参数资料
型号: AG003-01E
厂商: NVE Corp/Sensor Products
文件页数: 104/145页
文件大小: 0K
描述: ASSEMBLY CURRENT SENSOR EVAL
标准包装: 1
传感器类型: 磁性 GMR(大型磁阻传感)
接口: 模拟
嵌入式:
已供物品: 板,CD
已用 IC / 零件: AA 系列电流传感器
产品目录页面: 2839 (CN2011-ZH PDF)
相关产品: 391-1054-5-ND - SENSORS MAGNETIC FIELD LP 8-SOIC
391-1052-5-ND - SENSORS MAGNETIC FIELD 8SOIC
391-1050-5-ND - SENSORS MAGNETIC FIELD 8SOIC
391-1049-5-ND - SENSORS MAGNETIC FIELD 8MSOP
391-1048-5-ND - SENSORS MAGNETIC FIELD 8SOIC
391-1045-5-ND - SENSORS MAGNETIC FIELD 8SOIC
391-1032-5-ND - SENSORS MAGNETIC FIELD 8MSOP
391-1030-5-ND - SENSORS MAGNETIC FIELD 8MSOP
AB001-02-ND - SENSORS MAGNETIC FIELD 8SOIC
391-1020-5-ND - SENSORS MAGNETIC FIELD LP 8-SOIC
更多...
其它名称: 391-1060
Application Notes
Threshold Detection Circuit
The figure below shows the implementation of a low power threshold detection circuit that utilizes the
AAxxx-02 GMR Magnetic Field Sensor and the Burr Brown INA118 instrumentation amplifier.
Comparator hysteresis has been added around the LM311 comparator to minimize random triggering
of the circuit on potential noise sources and pickup. The gain of the instrumentation amplifier is the
same as before. The hysteresis of the comparator is approximately:
V h ≈ 2.5 ?
? Neglecting the finite output swing of the comparator.
? R 1
? R 1 + R 2 + R 3
?
R 2 ?
R 1 + R 2 ?
+5V
8 Vin+
C1 0.1uF
5 Vout+
2 IN-
3 IN+
+5V
7
C2 0.1uF
4 Vin-
1 Vout-
RG
1 RG1
8 RG2
5 REF
U2
INA118/BB
4
-5 V
6
Vref
+5V
R2
C3 0.1uF
R1
2 +
8 V+
R3
+2.5V
3 -
U3 IM311
7
1 G
Vout
4 V-
T HRESHOLD D ETECTION C IRCUIT
- 104 -
www.nve.com phone: 952-829-9217 fax: 952-829-9189
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