APS00B DESCRIPTION Honeywells APS00B High Resolution Magnetic Angular APS00B sensor ICs use Honeywells 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. Honeywells 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 140C 284F -34 -43 % Amplitude change at -40C -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 V/Gauss amplitude change Bandwidth 0 to 5.0 MHz 2 www.honeywell.com/sensing