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ADE7858

Analog Devices
Part Number ADE7858
Manufacturer Analog Devices
Description Polyphase Multifunction Energy Metering
Published Feb 8, 2010
Detailed Description Data Sheet Polyphase Multifunction Energy Metering IC with Harmonic and Fundamental Information ADE7854/ADE7858/ADE7868...
Datasheet PDF File ADE7858 PDF File

ADE7858
ADE7858

Overview
Data Sheet Polyphase Multifunction Energy Metering IC with Harmonic and Fundamental Information ADE7854/ADE7858/ADE7868/ADE7878 FEATURES Highly accurate; supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards Compatible with 3-phase, 3- or 4-wire (delta or wye), and other 3-phase services Supplies total (fundamental and harmonic) active, reactive (ADE7878, ADE7868, and ADE7858 only), and apparent energy, and fundamental active/reactive energy (ADE7878 only) on each phase and on the overall system Less than 0.
1% error in active and reactive energy over a dynamic range of 1000 to 1 at TA = 25°C Less than 0.
2% error in active and reactive energy over a dynamic range of 3000 to 1 at TA = 25°C Supports current transformer and di/dt current sensors Dedicated ADC channel for neutral current input (ADE7868 and ADE7878 only) Less than 0.
1% error in voltage and current rms over a dynamic range of 1000 to 1 at TA = 25°C Supplies sampled waveform data on all three phases and on neutral current Selectable no load threshold levels for total and fundamental active and reactive powers, as well as for apparent powers Low power battery mode monitors phase currents for antitampering detection (ADE7868 and ADE7878 only) Battery supply input for missing neutral operation Phase angle measurements in both current and voltage channels with a typical 0.
3° error Wide-supply voltage operation: 2.
4 V to 3.
7 V Reference: 1.
2 V (drift +5 ppm/°C typical) with external overdrive capability Single 3.
3 V supply 40-lead lead frame chip scale package (LFCSP), Pb-free Operating temperature: −40°C to +85°C Flexible I2C, SPI, and HSDC serial interfaces APPLICATIONS Energy metering systems GENERAL DESCRIPTION The ADE7854/ADE7858/ADE7868/ADE7878 are high accuracy, 3-phase electrical energy measurement ICs with serial interfaces and three flexible pulse outputs.
The ADE78xx devices incorporate second-order sigma-delta (Σ-∆) analog-to-digital converters (ADCs), a digital in...


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