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参数资料
| 型号： | ADE7761BARSZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 20SSOP |
| 标准包装： | 1,500 |
| 输入阻抗： | 790 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： | 3.65mA |
| 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： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 带卷 (TR) |
ADE7761B
Pin No.
15
16
17
18
19, 20
Mnemonic
FAULT
REVP
DGND
CF
F2, F1
Description
This logic output goes active high when a fault or missing neutral condition occurs. A fault is defined as a
condition under which the signals on V 1A and V 1B differ by more than 6.25%. A missing neutral condition is
defined when the chip is powered up with no voltage at the input. The logic output is reset to 0 when a fault or
missing neutral condition is no longer detected. See the Fault Detection section and the Missing Neutral Mode
section.
This logic output goes logic high when negative power is detected, that is, when the phase angle between the
voltage and current signals is greater than 90°. This output is not latched and is reset when positive power is once
again detected. The output goes high or low at the same time that a pulse is issued on CF.
Digital Ground. This pin provides the ground reference for the digital circuitry in the ADE7761B, that is, multiplier,
filters, and digital-to-frequency converters. This pin should be tied to the digital ground plane of the PCB. The
digital ground plane is the ground reference for all digital circuitry, such as counters (mechanical and digital),
MCUs, and indicator LEDs. For good noise suppression, the analog ground plane should be connected to the digital
ground plane only at the DGND pin.
Calibration Frequency Logic Output. The CF logic output, active high, gives instantaneous active power information.
This output is used for operational and calibration purposes. See the Digital-to-Frequency Conversion section.
Low Frequency Logic Outputs. F1 and F2 supply average active power information. The logic outputs can be
used to directly drive electromechanical counters and 2-phase stepper motors.
Rev. 0 | Page 7 of 24
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