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Atmodule AT3510-75
Two-Axis Digital-Output Angle Sensor
FEATURES * 75 degrees measurement range * 0.02 degree resolution * 0.05 degree repeatability * 120 mS conversion time * 1 mS data access time * Digital temperature compensation and calibration of null(zero) * Single supply operation 4.75 to 5.25 volts * 14-bit A/D conversion * Setup and calibration data is stored in non-volatile EEPROM memory, with hardware write protection * Electronic serial number and calibration date APPLICATIONS * OEM tilt measurement * Robotics * Strap down angle measurement
ENGINEERING
GENERAL DESCRIPTION The Atmodule AT3510-75 is a two axis precision digital-output angle sensor. The module incorporates a two-axis electrolytic tilt sensor, sensor interface electronics, and a sensor signal processor. Smart drive techniques are used to eliminate warm-up drift and long term drift which are normally seen with electrolytic sensors. Operating from a standard five-volt power supply, the module is designed for board mounting with 6pin header connection. An acrylic coating protects the electronic circuitry. The module is intended for cost sensitive OEM applications that require good null accuracy and repeatability. Atmos also offers the AT3520 and AT3530 series modules which incorporate digital calibration and compensation for null (offset) linearity and x-axis y-axis crosstalk.
Pin Configuration
Top View
4-Wire Connection
1 Vdd Vss 5V Gnd
1
3
5 1 2 3 4 5 6 VDD VSS CS DO SCLK DI 5 Volts Ground Chip Select Data Out Serial Clock Data In
Ox
AT3510
2
4
DO DI SCLK CS
Oy
6 5 3
2
4
6
Host Processor
Atmos Engineering, Inc. * 443 Dearborn Park Road * Pescadero CA, 94060 Telephone 650-879-1674 * Fax 650-879-1675 * Email: info@atmos.com * Web: www.atmos.com
AT3510 - 75
Performance Parameter Angle measurement range Resolution Repeatability Linearity 30 degrees range 75 degree range X axis to Y axis crosstalk Null accuracy Output noise pk-pk Output noise pk-pk (average angle output ) Time constant for the average Output scaling Counts/degree -16,382 16,383 -16,383 110 150 Digital output range Over range output count Under range output count Measurement time (CS high to end of conversion) AT3510 Angle Sensor Module Commands Command Measure the x and y angle and return the module status Return the x axis angle value Return the y axis angle value Return the module serial number Electrical Parameters Parameter Vdd Description Supply voltage operating Supply voltage maximum limit Supply voltage during calibration Supply current Typical at Vdd of 4.5 volts Typical at Vdd of 5.5 volts Input high voltage Input low voltage Input leakage current CS , SCLK , DI CS , SCLK , DI CS , SCLK , DI 2.0 Vss - 3 A 0.5 Volts Vdd - 0.5 Minimum 4.75 Typical 5.0 5.0 4.0 mA 3.5 4.5 9 mA Maximum 5.25 7.5 0 1 2 6 Command Option 0 0 0 0 Binary Command Word (00000000)(00000000) (00000001)(00000000) (00000010)(00000000) (00000110)(00000000) -4 -20 -10 0.1 0.05 0.02 10 100 16,382 Minimum -75 0.02 0.04 +4 +20 +10 Typical Maximu m +75 Units degree degree degree degree degree degree degree degrees degree Samples Counts Counts Counts Counts mS
Isupply
Vih Vil Iil Voh Voh
Vdd 0.2 Vdd +3 A
Output low voltage DO (Iol = 10 mA) Output high voltage DO (Ioh = -4.0 mA)
Atmos Engineering, Inc. * 443 Dearborn Park Road * Pescadero CA, 94060 Telephone 650-879-1674 * Fax 650-879-1675 * Email: info@atmos.com * Web: www.atmos.com
AT3510 - 75
Outline Drawing
Dimensions are in inches
Atmos Engineering, Inc. * 443 Dearborn Park Road * Pescadero CA, 94060 Telephone 650-879-1674 * Fax 650-879-1675 * Email: info@atmos.com * Web: www.atmos.com

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