TMR-MAC005 MULTIDIMENSION | Alldatasheet

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Technical content

Datasheet V1.0a TMR-MAC005 Microampere Current Sensor General Description TMR-MAC005 is a microampere current sensor incorporating high sensitivity tunneling magnetoresistive (TMR) sensor and Integrated coil with anti-magnetic interference design. TMR-MAC005 provides 10 mA measuring range, 150 nA and standard SOP8 package. Features and Benefits  Tunneling magnetoresistance technique  Low current measurement  150 nA high resolution  Excellent temperature stability  Wide operating voltage range  Compact size

Applications

 Weak current measurement  Bioelectric current measurement  Industrial sensor  Instrument and equipment SPECIFICATIONS Absolute Maximum Ratings Parameters Symbol Value Unit Supply voltage VCC 7 V Reverse supply voltage VRCC 7 V External magnetic field H 3000 Oe ESD performance (HBM) VESD 4000 V Ambient operating temperature TA ~40~125 ℃ Ambient storage temperature TS ~50~150 ℃

Datasheet V1.0a Electrical Parameters (at Vcc=5.0V, TA=25C, differential output) Parameters Symbol Conditions Min. Typ. Max. Unit Supply voltage VCC Operating 5 7 V Supply current ICC Output open 70(1) A TMR resistance R 70 kohm Coil resistance R_coil 85 ohm Current measuring range Range -10 10 mA Sensitivity Sen ±10 mA 2.9 mV/V/mA Electrical offset voltage Voffset -1 mV/V Resolution Res ±10 mA @ 1 Hz 150 nA Linearity error Non_line ±10 mA 0.5% FS% Temperature coefficient of sensitivity TCS within current measuring range -300 PPM/℃ Output noise Ni 1/f V noise @ 1 Hz 1.2 V/rtHz thermal V noise 70 nV/rtHz 1/f I noise @ 1 Hz 150 nA/rtHz thermal I noise 10 nA/rtHz Note 1. Icc may vary at 5V Vcc due to the resistance difference, customizable according to requirements TYPICAL BLOCK DIAGRAM Note 1.VCC could equal to VDD 2.C1=0 (short circuit) when using single power supply 3.Tuning Voffset by changing the ratio of R1/R2 4.Choose proper gain by changing Rg

Datasheet V1.0a TYPICAL TRANSFER FUNCTION TYPICAL CURRENT NOISE DENSITY SPECTRUM CONNECTION DIAGRAM

1 Coil+

2 GND

3 VCC

4 N/A

5 N/A

6 Vout1

7 Vout2

8 Coil-

Datasheet V1.0a DIMENSIONS (mm)

Datasheet V1.0a MultiDimension Technology Co., Ltd. Address:No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, China Web: www.dowaytech.com/en Email: info@dowaytech.com The information provided herein by MultiDimension Technology Co., Ltd. (hereinafter MultiDimension) is believed to be accurate and reliable. Publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. MultiDi mension reserves the right to make changes to product specifications for the purpose of improving product quality, reliability, and functionality. MultiDimension does not assume any liability arising out of the application and use of its products. MultiDimension’s customers using or selling this product for use in appliances, devices, or systems where malfunction can reasonably be expected to result in personal injury do so at their own risk and agree to fully indemnify MultiDimension for any damages resulting from such applications.