Sensors

Low pressure sensors have a maximum load pressure of 100kPa

16th June 2015
Nat Bowers
0

Fujikura has released the digital AL4 series of gauge low pressure sensors for volume production. With a footprint of 11.36x10.32mm, the series is smaller than other low sensors. It also features an SMT pin configuration and a high total accuracy of ±1.5% FSO within a compensated temperature range from 0 to +50°C.

Now available from PEWATRON, the digital AL4 series is a two-chip system consisting of a piezo-resistive pressure sensing chip with a very high maximum load pressure of 100kPa and an ASIC signal conditioning chip. The ASIC allows digital signal conditioning and communication via the I2C protocol.

At the heart of the ASIC is a 14-bit ADC, which achieves the equivalent sensitivity of up to 0.15Pa/LSB for a 2kPa full-scale sensor. Six slave address codes can be assigned to the pressure sensor for individual communication with the MCU master. The sensors are delivered in the usual high quality Fujikura packages comprising tray, tape and reel, according to customer specification.

Standard measurement ranges are from 0 to 2 and from 0 to 10kPa. Non-standard ranges are available on request. The pressure range is configurable as positive, negative or bidirectional gauge. Supply voltage is configurable at 3.0, 3.3 or 5.0VDC.

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