am8192b RLS, am8192b Datasheet
am8192b
Related parts for am8192b
am8192b Summary of contents
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... High speed 5 V power supply SMD package LQFP44 General description The AM8192B is a compact solution for angular position sensing. The IC senses the angular position of a permanent magnet placed above or under the chip. The permanent magnet must be diametrically polarized and of cylindrical shape. ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Index Features ............................................................................................................................................................ 1 General description ........................................................................................................................................... 1 Applications....................................................................................................................................................... 1 Index ................................................................................................................................................................. 2 Pin description................................................................................................................................................... 3 Absolute maximum ratings ................................................................................................................................ 5 Operating range conditions ............................................................................................................................... 5 CW rotation and zero position of the magnet .................................................................................................... 6 Sinusoidal analogue output for monitoring ........................................................................................................ 6 Interpolator ........................................................................................................................................................ 7 Incremental output ............................................................................................................................................ 7 Binary synchronous serial output SSI ............................................................................................................... 8 Hysteresis ...
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... EEPROM interface, data line 39 EEscl EEPROM interface, clock line 40 Nerr Error output, active low 41 RiIP Input Iboh Input for amplifier bias current 43 Vss Power supply Prog OTP setup input © 2009 RLS d.o.o. Fig. 2: Pin description for AM8192B A associate company 3 ...
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... AM8192B. In operation pin 1 (Prg) must be left unconnected. Pin 2 (Error analogue output signal. It can be used for monitoring the alignment between the AM8192B and the magnet. See the “Analogue error signal (Error)” section on page 16 for detailed information. ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Absolute maximum ratings Ambient temperature °C unless otherwise noted. A Parameter Supply voltage Input pin voltage Input current (latch-up immunity) Electrostatic discharge Operating junction temperature Storage temperature range * Human Body Model Operating range conditions ...
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... The load must be connected between signal pins and Vref. The load must be the same for both channels to preserve symmetry. The AM8192B signal amplitude can vary from chip to chip within the same batch and at equal conditions with a standard deviation of 20 mV. Sinusoidal signal parameters: Parameter ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Interpolator The fast converter changes sine and cosine signals into angle position data. The resolution, hysteresis and output direction are selectable. It calculates an arctangent function from a ratio between the sine and cosine signal. The amplitude of the sine and cosine signal therefore is not important as long they are the same. ...
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... MSB Data The controller interrogates the AM8192B for its positional value by sending a pulse train to the Clock input. The Clock signal must always start from high. The first high/low transition (point 1) stores the current position data in a parallel/serial converter and the monoflop is triggered. With each transition of Clock signal (high/low or low/high) the monoflop is retriggered ...
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... Standard deviation of the hysteresis measured on 3000 samples. Noise and filtering The AM8192B uses Hall sensors for detecting the magnetic flux distribution. Noise on the Hall sensors is seen as noise on the output position. The noise can be represented as a standard deviation or peak value. The peak value is 5 times larger than the standard deviation. ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Calculating the amount of noise: The following graphs show the multiplication factors for peak noise against changing parameters. To calculate the total amount of peak noise, multiply all factors by the nominal peak noise. The peak noise at nominal conditions is 0.041° ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Signal amplitude at different frequencies and different filtering capacitors [mV]: External filtering capacitors 0 1040.0 1040 1040.0 1040 1040.0 1040 1040.0 1040 1040.0 1040 1040.0 1040 1040.0 1040.0 100 Hz 1040 ...
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... Integral nonlinearity is minimized during production to better than ±0.2°. Fig. 16 shows a typical integral nonlinearity plot of the AM8192B with 12 bit resolution, a perfectly aligned magnet filtering and default parameters. Integral nonlinearity can increase if the default parameters are changed ...
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... To select a suitable magnet it is important to know the properties of the sensors. Hall Sensors are only sensitive to the perpendicular component of the magnetic flux density (B). The AM8192B has a Hall sensor array arranged in a circle with a radius of 2.4 mm. The sensors are located on the surface of the silicon. The nominal distance between the sensors and the magnet surface is 2 ...
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... The offset represents a mean value of B 2.55 mm distance from the magnet surface and at 2.4 mm radius. Offset will cause larger than normal integral nonlinearity errors if the AM8192B placement is not in the center of the magnet rotation. Fig. 21 shows an additional integral nonlinearity error caused by misalignment of the AM8192B for ideal and recommended magnets ...
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... Magnet position The magnet can be placed below or above the device. The typical distance between the magnet and the sensors must be 2.55 mm for the recommended magnet. Fig. 22: Magnet placed above the AM8192B Parameter Distance sensors – chip surface Distance PCB plane– chip surface Distance chip surface – ...
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... January 2009 Analogue error signal (Error) The error signal output (pin magnetic error output and it can be used for alignment of the AM8192B. The chip must be perfectly perpendicular to the axis of the magnet rotation able to use the error signal for alignment. The error signal is sinusoidal in shape with one period per turn. The amplitude of the error signal is proportional to the AM8192B displacement (Fig ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Characteristics Typical behavior of the AM8192B under different parameter changes: 1300 1250 1200 1150 1100 1050 1000 950 900 850 800 4.5 4.6 4.7 4.8 4.9 5 Power supply [V] Fig. 28: Signal amplitude Vs Power supply 1400 1300 1200 1100 1000 900 800 ...
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... Issue 5, 14 January 2009 EEPROM programming For correct operation of the AM8192B it is necessary to use an external EEPROM to hold configuration data. When the device is switched on the data from the EEPROM is transferred to the AM8192B. The EEPROM must be compatible with 24C02 with a minimum memory of 128 bytes. ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 LQFP44 package dimensions Dimensions: Symbol Min. Typ. Max. A 1.6 A1 0.05 0.15 A2 1.35 1.40 1.45 b 0.30 0.37 0.45 c 0.09 0.20 D 11.80 12.00 12.20 D1 9.80 10.00 10.20 D3 8.00 E 11.80 12.00 12.20 E1 9.80 10.00 10.20 E3 8.00 e 0.80 L 0.45 0.60 0. 3.5 7 © 2009 RLS d.o.o. Unit Fig. 35: LQFP44 package dimensions mm mm deg A 19 associate company ...
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... Description Diametrically polarized magnet Dimensions: ∅ Packed in tubes Description AM8192B Angular Magnetic Encoder IC with a magnet, delivered in an antistatic box Outputs: SSI, Incremental AM8192B Angular Magnetic Encoder IC PCB with all necessary components, and a magnet, delivered in an antistatic box Outputs: SSI, Incremental ...
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... AM8192BD01_05 th Issue 5, 14 January 2009 Sample kits 1. RMK3B AM8192B Angular Magnetic Encoder PCB with all necessary components and a magnet delivered in an antistatic box. Outputs: SSI, Incremental, Unbuffered Sine/Cosine with Agnd, and output for magnet displacement Error Connections: Vss Vdd Data ...
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... Data sheet AM8192BD01_05 th Issue 5, 14 January 2009 Head office RLS merilna tehnika d.o.o. Cesta II. grupe odredov 25 SI-1261 Ljubljana - Dobrunje T +386 1 5272100 F +386 1 5272129 E mail@rls.si www.rls.si Document issues Document Date Changes issue 02 25. 05. 2007 Addition of ordering information and RMK3B Page 18: Fig. 34 updated to correct LED connection diagram 03 29 ...