Analog Devices ADE7878AACPZ Energy Meter IC, 24 bit, 40-Pin LFCSP

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

ADE7854/7858/7868/7878 Series, Polyphase Multifunction Energy Metering IC, Analog Devices

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.

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
Supports current transformer and di/dt current sensors
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
Battery supply input for missing neutral operation
Phase angle measurements in both current and voltage channels with a typical 0.3° error
Flexible I2C, SPI, and HSDC serial interfaces
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
Less than 0.1% error in voltage and current rms over a dynamic range of 1000 to 1 at TA = 25°C

Energy/Power Measurement - Analog Devices

Specifications
Attribute Value
Resolution 24 bit
Conversion Rate 8ksps
Mounting Type Surface Mount
Package Type LFCSP
Pin Count 40
Dimensions 6.1 x 6.1 x 0.75mm
Length 6.1mm
Width 6.1mm
Height 0.75mm
Maximum Operating Supply Voltage 3.7 V
Maximum Operating Temperature +85 °C
Minimum Operating Supply Voltage 2.8 V
Minimum Operating Temperature -40 °C
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Price Each
£ 9.90
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£ 11.88
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Per unit
1 - 4
£9.90
5 - 24
£9.40
25 - 122
£8.45
123 - 244
£7.40
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