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| 型号： | AD71056ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 16SOIC |
| 标准包装： | 48 |
| 输入阻抗： | 320 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： | 5mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 测量仪表类型： | 单相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 797 (CN2011-ZH PDF) |
AD71056
TERMINOLOGY
Measurement Error
The error associated with the energy measurement made by the
AD71056 is defined by the following formula:
ADC Offset Error
This refers to the small dc signal (offset) associated with the
analog inputs to the ADCs. However, the HPF in Channel V1
% Error =
Energy Registered by AD71056 ? True Energy
True Energy
× 100 %
eliminates the offset in the circuitry. Therefore, the power
calculation is not affected by this offset.
Frequency Output Error (CF)
Phase Error Between Channels
The high-pass filter (HPF) in the current channel (Channel V1)
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 Channel V1. The phase correction
network matches the phase to within 0.1° over a range of 45 Hz
to 65 Hz, and 0.2° over a range 40 Hz to 1 kHz (see Figure 23
and Figure 24).
Power Supply Rejection (PSR)
This quantifies the AD71056 measurement error as a
percentage of reading when the power supplies are varied.
For the ac PSR measurement, a reading at nominal supplies
(5 V) is taken. A 200 mV rms/100 Hz signal is then introduced
onto the supplies and a second reading is obtained under the
same input signal levels. Any error introduced is expressed as a
percentage of reading—see the Measurement Error definition.
For the dc PSR measurement, a reading at nominal supplies
(5 V) is taken. The supplies are 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.
The frequency output error of the AD71056 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 AD71056 transfer function. See
Figure 14 for a typical distribution of part-to-part variation of
CF frequency.
Gain Error
The gain error of the AD71056 is defined as the difference
between the measured output of the ADCs (minus the offset)
and the ideal output of the ADCs. The difference is expressed
as a percentage of the ideal output of the ADCs.
Oscillator Frequency Tolerance
The oscillator frequency tolerance of the AD71056 is defined as
the part-to-part frequency variation in terms of percentage
at room temperature (25°C). It is measured by taking the
difference between the measured oscillator frequency and the
nominal frequency as defined in the Specifications section.
Oscillator Frequency Stability
Oscillator frequency stability is defined as the frequency
variation in terms of the parts-per-million drift over the
operating temperature range. In a metering application, the
temperature range is ?40°C to +85°C. Oscillator frequency
stability is measured by taking the difference between the
measured oscillator frequency at ?40°C and +85°C and the
measured oscillator frequency at +25°C.
Rev. A | Page 6 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD71056ARZ | 制造商:Analog Devices 功能描述:IC ENERGY METERING IC 7KHZ SOIC-16 制造商:Analog Devices 功能描述:IC, ENERGY METERING IC, 7KHZ, SOIC-16 |
| AD71056ARZ-RL | 功能描述:IC ENERGY METERING 1PHASE 16SOIC 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:* |
| AD71057ARS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD71057ARSRL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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