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| 型号： | ADE7759ARSRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/36页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 20SSOP |
| 标准包装： | 1,500 |
| 输入阻抗： | 390 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： | 3mA |
| 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) |
| 配用： | EVAL-ADE7759EBZ-ND - BOARD EVALUATION FOR ADE7759 |
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ADE7759
30
20
10
–89.980
–89.985
–89.990
0
–89.995
–10
–90.000
–20
–90.005
–30
–40
–50
–90.010
–90.015
–60
10 1
10 2
10 3
10 4
–90.020
40
45
50
55 60
65
70
FREQUENCY – Hz
Figure 10. Gain Response of the Digital Integrator
–88.0
–88.5
–89.0
–89.5
–90.0
–90.5
–91.0
–91.5
FREQUENCY – Hz
Figure 13. Phase Response of the Digital Integrator
(40 Hz to 70 Hz)
Note that the integrator has a –20 dB/dec attenuation and
approximately –90 ° phase shift. When combined with a di/dt
sensor, the resulting magnitude and phase response should be a
flat gain over the frequency band of interest. However, the di/dt
sensor has a 20 dB/dec gain associated with it, and generates
significant high frequency noise. A more effective antialiasing
filter is needed to avoid noise due to aliasing—see Antialias
Filter section.
When the digital integrator is switched off, the ADE7759 can be
used directly with a conventional current sensor such as current
transformer (CT) or a low resistance current shunt.
–92.0
10 1
10 2
10 3
FREQUENCY – Hz
10 4
ZERO CROSSING DETECTION
The ADE7759 has a zero crossing detection circuit on Channel 2.
This zero crossing is used to produce an external zero cross
Figure 11. Phase Response of the Digital Integrator
0
–1
signal (ZX), and it is also used in the calibration mode—see
Energy Calibration section. The zero crossing signal is also used
to initiate a temperature measurement on the ADE7759—see
Temperature Measurement section. Figure 14 shows how the
zero cross signal is generated from the output of LPF1.
–2
1,
8,
2,
16
4,
REFERENCE
–3
V2
V2P
{GAIN [7:5]}
PGA2
ADC 2
1
–63% TO +63% FS
TO
MULTIPLIER
V2N
–4
ZERO
CROSS
ZX
–5
LPF1
f –3dB = 156Hz
–6
40
45
50
55 60
FREQUENCY – Hz
65
70
1.0
0.93
21.04 @ 60Hz
ZX
Figure 12. Gain Response of the Digital Integrator
(40 Hz to 70 Hz)
V2
LPF1
Figure 14. Zero Cross Detection on Channel 2
REV. A
–13 –
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADE7759ARSZ | 功能描述:IC ENERGY METERING 1PHASE 20SSOP 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:* |
| ADE7759ARSZRL | 功能描述:IC ENERGY METERING 1PHASE 20SSOP 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:* |
| ADE7760 | 制造商:AD 制造商全称:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault Detection |
| ADE7760ARS | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP 制造商:Analog Devices 功能描述:ENERGY METER IC W/ ONCHIP FAULT & OSCIL. - Rail/Tube |
| ADE7760ARSRL | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP T/R 制造商:Analog Devices 功能描述:ENERGY METER IC W/ONCHIP FAULT & OSCIL. - Tape and Reel |
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