AMR4100 MULTIDIMENSION | Alldatasheet
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Technical content
High accuracy analog output dual axis position sensor AMR4100 0 90 180 270 Output voltage (mV) Magnetic field rotation angel ( ° )
Description
AMR4100 is based on the principle of anisotropic magnetoresistance (AMR), and its output voltage changes with the direction of the magnetic field (target magnetic field) received. The AMR4100 outputs two sets of analog voltage signals (sine and cosine) with a phase difference of 45° when the magnetic field direction rotates one circle. The period of these two sets of analog voltage signals is twice the rotation period of the magnetic field direction. The angular position information of the target magnetic field can be determined in real time by calculating the two sets of analog voltage signals. Through the optimized design, the temperature drift of the AMR4100 is effectively compensated, the measurement accuracy of the sensor in various application environments is improved, and the limitation for the installation distance between the measured object and the sensor is reduced. It is available in the compact DFN12L(6 mm × 2 mm × 0.75 mm) packages and easy to assemble in tight spaces. Features and benefits
- Anisotropic magnetoresistance (AMR) technology
- Wide operating voltage range (up to ±9 V)
- Sine/cosine signal output (differential analog signal)
- Excellent thermal stability
- High accuracy (absolute accuracy 0.1º)
- RoHS & REACH compliant
Applications
- Linear displacement sensing
- Length measurement
- Linear encoder
- High speed rotation encoder
- Angular displacement sensing
- Knob sensor DFN12L Version 2.0 Datasheet MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
Part Number Bridge resistance Output amplitude Output period Package Packing Form AMR4100 2.7 KΩ 13 mV/V 180° DFN12L Tape & Reel Catalogue AMR4100 MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ High accuracy analog output dual axis position sensor
outputs as shown in Figure 1. Figure 1. Block diagram as X-axis as shown in Figure 3, the red dash line. Figure 2. Sensing direction V2 signals at the corresponding time. as shown in the table of pin configuration section. Figure 3. Pin configuration (DFN12L)
1 NA -
2 V2- Sin signal negative output
3 V1- Cos signal negative output
4 GND Ground
5 V1+ Cos signal positive output
6 V2+ Sin signal positive output
7 VCC Power supply
8 NA -
9 NA -
10 NA -
11 NA -
12 NA -
MultiDimension Technology Co., Ltd.
- Absolute Maximum Ratings Parameters Symbol Min. Max. Unit Supply voltage VCC -9 9 V Operating ambient temperature TA -40 125 °C Storage ambient temperature TSTG -40 150 °C 5. Electrical Specifications VCC = 5 V, TA = 25 °C, a 0.1 μF capacitor is connected between VCC and GND Parameter Symbol Condition Min. Typ. Max. Unit Supply voltage VCC - - 5 - V Angle error Δθ - - 0.1 - ° Response time tresponse - 0.1 - 1 μS Offset VOFFSET - -2.0 - +2.0 mV/V Offset temperature coefficient Output amplitude VPEAK - 11.0 13.0 15.0 mV/V VPEAK temperature coefficient Bridge resistance RB - 2.2 2.7 3.2 kΩ Resistance temperature coefficient 6. Magnetic Specifications Parameter Symbol Condition Min. Typ. Max. Unit Applied magnetic field B - - 300 - Gs Applied magnetic field B Anti-interference enhanced - 750 - Gs Note: Response time is defined as the delay of the output signal relative to the change in the magnetic field Resistance between V1+ and V1- and/or between V2+ and V2- RB (T2) - RB (T1) VPEAK (T2) - VPEAK (T1) VOFF (T2) - VOFF (T1)TCO TCVPEAK = T2 - T1 = × 100%VPEAK (T1) × (T2 - T1) TCRB VPEAK VOFFSET = × 100% RB (T1) × (T2-T1) VMAX - VMIN VMAX + VMIN 0 90 180 270 360 V2MAX V2MIN Output voltage (mV) Magnetic field rotation angel ( ° ) Sensor input/output AMR4100 MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ High accuracy analog output dual axis position sensor
Figure 6. Package outline of DFN12L (unit: mm) MultiDimension Technology Co., Ltd.
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