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APS00B Datasheet(PDF) 3 Page - Honeywell Accelerometers |
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APS00B Datasheet(HTML) 3 Page - Honeywell Accelerometers |
3 / 6 page Honeywell Sensing and Control 3 Figure 1. Detection of Relative Motion of a Magnet in Angular Displacement The APS00B sensor can used to detect the relative motion of a magnet in angular displacement. Given a typical supply voltage of 5 V, each bridge will provide about 115 mV of swing (±57.5 mV) on top of 2.5 V bias voltage. With +5 V applied to it, the bridge performs a rail splitter function to create two near +2.5 V sources driven apart by V as created by the magnetic field and the offset error voltage. The bridge differential output voltages ( V) for the APS00B are: VA = Vs S sin (2 θ) and VB = Vs S cos (2 θ) where: Vs = Supply Voltage (V) S = Material Constant = ( R/Rmax) *(1/2) = 11.5 mV/V nominal θ = Reference to Magnetic Field Angle (°) Please refer to Application Sheet “How to Apply Honeywell APS00B Angular Position Sensors ICs ” for additional details. Figure 2. Electrical Diagram Figure 3. Pinout and Sensing Element Location The APS00B has two sensor bridges optimized for rotary sensing applications. Thus the die is centered in all three dimensions within the SOIC-8 package. The figure below indicates the pin identification and the sensing element location. Bridge “A” output: VoutA = Vs*S*sin(2θ) + VosA, where: S = 11.5 mV/V nominal VosA = Bridge A Offset (nominal = 0 V) Bridge “B” output: VoutB = Vs*S*cos(2θ) + VosB where: S = 11.5 mV/G nominal VosB = Bridge B Offset (nominal = 0 V) Bridge A is centroidally co-located with Bridge B, and Bridge A elements are rotated by 45° relative to Bridge B elements as shown. Figure 4. Typical Bridge Outputs vs Rotation Angle |
Similar Part No. - APS00B |
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Similar Description - APS00B |
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