Automotive accelerometer for airbag, dual-axis hi-g accelerometer, AEC-Q100 qualified

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  • The AIS1120SX / AIS2120SX is a central acceleration sensor with a single or dual axis sensing element and an IC interface able to provide acceleration information to a master control unit via an SPI protocol.

    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 characteristics of the sensing element with the acceleration information to be supplied.
    The AIS1120SX / AIS2120SX has a full scale of ±120 g. The acquisition chain consists of a C/V converter, a full-differential charge amplifier, a 2nd order ΣΔ analog-to-digital converter and a digital core, which includes filtering, compensation and interpolation, control logic and SPI protocol generation.
    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 SOIC8 package and is guaranteed to operate over a temperature range extending from -40 °C to +105 °C.

    主要特性

    • AEC-Q100 qualified
    • 3.3 V single supply operation
    • 14-bit data output
    • ±120 g full scale
    • Slow and fast offset cancellation
    • Embedded self-test
    • Selectable low-pass filter
    • SPI interface
    • ECOPACK® compliant
    • Extended temperature range -40 °C to +105 °C

样片和购买

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AIS2120SXTR SO-8 Tape And Reel
Active
- EAR99 - 查看供货情况

Distributor availability ofAIS2120SXTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
MOUSER WORLDWIDE 2150 1 Order Now

代理商库存报告日期: 2019-08-07

代理商名称

DIGIKEY

库存

2500

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2150

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-08-07

立即购买

AIS2120SXTR

封装

SO-8

包装类型

Tape And Reel

Unit Price (US$)

*

Distributor availability ofAIS2120SXTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
MOUSER WORLDWIDE 2150 1 Order Now

代理商库存报告日期: 2019-08-07

代理商名称

DIGIKEY

库存

2500

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2150

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-08-07

供货状态

Active

Unit Price (US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

-

(*) 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

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支持和应用

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技术文档

    • Description 版本 文档大小 操作
      DS11250
      MEMS automotive acceleration sensor: single/dual-axis with SPI interface
      3.0
      1.61 MB
      PDF
      DS11250

      MEMS automotive acceleration sensor: single/dual-axis with SPI interface

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      DT0126
      Low-power application design with ST's MEMS accelerometers
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      DT0106
      Residual linear acceleration by gravity subtraction to enable dead-reckoning
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      6-point tumble sensor calibration

      DT0126

      Low-power application design with ST's MEMS accelerometers

      DT0106

      Residual linear acceleration by gravity subtraction to enable dead-reckoning

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出版刊物和宣传资料

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产品型号 供货状态 封装 符合RoHS级别 材料声明**
AIS2120SXTR
Active
SO-8 Ecopack2

AIS2120SXTR

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

RoHS Compliance Grade

Ecopack2

(**) 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.