Low Current Consumption and High Sensing Precision Achieved by ASIC Optimization  

 

March 24, 2016

 

Alps  Electric  has  added  a  low  current  consumption  model  to  its  HSPPAD  Series  of  digital  pressure sensors  ideal  for  integration  into  smartphones,  tablets  and  wearable  devices.  Mass  production  of  the “HSPPAD042A” Digital Pressure Sensor began in January 2016.    

 

Smartphones, tablets and wearable electronics are more sophisticated and functional than ever before and their  range  of  uses  keeps  expanding  as  different  kinds  of  software  and  applications  emerge  to  enable features such as navigation, health management and logging of sports data.  
 

Greater diversity and sophistication of software and applications also demands higher performance from devices  incorporated  into  the  products.  At  the  same  time,  it  increases  the  power  requirement  and  so another major challenge is to reduce the current consumption of CPUs and component devices. Sensors need to be not only power-efficient but also more compact given the higher number of parts integrated.  
 

Alps  Electric  has  responded  to  these  needs,  developing  and  adding  to  an  existing  product  series  the HSPPAD042A Digital Pressure Sensor, which achieves low power consumption and high precision. After a  major  overhaul  to  optimize  the  application-specific  integrated  circuit  (ASIC),  the  HSPPAD042A achieves the industry’s lowest * 1  current consumption level (1.8µA in Low Power mode) and high sensing precision (absolute pressure accuracy: ±0.7hPa, relative pressure accuracy: ±0.05hPa).  
 

Measuring  2.0  ×  2.5  ×  0.9mm  (W×D×H),  the  HSPPAD042A  additionally  realizes  space  savings  of approximately 20% compared to the mounting area of existing Alps Electric products. This is the result of changes to the internal configuration of the sensor made using process and simulation technologies built up through development of heads for hard disk drives. The sensor even incorporates temperature compensation  circuitry  and  a  16-step  FIFO  * 2 ,  helping  to  reduce  the  design  workload  of  end-product manufacturers.  
 

*1. According to Alps Electric research as of February 2016  
*2. A function for retrieving pressure data measured by the sensor in the order it is stored on the device. FIFO is an acronym for “first in, first out.”  

 

 

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기업 HP:
http://www.alps.com/e/

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