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1 Encapsulation information 2
1.1 Ultra-high precision accelerometer, packaged in a 48-pin ceramic package 2
1.2 Accelerometer axis 3
2 Reference circuit 3
2.1.1 Schematic design 3
2.1.2 Pin definition description 4
2.1.3 Pin description 5
2.2 PCB design 6
2.2.1 PCB layout and routing 6
2.2.2 PCB package 7
2.2.3 Development board 8
2.2.4 Suggestion 11 on board separation after welding 9
2.2.5 External reset pin device selection 9
3 Communication and Control 10
3.1 Hardware interface 10
3.1.1 SPI timing 10
3.1.2 SPI read-write control 11
3.2 Register description 12
3.2.1 Introduction to Register Format 12
3.2.2 Register content description 13
4 Sensor data format 14
4.1 Temperature data output 14
4.2 Acceleration data output 15
4.3 Register read CRC check 16
4.4 Data reading 17
4.5 Sensor data update 18
5 Reference suggestion 19
5.1 Welding suggestion 19
5.2 ESD protection advice 21
5.3 Installation reference
1 Introduction ( FULL TECHNICAL DATA SHEET ON REQUEST )
The AC-SMA-XXD series accelerometer is a single-axis capacitive MEMS accelerometer, consisting of a fully silicon MEMS sensing structure and a low-power signal processing ASIC composition. AC-SMA-XXD is powered by a single power supply (5V) and features low typical power consumption (11mA). Its output is either a digital signal in SPI protocol or a fully differential analog signal (common mode voltage at 2.5V), and the analog output voltage ranges from 0.5V to 4.5V. Product packaging The product is packaged in a standard LCC20 ceramic package with a total of 20 pins. The precise dimensions of the external shape are provided in the image below. The final product quality is 0.60±0.02 Gram.
Notes:
- Long-term repeatability: Accelerometers with a range of 32 ± 50g have undergone long-term repeatability testing, and test data spanning 1.5 years is available. The proportion of accelerometers with zero-bias repeatability < 0.2mg is 31%, the proportion with zero-bias repeatability < 0.5mg is 75%, the proportion with zero-bias repeatability < 1.2mg is 100%, the proportion of accelerometers with scale factor repeatability < 100ppm is 93.7%, and the proportion with scale factor repeatability < 200ppm is 100%.
- The smaller the measurement range, the higher the accuracy. For example, products with a ±2g measurement range have the best zero-bias stability indicator of 3μg, and also exhibit better long-term repeatability.
- Product characteristics ( FULL TECHNICAL DATASHEET SEND ON DEMAND )
The G800-B series angle sensor adopts MEMS technology and magnetoelectric induction technology. It uses differential array magnetic sensitive elements and non-contact measurement of the rotating shaft.
It senses the parallel magnetic field intensity of the permanent magnet installed at one end of the rotating shaft and performs linearity correction through MCU processing, temperature compensation, output signal standardized digital filtering, zero point setting, programmable intelligent control of multiple different slope settings, to achieve the absolute angular position of the output sensor within the range of 0 ~ 360°. Accuracy 0.2°, output RS232, RS485, CAN, 0-5V, 0.5-4.5V, 0-10V, 4-20mA, 0-20mA optional.
- Product characteristics ( FULL TECHNICAL DATA SHEET IN REQUEST )
The G801-B series angle sensor adopts MEMS technology and magnetoelectric induction technology.
It uses differential array magnetic sensitive elements and non-contact measurement of the rotating shaft.
It senses the parallel magnetic field intensity of the permanent magnet installed at one end of the rotating shaft and performs linearity correction through MCU processing, temperature compensation, output signal standardized digital filtering, zero point setting, programmable intelligent control of multiple different slope settings, to achieve the absolute angular position of the output sensor within the range of 0 ~ 360°.
Accuracy 0.2°, output RS232, RS485, CAN, 0-5V, 0.5-4.5V, 0-10V, 4-20mA, 0-20mA optional.
- Product characteristics (FULL TECNICAL DATA SHEET ON DEMAND )
G802 series magnetic angle sensor uses MEMS technology to integrate the nanomagnetic beam thin film material and the differential array magnetic sensitive element to non-contact sense changes in the magnetic field.
The system integrates (microcomputer) with the current transmitter and various protection circuits.
Through DSP processing, it realizes simple intelligent control of linearity correction, temperature compensation, standardization of output signals according to the range, digital filtering, zero point setting, and multi-stage different slope settings. Realize the measurement of absolute position output at user set angles within the range of 0-360 °
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Product characteristics (FULL TECHNICAL DATASHEET ON REQUEST)
G803 low-cost series magnetic angle sensor uses MEMS technology to integrate the nanomagnetic focusing film material and the differential array magnetic sensitive element to non-contact sense changes in the rotating magnetic field.
The system integrates a microprocessor (micro-computer), a current transmitter and a variety of protection circuits.
Through DSP processing, it can perform linearity correction, temperature compensation, standardization of output signals according to the range, digital filtering, zero point setting, and multi-segment different slope settings. Programmed intelligent control enables measurement of absolute position output at user-set angles within the range of 0 to 360°.
- Product characteristics (FULL TECHNICAL DATASHEET ON REQUEST)
G810 series angle sensor combines an embedded microprocessor with a CNC anc-second level calibration device, programmed calibration and conversion, 0.1° high-precision measurement, multiple outputs RS232, TTL, RS485, RS422, CAN, 0-5V, 0.5-4.5V, 0-10V, 4-20mA, 0-20mA optional.
The magnetic angle sensor uses MEMS technology to integrate the nanomagnetic focusing thin film material and the differential array magnetic sensitive element to non-contact sense changes in the rotating magnetic field.
The system integrates micro-computer, voltage and current transmitters and various protection circuits. Through DSP processing, programmable intelligent control can be achieved for linearity correction, temperature compensation, standardization of output signals based on range, digital filtering, zero point setting, and multiple different slope settings.
- Product characteristics
The G820 series high-precision angle sensor is integrated with MEMS technology, low power consumption; By using magneto electric induction technology, precision bearings, differential array magnetic sensing elements, and non-contact measurement of the shaft, the parallel magnetic field strength of a permanent magnet installed at one end of the shaft is sensed and processed by MCU to achieve programmable intelligent control of linearity correction, temperature compensation, N-order digital filtering algorithm, zero point setting, and multiple different slope settings. The absolute angular position of the output sensor is achieved within the range of 0-360 °. Accuracy of 0.05 °, output RS232, TTL, RS485, CAN, 0-5V, 0.5, 4.5V, 0-10V, 4-20mA, 0-20mA optional.
- Product characteristics
The G830 series is high precision angle sensor, with an accuracy of 0.02°, supporting setting range and adopting integrated MEMS technology, low power consumption, built-in high-precision 16 bit A/D converter, multiple outputs RS232, TTL, RS485, RS422, CAN, 0-5V, 0-10V, 4-20mA, 0-20mA and 0-24mA are optional.
By utilizing magneto electric induction technology, precision bearings, differential array magnetic sensitive components, and non-contact measurement of the shaft, the parallel magnetic field strength of a permanent magnet installed at one end of the shaft is sensed and processed by MCU. Linear correction, temperature compensation, self-developed filtering algorithm, and programmable intelligent control with multiple different slope settings are implemented to improve measurement accuracy.
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