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| 型号： | ADE7878ACPZ |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | Poly Phase Multifunction Energy Metering IC With Total And Fundamental Powers, No Of Pins: 40, Temperature Range: Ind |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, QCC40 |
| 封装： | 6 X 6 MM, ROHS COMPLIANT, MO-220WJJD, LFCSP-40 |
| 文件页数： | 38/96页 |
| 文件大小： | 1096K |
| 代理商： | ADE7878ACPZ |
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ADE7854/ADE7858/ADE7868/ADE7878
Rev. E | Page 43 of 96
With the specified full-scale analog input signal of 0.5 V, the
ADC produces an output code that is approximately ±5,928,256.
The equivalent rms value of a full-scale sinusoidal signal is
4,191,910 (0x3FF6A6), independent of the line frequency.
The settling time for the V rms measurement is 440 ms for both
50 Hz and 60 Hz input signals. The V rms measurement is the
time it takes for the rms register to reflect the value at the input
to the voltage channel when starting from 0.
As stated in the Current Waveform Gain Registers section, the
serial ports of the ADE78xx work on 32-, 16-, or 8-bit words.
Similar to the register presented in Figure 34, the AVRMS,
BVRMS, and CVRMS 24-bit signed registers are accessed as
32-bit registers with the eight MSBs padded with 0s.
The accuracy of the voltage rms is typically 0.1% error from the
full-scale input down to 1/1000 of the full-scale input. Additionally,
this measurement has a bandwidth of 2 kHz. It is recommended
to read the rms registers synchronous to the voltage zero crossings
to ensure stability. The IRQ1 interrupt can be used to indicate
when a zero crossing has occurred (see the
section).
0xA58AC0 =
–5,928,256
0x5A7540 =
5,928,256
0V
VOLTAGE SIGNAL
FROM HPF
LPF
x2
√
27
xVRMSOS[23:0]
xVRMS[23:0]
08
51
0-
0
41
Figure 58. Voltage RMS Signal Processing
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| ADE7878ACPZ-RL | Poly Phase Multifunction Energy Metering IC With Total And Fundamental Powers, No Of Pins: 40, Temperature Range: Ind |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADE7878ACPZ | 制造商:Analog Devices 功能描述:IC MULTIFUNCTION ENERGY METERING LFCSP40 |
| ADE7878ACPZ-RL | 功能描述:IC ENERGY METERING 3PH 40LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
| ADE7878XCPZ | 制造商:Analog Devices 功能描述:POLY PHASE MULTIFUNCTION ENERGY METERING IC WITH TOTAL - Bulk |
| ADE7880 | 制造商:Analog Devices 功能描述:BOARD EVAL ENERGY METER ADE |
| ADE7880ACPZ | 功能描述:IC ENERGY METERING 3PH 40LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
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