ADI ADE7878AACPZ

0.2%2,8 В ~ 3,7 В3 фаза

Overview

The ADE7854, ADE7858, ADE7868, and ADE7878 from Analog Devices are high accuracy, 3-phase electrical energy measurement ICs with serial interfaces and three flexible pulse outputs.Incorporated into these devices are second-order sigma-delta (Σ-Δ) analogue-to-digital converters (ADCs), a digital integrator and reference circuitry. In addition these ICs have the signal processing required to perform energy measurement and rms calculations. A fixed function digital signal processor (DSP) executes this processing, with the DSP program being stored in the internal ROM memory.

Highly accurate – supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standardsCompatible with 3-phase, 3 or 4-wire (delta or wye), and other 3-phase servicesSupports current transformer and di/dt current sensorsSupplies sampled waveform data on all three phases and on neutral currentSelectable no load threshold levels for total and fundamental active and reactive powers, as well as for apparent powersBattery supply input for missing neutral operationPhase angle measurements in both current and voltage channels with a typical 0.3° errorFlexible I2C, SPI, and HSDC serial interfacesLess than 0.1% error in active and reactive energy over a dynamic range of 1000 to 1 at TA = 25°CLess than 0.2% error in active and reactive energy over a dynamic range of 3000 to 1 at TA = 25°CLess than 0.1% error in voltage and current rms over a dynamic range of 1000 to 1 at TA = 25°C

Features

Applications

• Intelligent Power Distribution Units
• Telecom Infrastructure
• Industrial Equipment
• General Purpose Energy Measurement
• Power monitoring/power budgeting
• Central office equipment
• Telecommunications and data communications equipment
• PCs/servers
• Power monitoring instruments
• Poly-phase energy meters of class 0.5S and class 1