参数资料
型号: AG910-07E
厂商: NVE Corp/Sensor Products
文件页数: 120/145页
文件大小: 0K
描述: KIT EVALUATION GMR SWITCH
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: 3 个板,CD,磁体,样品,8-MSOP 插口
已用 IC / 零件: AD 系列开关
相关产品: AD004-00E-ND - SENSOR MAG SW 20G STNDRD 8-MSOP
AD122-00-ND - SENSOR MAG SW 40G CROS AX 8-MSOP
AD105-00-ND - SENSOR MAG SW 40G STANDRD 8-MSOP
391-1018-ND - SENSOR MAG SW 10G CRS AXS 8-MSOP
391-1012-ND - SENS MAG SW 28G CROS AXIS 8-MSOP
391-1010-ND - SENS MAG SW 40G CROS AXIS 8-MSOP
391-1009-ND - SENS MAG SW 20G CROS AXIS 8-MSOP
391-1008-ND - SENSOR MAG SW 28G STNDRD 8-MSOP
391-1006-ND - SENSOR MAG SW 40G STNDRD 8-MSOP
391-1005-ND - SENSOR MAG SW 20G STNDRD 8-MSOP
其它名称: 391-1061
Application Notes
The same analysis was given to a 0.060" wide trace of the same thickness. A voltage of 8.33V was
applied and the resulting graph is shown below.
AA003-02 over 0.060" wide
0.0023" thick trace
350
300
250
200
150
100
50
0
mV Out = 33.6 ± 0.8(A)
@ 8.33V
0
2
4
6
8
10
Current (A)
The current in this trace was swept from zero to nine Amps, similarly to the 90-mil analysis. The
sensor output to current correlation from this graph is 4.0 ± 0.1 mV/V/A. The differences between the
90 and 60-mil traces is due to the field distribution/density differences between the two due to the
difference in width.
Resolution
The resolution of the sensor is a function of environmental electromagnetic noise, intrinsic noise, and
hysteresis. In most applications, the environmental noise is the limiting factor in resolution. Data and
information in this section are based upon non-filtered, non-amplified, non-shielded output. In this
“raw” configuration, a resolution of better than 1 mA was found. With proper filtering, amplifying and
shielding, the noise level can be decreased and thus the usable resolution will increase.
Hysteresis and Repeatability in GMR Current Sensors
All magnetic materials have an effect called magnetic hysteresis. This hysteresis contributes greatly to
the error values given above. Hysteresis also creates a potential that the same current can produce two
different voltage outputs. The hysteresis, and thus the error, is largest when the current changes
direction. If the current changes direction, the precision of the output at low currents decreases
significantly. The specified error of 0.7% will not be obtained again until the current goes above
approximately 2A. This guideline is very rough as applications vary.
- 120 -
www.nve.com phone: 952-829-9217 fax: 952-829-9189
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