Evaluation Kits
AG003-01 Current Sensor Evaluation Kit
The NVE GMR Current Sensor Evaluation Assembly (P/N AG003-01) was created to facilitate
laboratory experimentation and development using GMR current sensors. The kit consists of (4) four
NVE current sensors (P/N AA003-02) assembled to a printed circuit board (P/N AG002-01). Please
note that the AA003-02 was selected for inclusion in this kit because it is a good medium sensitivity
current sensor. In fact, any of NVE’s AA sensor products can be used in this application for more or
less sensitivity to the magnetic field generated by the current. The PCB included in the kit has (4) four
trace geometries to simulate various PCB current ranges. The details are as follows:
Maximum Trace Input
Trace
no.
1
2
3
4
Trace Width
(inches)
0.090
0.060
0.010
7 x 0.010
1
Current (A)
± 9.0
± 6.0
± 0.25
± 0.25
Nominal Sensitivity
([mV/V] out /A in )
3.5
3.7
4.0
20.0
Notes:
1.
2.
3.
4.
5.
The maximum current is based on the rated current carrying capability of each trace geometry.
The minimum current the assembly can sense is arbitrary. The absolute value is dependent on many system design
parameters and must be determined by the user.
For functional characteristics of the AA003-02 current sensor refer to the AA Sensors section of this catalog.
Refer to NVE’s Engineering & Application Notes, Appendix APP 003, “GMR Current Sensing” for additional technical
details.
The AG003-01 assembly can be subdivided into (4) four separate sub-assemblies. All connections to each input trace and
current sensor are isolated on each sub-section.
2.00
NVE
Current Sensor Evaluation Board
1-800-GMR-7141 AG002-01
Trace 1
Trace 2
Trace 3
Trace 4
- 75 -
www.nve.com phone: 952-829-9217 fax: 952-829-9189
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