参数资料
型号: AD8216WYRZ
厂商: Analog Devices Inc
文件页数: 4/16页
文件大小: 0K
描述: IC AMP 65V DIFF BIDIRECT 8SOIC
标准包装: 98
放大器类型: 差分
电路数: 1
转换速率: 15 V/µs
-3db带宽: 3MHz
电压 - 输入偏移: 500µV
电流 - 电源: 1mA
电压 - 电源,单路/双路(±): 4.5 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 管件
AD8216
Data Sheet
Rev. B | Page 12 of 16
EXTERNAL REFERENCED OUTPUT
Tying both pins together and to a reference produces an output
equal to the reference voltage when there is no differential input
(see Figure 26). The output moves down from the reference
voltage when the input is negative, relative to the IN pin, and
up when the input is positive, relative to the IN pin.
AD8216
+IN
–IN
NC
NC = NO CONNECT
GND
V+
OUT
VREF1
VREF2
2.5V VOLTAGE
REFERENCE
07
06
2-
0
31
Figure 26. External Referenced Output
SPLITTING THE SUPPLY
By tying one reference pin to V+ and the other to the ground
pin, the output is set at half of the supply when there is no
differential input (see Figure 27). The benefit is that no external
reference is required to offset the output for bidirectional current
measurement. This configuration creates a midscale offset that is
ratiometric to the supply, which means that if the supply increases
or decreases, the output remains at half the supply. For example, if
the supply is 5.0 V, the output is at half scale or 2.5 V. If the supply
increases by 10% (to 5.5 V), the output goes to 2.75 V.
AD8216
+IN
–IN
NC
NC = NO CONNECT
GND
V+
OUT
VREF1
VREF2
07
06
2-
03
2
Figure 27. Split Supply
SPLITTING AN EXTERNAL REFERENCE
In this case, an external reference is divided by 2 with an
accuracy of approximately 0.5% by connecting one VREF pin to
ground and the other VREF pin to the reference (see Figure 28).
AD8216
+IN
–IN
NC
NC = NO CONNECT
GND
V+
OUT
VREF1
VREF2
5V
VOLTAGE
REFERENCE
07
06
2-
03
3
Figure 28. Split External Reference
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