Current Sensors
NVE offers current sensors for a range of applications, including motor control, battery management systems, and smart power.
Over-trace current sensors offer inherent isolation and overcurrent tolerance:
| Over-Trace Current Sensors | ||||||||
|
Part Number
|
Interface
|
Polarity
(omnipolar reads positive; bipolar senses polarity) |
Field
Range |
Typ. Current
|
Package
|
Breakout
Board |
Evaluation
Kit |
|
|
SM124-10E
|
I²C
|
Omnipolar
|
0–4 mT
|
0–10 A
|
2.5 x 2.5 mm
DFN6 |
AG958-07E
|
AG952-07E
|
|
|
SM125-10E
|
I²C
|
Omnipolar
|
0–4 mT
|
10 to 50 A
|
AG961-07E
|
AG962-07E
|
||
|
SM228-10E
|
I²C
|
Bipolar
|
±15 mT
|
10 to 500 A
|
AG968-07E
|
AG969-07E
|
||
|
SM324-10E
|
I²C
|
Bipolar
|
±2 mT
|
0–10 A
|
AG960-07E
|
AG951-07E
|
||
|
SM225-10E
|
SPI
|
Bipolar
|
0–15 mT
|
10 to 500 A
|
AG959-07E
|
AG953-07E
|
||
|
AAL024-10E
|
Analog Bridge
|
Omnipolar
|
0–1.5 mT
|
0–10 A
|
AG035-06
|
AG905-07E
|
||
|
ALT025-10E
|
Analog Bridge
|
Bipolar
|
±10 mT
|
10 to 500 A
|
AG035-06
|
AG905-07E
|
||
Raw bridge sensors offer low power consumption and small size. “Smart sensors” have SPI or I²C interfaces with factory calibration and temperature compensation.
Omnipolar sensors provide “full-wave rectified” outputs, while bipolar sensors also detect current polarity.
In-circuit current sensors detect low currents, making them ideal for small motor control or low-current fault detection:
|
In-Circuit Current Sensor
|
|||||||
| Part Number |
Linear
Measurement Range (mA) |
Sensitivity (mV/V/mA) |
Max. Non- Linearity |
Max. Op. Temp. (°C) |
Typical Bridge Resistance |
Package | |
|
Min.
|
Max.
|
||||||
|
-500
|
500
|
0.04
|
1%
|
125
|
15 kOhm
|
DFN6
|
|
|
-80
|
80
|
0.08
|
1%
|
85
|
7 kOhm
|
DFN6
|
|
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