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參數(shù)資料
| 型號(hào)： | ADE7169ACPF16-RL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver |
| 中文描述： | ANALOG CIRCUIT, QCC64 |
| 封裝： | 9 X 9MM, MO-220VMMD, LFCSP-64 |
| 文件頁(yè)數(shù)： | 19/140頁(yè) |
| 文件大?。?/td> | 1359K |
| 代理商： | ADE7169ACPF16-RL |
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Preliminary Technical Data
ADE7169F16
TERMINOLOGY
MEASUREMENT ERROR
The error associated with the energy measurement made by the ADE7169F16 is defined by the following formula:
Rev. PrD | Page 19 of 140
%
100
Re
True
×
=
Energy
Energy
True
gister
Energy
Error
Percentage
PHASE ERROR BETWEEN CHANNELS
The digital integrator and the high-pass filter (HPF) in the current channel have a non-ideal phase response. To offset this phase response
and equalize the phase response between channels, two phase-correction networks are placed in the current channel: one for the digital
integrator and the other for the HPF. The phase correction networks correct the phase response of the corresponding component and
ensure a phase match between current channel and voltage channel to within ±0.1° over a range of 45 Hz to 65 Hz with the digital
integrator off. With the digital integrator on, the phase is corrected to within ±0.4°
over a range of 45 Hz to 65 Hz.
POWER SUPPLY REJECTION
This quantifies the ADE7169F16 measurement error as a percentage of reading when the power supplies are varied. For the ac PSR
measurement, a reading at nominal supplies (3.3 V) is taken. A second reading is obtained with the same input signal levels when an ac
(100 mV rms/120 Hz) signal is introduced onto the supplies. Any error introduced by this ac signal is expressed as a percentage of
reading—see the Measurement Error definition.
For the dc PSR measurement, a reading at nominal supplies (3.3 V) is taken. A second reading is obtained with the same input signal
levels when the supplies are varied ±5%. Any error introduced is again expressed as a percentage of the reading.
ADC OFFSET ERROR
The dc offset associated with the analog inputs to the ADCs. It means that with the analog inputs connected to AGND, the ADCs still see
a dc analog input signal. The magnitude of the offset depends on the gain and input range selection—see the Typical Performance
Characteristics section. However, when HPF1 is switched on, the offset is removed from the current channel and the power calculation is
not affected by this offset. The offsets can be removed by performing an offset calibration—see the Analog Inputs section.
GAIN ERROR
The difference between the measured ADC output code (minus the offset) and the ideal output code—see the Current Channel ADC and
Voltage Channel ADC sections. It is measured for each of the input ranges on the current channel (0.5 V, 0.25 V, and 0.125 V). The
difference is expressed as a percentage of the ideal code.
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| ADE7169ACPZF16 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver |
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| ADE7169ASTF16 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver |
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