参数资料
| 型号： | AD626BNZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP DIFF LP 12MA 8DIP |
| 标准包装： | 50 |
| 放大器类型： | 差分 |
| 电路数： | 1 |
| 转换速率： | 0.22 V/µs |
| -3db带宽： | 100kHz |
| 电压 - 输入偏移： | 50µV |
| 电流 - 电源： | 1.5mA |
| 电流 - 输出 / 通道： | 12mA |
| 电压 - 电源，单路/双路(±)： | 2.4 V ~ 10 V，±1.2 V ~ 5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
AD626
–11–
CURRENT SENSOR INTERFACE
A typical current sensing application, making use of the large
common-mode range of the AD626, is shown in Figure 9. The
current being measured is sensed across resistor RS. The value of
RS should be less than 1 k and should be selected so that the
average differential voltage across this resistor is typically 100 mV.
To produce a full-scale output of +4 V, a gain of 40 is used adjust-
able by ±20% to absorb the tolerance in the sense resistor. Note
that there is sufcient headroom to allow at least a 10% overrange
(to +4.4 V).
RG
RH
CF
OPTIONAL
LOW-PASS
FILTER
OUTPUT
+VS
CURRENT IN
CURRENT OUT
0.1 F
1
2
3
4
8
7
6
5
–IN
+IN
G = 100
OUT
AD626
200k
100k
ANALOG
GND
–VS
FILTER
1/6
+VS
0.1 F
–VS
RS
CURRENT
SENSOR
G = 2
G = 30
Figure 9. Current Sensor Interface
BRIDGE APPLICATION
Figure 10 shows the AD626 in a typical bridge application. Here,
the AD626 is set to operate at a gain of 100, using dual-supply
voltages and offering the option of low-pass ltering.
CF
OPTIONAL
LOW-PASS
FILTER
OUTPUT
+5V
0.1 F
1
2
3
4
8
7
6
5
–IN
+IN
G = 100
OUT
AD626
200k
100k
ANALOG
GND
–VS
FILTER
1/6
+VS
0.1 F
–5V
+VS
G = 30
G = 2
Figure 10. A Typical Bridge Application
REV. D
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