MEMS acceleration sensor: single-axis with PSI5 point-to-point interface

The AIS1200PS is a peripheral acceleration sensor with a single-axis sensing element and an IC interface able to provide acceleration information to a master control unit through a Manchester-coded protocol (125 kbps).

The sensing element, capable of detecting the acceleration, is manufactured using a dedicated process developed by ST to produce inertial sensors and actuators in silicon.

The IC interface is manufactured using a BCD process that allows a high level of integration. The device is factory trimmed to better tune the sensing element characteristics with the acceleration information to be supplied.

The AIS1200PS has a full scale of ±200 g. The acquisition chain is made up of a C/V converter, a full-differential charge amplifier, a 2nd order LPF with a cutoff frequency of 175 Hz, and a second charge amplifier to adapt the dynamic range to an SAR A/D converter.

The differential capacitance of the sensor is proportional to the proof mass displacement; thus, by sensing the differential capacitance, the position of the sensor is determined. Then, since the mass position is known and the position is related to the input acceleration, the input acceleration can be easily deduced.

The device is available in a plastic SOIC package with 150 mils reverse frame forming for EMC enhancement and is specified over a temperature range extending from -40 °C to +125 °C.

Key Features

  • 5 V to 16 V single supply operation
  • 10-bit data output
  • Embedded voltage regulator
  • Embedded self-test
  • Asynchronous 2 wire connectivity
  • PSI5-A10P v1.3 compliant
  • Error detection: single bit even parity
  • Automotive AEC-Q100 qualified
  • ECOPACK® compliant
  • Extended temperature range: -40 °C to +125 °C

设计

技术文档

产品规格
Description Version Size
DS9670 DS9670: MEMS acceleration sensor: single-axis with PSI5 point-to point interface 4.0 1 MB
应用手册
Description Version Size
AN2328 AN2328: HID device coding example 1.1 54 KB
AN4156 AN4156: Hardware abstraction layer for Android 1.0 369 KB
Technical Notes & Articles
Description Version Size
TN0018 TN0018: Surface mounting guidelines for MEMS sensors in an LGA package 5.0 218 KB
Design Notes & Tips
Description Version Size
DT0053 DT0053: 6-point tumble sensor calibration 1.0 464 KB

出版刊物和宣传资料

宣传册
Description Version Size
MEMS automotive sensors - Making our cars safer and more comfortable 1.0 773 KB
手册
Description Version Size
MEMS sensors for automotive applications - brochure 1.0 2 MB

工具和软件

软件
MEMS and Sensors Software
支持和社区



样片和购买

型号 Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
AIS1200PSTR SO16 Tape And Reel Active - - NEC EAR99 - MORE INFO
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
AIS1200PSTR ActiveSO16AutomotiveEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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