LCD displays. The ADE7566ASTZF16 integrates various features such as real-time clock (RTC), LCD driver, and multiple peripherals, making it a comprehensive solution for energy measurement applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Operating Temperature Range | −40°C to +85°C | °C | |
| Package Type | 64-Lead LQFP | ||
| Power Consumption (Active Mode) | 4 mA to 1.6 mA (PLL clock dependent) | mA | |
| Power Consumption (Battery Mode) | 3.2 mA to 400 µA (PLL clock dependent) | mA/µA | |
| Power Consumption (RTC Mode) | 1.5 µA | µA | |
| Power Consumption (RTC and LCD Mode) | 38 µA (LCD charge pump enabled) | µA | |
| Reference Voltage | 1.2 V ± 0.1% (10 ppm/°C drift) | V | |
| Active Energy Measurement Error | 0.1% of reading over a dynamic range of 1000 to 1 at 25°C | % | |
| Reactive Energy Measurement Error | 0.5% of reading over a dynamic range of 1000 to 1 at 25°C | % | (ADE7169 and ADE7569 only) |
| Irms Measurement Error | 0.5% of reading over a dynamic range of 500 to 1 at 25°C | % | |
| ADC Offset Error | ±10 mV (PGA1 = PGA2 = 1), ±1 mV (PGA1 = 16) | mV | |
| Input Impedance (DC) | 770 kΩ | kΩ |
Key Features
- High accuracy active, reactive, and apparent energy measurements using proprietary analog-to-digital converters (ADCs) and digital signal processing (DSP).
- Integrated 8052 MCU core with real-time clock (RTC), counter for seconds, minutes, and hours, and automatic battery switchover for RTC backup.
- LCD driver operation with 108-segment driver for ADE7566/ADE7569 and 104-segment driver for ADE7116/ADE7156/ADE7166/ADE7169.
- Low power consumption modes including battery mode, sleep mode, and RTC mode.
- On-chip peripherals such as UART interface, SPI or I2C interface, watchdog timer, and power supply management with user-selectable levels.
- Embedded digital crystal frequency compensation for calibration and temperature variation.
- Internal adjustable drive voltages up to 5 V independent of power supply level.
Applications
- Electronic energy meters with LCD displays.
- Smart metering systems requiring high accuracy energy measurements.
- Industrial and commercial energy monitoring applications.
- Automated meter reading (AMR) and advanced metering infrastructure (AMI) systems.
Q & A
- What is the operating temperature range of the ADE7566ASTZF16?
The operating temperature range is −40°C to +85°C.
- What types of energy measurements does the ADE7566ASTZF16 support?
The ADE7566ASTZF16 supports active, reactive, and apparent energy measurements.
- What is the accuracy of active energy measurement for the ADE7566ASTZF16?
The active energy measurement error is 0.1% of reading over a dynamic range of 1000 to 1 at 25°C.
- Does the ADE7566ASTZF16 have an integrated LCD driver?
Yes, it has an integrated LCD driver with 108-segment driver capability.
- What are the power consumption modes of the ADE7566ASTZF16?
The power consumption modes include active mode, battery mode, sleep mode, and RTC mode.
- What is the input impedance of the analog inputs on the ADE7566ASTZF16?
The input impedance is 770 kΩ.
- Does the ADE7566ASTZF16 support communication interfaces like UART, SPI, or I2C?
Yes, it supports UART, SPI, and I2C interfaces.
- What is the maximum drive voltage for the LCD driver in the ADE7566ASTZF16?
The maximum drive voltage is up to 5 V, independent of the power supply level.
- Can the ADE7566ASTZF16 operate with a low battery supply?
Yes, it can operate down to 2.4 V with an ultralow battery supply current of 1.5 µA.
- What is the purpose of the embedded digital crystal frequency compensation in the ADE7566ASTZF16?
The embedded digital crystal frequency compensation is for calibration and temperature variation, offering a resolution of 2 ppm.
