ADE7518ASTZF8-RL【PDF 1/128 页】IC ENERGY METER MCU 8K 64LQFP

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Single-Phase Energy Measurement IC with

8052 MCU, RTC, and LCD Driver

ADE7518

GENERAL FEATURES

Wide supply voltage operation: 2.4 V to 3.7 V

Internal bipolar switch between regulated and battery inputs

Ultralow power operation with power saving modes

Full operation: 4 mA to 1.6 mA (PLL clock dependent)

Battery mode: 3.2 mA to 400 μA (PLL clock dependent)

Sleep mode

Real-time clock (RTC) mode: 1.5 μA

RTC and LCD mode: 27 μA

Reference: 1.2 V ± 0.1% (10 ppm/°C drift)

64-lead RoHS package option

Low profile quad flat package (LQFP)

Operating temperature range: ?40°C to +85°C

ENERGY MEASUREMENT FEATURES

Proprietary analog-to-digital converters (ADCs) and digital

signal processing (DSP) provide high accuracy active

(WATT), reactive (VAR), and apparent energy (VA)

measurement

Less than 0.1% error on active energy over a dynamic

range of 1000 to 1 @ 25°C

Less than 0.5% error on reactive energy over a dynamic

range of 1000 to 1 @ 25°C

Less than 0.5% error on root mean square (rms)

measurements over a dynamic range of 500 to 1 for

current (I rms ) and 100 to 1 for voltage (V rms ) @ 25°C

Supports IEC 62053-21, IEC 62053-22, IEC 62053-23,

EN 50470-3 Class A, Class B, and Class C, and ANSI C12-16

Differential input with programmable gain amplifiers (PGAs)

supports shunts and current transformers

High frequency outputs proportional to I rms , active, reactive,

or apparent power (AP)

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

MICROPROCESSOR FEATURES

8052-based core

Single-cycle 4 MIPS 8052 core

8052-compatible instruction set

32.768 kHz external crystal with on-chip PLL

Two external interrupt sources

External reset pin

Low power battery mode

Wake-up from I/O, alarm, and universal asynchronous

receiver/transmitter (UART)

LCD driver operation

Real-time clock

Counter for seconds, minutes, and hours

Automatic battery switchover for RTC backup

Operation down to 2.4 V

Ultralow battery supply current: 1.5 μA

Selectable output frequency: 1 Hz to 16.384 kHz

Embedded digital crystal frequency compensation for

calibration and temperature variation: 2 ppm resolution

Integrated LCD driver

108-segment driver

2×, 3×, or 4× multiplexing

LCD voltages generated with external resistors

On-chip peripherals

UART, SPI or I 2 C, and watchdog timer

Power supply management with user-selectable levels

Memory: 16 kB flash memory, 512 bytes RAM

Development tools

Single-pin emulation

IDE-based assembly and C-source debugging

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

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