APS00B DESCRIPTION Honeywell’s APS00B High Resolution Magnetic Angular APS00B sensor ICs use Honeywell’s Anisotropic Position Sensor IC (Integrated Circuit) is a miniature surface Magnetoresistive (AMR) technology that provides advantages mount device for angular or rotary displacement designed for over Hall-effect based magnetic sensors. They are able to magnetic saturating field sensing. resolve better than a tenth of a degree or a tenth of a millimeter, withstand large variations in magnet-to-sensor The APS00B creates an analog output voltage that varies with gaps, and exhibit insensitivity to shocks and vibrations. the direction of the magnetic flux passing over the IC surface. Honeywell’s Magnetic Sensors are among the most precision It contains dual saturated-mode Wheatstone bridges that and reliable position sensors in the industry. generate quadrature (sine and cosine) signals to provide an extended range of angular measurements up to 180°. These surface mount devices are mounted directly on the electrical traces on a PC (printed circuit) board. They are This product is a cost-effective and space-efficient solution for attached by an automatic solder reflow operation which high volume OEM designs. Potential applications include requires no hole, so it may help reduce the cost of the PC position sensing, rotary speed and angle detection, and non- board. contact precision location measurement systems. FEATURES AND BENEFITS  Tape and reel configuration allows use with automated pick-  Wide angular range allows measurements of ±90° without and-place equipment, potentially reducing assembly costs. additional components make this device suitable for a variety (178 mm [7 in]) and 330 mm [13 in] reels available) of angular sensing applications; ±180° measurement is  Typical 0 MHz to 5 MHz frequency response with 190 G possible with external components minimum magnetic field applied, makes this saturated mode  Resolution capability of less than 0.05° helps improve overall sensor IC potentially suitable for high speed applications system accuracy  Typically requires only 5 V at 4 mA to operate (20 mW),  Absolute sensing means no indexing is required and the promoting energy efficiency exact target position is known, simplifying the system design  The devices measure only field direction and are virtually  Dual 4-element Wheatstone bridges provide a passive unaffected by shock, vibration and magnetic-source gap element, low-noise design, helping improve system variations, providing a stable, reliable output performance  Dual bridges with outputs 45° out of phase make it possible  Small, SOIC-8 surface mount package saves room on the to use outputs as speed and direction signals PC board when compared to larger IC packages and  Honeywell APS00A instrumentation amplifier available for components additional signal processing  RoHS-compliant materials meet Directive 2002/95/EC . APS00B POTENTIAL APPLICATIONS Transportation: Industrial:  High accuracy angular position sensing  High accuracy angular position sensing  Rotary speed and angle detection  Rotary speed and angle detection  Non-contact precision displacement sensing  Non-contact precision displacement sensing  Speed and direction sensing  Valve position  Robotics control Medical:  High accuracy angular position sensing  Rotary speed and angle detection  Non-contact precision displacement sensing Table 1. Absolute Maximum Ratings* Parameter Min. Max. Unit Supply voltage -12 +12 V Power Dissipation – 200 mW Operating Temperature -55 [-67] 150 [302] °C [°F] Magnetic flux – no limit Gauss *Absolute maximum ratings are the extreme limits the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings. Table 2. Characteristics (At Vs = 5.0 V and Ta = 25 °C [77 °F] unless otherwise noted.) Parameter Condition Min. Typ. Max. Unit Supply voltage – – 5 12 V Operatingt Temperature – -40 [-40] – 150 [302] °C [°F] Bridge resistance bridges are connected in parallel 0.9 1.25 1.6 kOhm Supply current – 4.0 7.0 mA Sensitivity around zero crossing – 2.1 2.3 mV/° Angle range B > saturation field -90 – +90 ° Resolution – – 0.05 – ° Max. output amplitude – 47.5 57.5 67.5 mV Min. output amplitude – -47.5 -57.5 -67.5 mV Output amplitude (peak to peak) – 95 115 135 mV Offset voltage – -1 – 1 mV Amplitude change at 140°C [284°F] -34 – -43 % Amplitude change at -40°C [-40 °F] 24 – 31 % Offset shift – -2 – 2 mV Synchronism (Amp A/Amp B) * 100 97 – 103 % Synchronism shift – -1 – 1 % Saturation level 60 190 – Gauss <10 μV/Gauss amplitude change Bandwidth – 0 to 5.0 MHz 2 www.honeywell.com/sensing Figure 1. Detection of Relative Motion of a Magnet in Angular Displacement The APS0 0B sensor can used to detect the relative motion of a magnet in angu lar 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: V = Vs S sin (2 θ) and V = Vs S cos (2 θ) where: A B Vs = Supply Voltage (V) S = Material Constant = (R/R ) *(1/2) = 11.5 mV/V nominal max 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: Bridge “B” output: Vout = Vs*S*sin(2θ) + Vos Vout = Vs*S*cos(2θ) + Vos A A, B B where: where: S = 11.5 mV/V nominal S = 11.5 mV/G nominal Vos Vos A = Bridge A Offset B = Bridge B Offset (nominal = 0 V) (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 Honeywell Sensing and Control 3 APS00B Figure 5. Common Wiring Diagrams Figure 6. Typical Wiring Diagram with Honeywell APS00A Instrumentation Amplifier 4 www.honeywell.com/sensing Figure 7. Mounting Dimensions (All dimensions for reference only: mm/[in].) SOIC-8 Package Tape Standard Reel (178 mm [7 in]) Large Reel (330 mm [13 in]) APS00M Magnet 23,5 Dia. [0.93] Magnetization Direction 3,35 11,0 [0.13] [0.43] Honeywell Sensing and Control 5 Order Guide Catalog Listing Description High resolution magnetic angular position sensor IC, SOIC-8 surface-mount package, on tape and reel, APS00B 1,000 pieces on standard reel (178 mm [7 in]) High resolution magnetic angular position sensor IC, SOIC-8 surface-mount package, on tape and reel, APS00B-T13 4,000 pieces on large reel (330 mm [13 in]) Instrumentation amplifier for APS00B, SOIC-8 surface-mount package, on tape and reel, 1,000 pieces on APS00A standard reel (178 mm [7 in]) APS00M Special magnet for APS00B WARNING WARNING PERSONAL INJURY MISUSE OF DOCUMENTATION DO NOT USE these products as safety or emergency stop  The information presented in this product sheet is for devices or in any other application where failure of the reference only. DO NOT USE this document as a product could result in personal injury. product installation guide. 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