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参数资料
| 型号： | ADE7752AARZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 3PHASE 24SOIC |
| 标准包装： | 1,000 |
| 输入阻抗： | 450 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 2.4V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 6mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 测量仪表类型： | 3 相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
| 配用： | EVAL-ADE7752AEBZ-ND - BOARD EVALUATION FOR ADE7752A |
ADE7752/ADE7752A
TERMINOLOGY
Percentage Error = ?
? × 100 %
?
?
Measurement Error
The error associated with the energy measurement made by the
ADE7752 is defined by the following formula:
? Energy Registered by ADE 7752 – True Energy ?
True Energy
Error Between Channels
The high-pass filter (HPF) in the current channel has a phase
lead response. To offset this phase response and equalize the
phase response between channels, a phase correction network is
also placed in the current channel. The phase correction net-
work ensures a phase match between the current channels and
voltage channels to within ±0.1° over a range of 45 Hz to 65 Hz
and ±0.2° over a range of 40 Hz to 1 kHz. See Figure 24 and
ADC Offset Error
This refers to 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 an analog input signal offset.
However, because the HPF is always present, the offset is
removed from the current channel, and the power calculation is
not affected by this offset.
Gain Error
The gain error of the ADE7752 is defined as the difference
between the measured output frequency (minus the offset) and
the ideal output frequency. The difference is expressed as a
percentage of the ideal frequency. The ideal frequency is
obtained from the ADE7752 transfer function. See the Transfer
Function section.
Power Supply Rejection (PSR)
This quantifies the ADE7752 measurement error as a
percentage of reading when the power supplies are varied.
For the ac PSR measurement, a reading at a nominal supply
(5 V) is taken. A 200 mV rms/100 Hz signal is then introduced
onto the supply and a second reading is obtained under the
same input signal levels. Any error introduced is expressed as a
percentage of reading. See definition for Measurement Error.
For the dc PSR measurement, a reading at nominal supplies
(5 V) is taken. The supply is then varied ±5% and a second
reading is obtained with the same input signal levels. Any error
introduced is again expressed as a percentage of reading.
Rev. C | Page 11 of 24
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADE7752AR | 制造商:Rochester Electronics LLC 功能描述:THREE PHASE ACTIVE ENERGY METERING IC - Bulk 制造商:Analog Devices 功能描述:IC ENERGY METER |
| ADE7752ARRL | 制造商:Analog Devices 功能描述:Energy Measurement 24-Pin SOIC W T/R 制造商:Analog Devices 功能描述:IC ENERGY METER |
| ADE7752ARZ | 制造商:Analog Devices 功能描述:Energy Measurement 24-Pin SOIC W |
| ADE7752ARZ-RL | 制造商:Analog Devices 功能描述:Energy Measurement 24-Pin SOIC W T/R |
| ADE7752B | 制造商:AD 制造商全称:Analog Devices 功能描述:Polyphase Energy Metering IC with Pulsed Output |
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