- 您现在的位置：买卖IC网 > Datasheet目录307 > AD71056ARZ-RL (Analog Devices Inc)IC ENERGY METERING 1PHASE 16SOIC Datasheet资料下载
参数资料
| 型号： | AD71056ARZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 16SOIC |
| 标准包装： | 2,500 |
| 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： | 带卷 (TR) |
AD71056
APPLICATIONS
ANALOG INPUTS
Channel V1 (Current Channel)
The voltage output from the current sensor is connected to the
AD71056 at Channel V1. Channel V1 is a fully differential
voltage input. V1P is the positive input with respect to V1N.
The maximum peak differential signal on Channel V1 should
be less than ±30 mV (21 mV rms for a pure sinusoidal signal)
for specified operation.
V1
+30mV
V1P
Channel V2 is usually driven from a common-mode voltage,
that is, the differential voltage signal on the input is referenced
to a common mode (usually AGND). The analog inputs of the
AD71056 can be driven with common-mode voltages of up
to 25 mV with respect to AGND. However, best results are
achieved using a common mode equal to AGND.
Typical Connection Diagrams
Figure 19 shows a typical connection diagram for Channel V1.
A shunt is the current sensor selected for this example because
of its low cost compared to other current sensors, such as the
current transformer (CT). This IC is ideal for low current meters.
V CM
DIFFERENTIAL INPUT
±30mV MAX PEAK
V1
V1N
SHUNT
R F
±30mV
C F
V1P
V1N
COMMON MODE
±6.25mV MAX
V CM
R F
C F
–30mV
AGND
AGND
PHASE
NEUTRAL
Figure 17. Maximum Signal Levels, Channel V1
Figure 17 illustrates the maximum signal levels on V1P and
V1N. The maximum differential voltage is ±30 mV. The
differential voltage signal on the inputs must be referenced to a
common mode, such as AGND. The maximum common-mode
signal is ±6.25 mV, as shown in Figure 17.
Figure 19. Typical Connection for Channel V1
Figure 20 shows a typical connection for Channel V2. Typically,
the AD71056 is biased around the phase wire and a resistor
divider is used to provide a voltage signal that is proportional to
the line voltage. Adjusting the ratio of R A , R B , and R F is also a
convenient way of carrying out a gain calibration on a meter.
Channel V2 (Voltage Channel)
R A 1
R B
V2P
The output of the line voltage sensor is connected to the
AD71056 at Channel V2. Channel V2 is a fully differential
voltage input with a maximum peak differential signal of ±165 mV.
R F
C F
±165mV V2N
R F
C F
Figure 18 illustrates the maximum signal levels that can be
connected to the AD71056 Channel V2.
NEUTRAL PHASE
1 R
+165mV
V2
V2P
A
>> R B + R F .
Figure 20. Typical Connections for Channel V2
V CM
DIFFERENTIAL INPUT
±165mV MAX PEAK
COMMON MODE
±25mV MAX
V2
V CM
V2N
–165mV
AGND
Figure 18. Maximum Signal Levels, Channel V2
Rev. A | Page 12 of 20
相关PDF资料 |
PDF描述 |
|---|---|
| AD8240YRMZ | IC LED DRIVER PWM CONTROL 8-MSOP |
| ADD5203ACPZ-RL | IC LED DRVR WHITE BCKLGT 28LFCSP |
| ADD5205ACPZ-RL | IC LED DVR WHITE BCKLGT 12LFCSP |
| ADE5566ASTZF62-RL | IC ENERGY METERING 1PHASE 64LQFP |
| ADE7156ASTZF16 | IC ENERGY METER 64-LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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: |
| AD71057ARSZ | 制造商:Analog Devices 功能描述: |
| AD71057ARSZ-RL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD71058YSTZ | 制造商:Analog Devices 功能描述: |
发布紧急采购，3分钟左右您将得到回复。