ADE7878, ADE7868, ADE7858, and ADE7854 are high accuracy, 3-phase electrical energy measurement ICs with serial interfaces and three flexible pulse outputs. They incorporate six or seven second-order Σ-∆ ADCs, a digital integrator, reference circuitry, and all the signal processing required to perform total (fundamental and harmonic) active, reactive, and apparent energy measurement, fundamental only active and reactive energy measurement, and rms calculations. These metering ICs are suitable to measure active, reactive, and apparent energy in various 3-phase configurations, such as wye or delta services, with both three and four wires. They provide system calibration features for each phase: rms offset correction, phase calibration, and gain calibration. The CF1, CF2, and CF3 logic outputs provide a wide choice of power information: total/fundamental active/reactive power, total apparent power, or sum of current rms values.
The ADE7878, ADE7868, ADE7858, and ADE7854 are high accuracy, 3-phase electrical energy measurement ICs with serial interfaces and flexible pulse outputs. They incorporate six or seven second-order S-Δ ADCs, a digital integrator, reference circuitry, and all the signal processing required to perform total (fundamental and harmonic) active, reactive, and apparent energy measurement, fundamental only active and reactive energy measurement, and rms calculations.
These metering ICs are suitable to measure active, reactive, and apparent energy in various 3-phase configurations, such as wye or delta services, with both three and four wires. They provide system calibration features for each phase: rms offset correction, phase calibration, and gain calibration. The CF1, CF2, and CF3 logic outputs provide a wide choice of power information: total/fundamental active/reactive power, total apparent power, or sum of current rms values.
| Supply Voltage | Single 3.3 V |
|---|---|
| Operating Temperature | -40° to +85°C |
| Package Type | 40-lead, lead-free, lead frame chip scale package (LFCSP) |
| Active Energy Error | Less than 0.1% over dynamic range of 1000 to 1 at 25°C |
| Reactive Energy Error | Less than 0.2% over dynamic range of 3000 to 1 at 25°C |
| Interfaces | Flexible SPI, HSDC serial interfaces |
The series includes the ADE7878, ADE7868, ADE7858, and ADE7854.
The ADE7854 features active energy measurements only, while the ADE7858 adds reactive energy measurements.
The ADE7868 and ADE7878 include a seventh ADC channel for neutral current measurements.