A4: Tailored, high-precision digital pressure sensors from Fujikura

Fujikura has released its new digital A4 series of gauge pressure sensors for high volume production. The A series is compatible in footprint and pin configuration with the highly successful F and X series, but with higher total accuracy (+/-1.5%) and a wider compensated temperature range (0-85°C).
The digital A4 series is a two-chip system consisting of a sensor chip and an ASIC signal-conditioning chip, which allows digital signal conditioning and communication via the I2C protocol. It follows the successful introduction of the analogue, high precision A2 series.
At the heart of the ASIC is a 14-bit ADC, which has the equivalent sensitivity of 7 Pa/LSB for a 100 kPa full-scale sensor under optimal conditions. Six slave address codes can be assigned to the pressure sensor for individual communication with the microcontroller master. The pressure sensors are delivered in the usual high quality Fujikura packages comprising tray, tape and reel and stick, according to customer specification.
The standard measurement ranges between 0 and 250 mbar and 0 and 10 bar; non-standard ranges are possible on request. The pressure range is configurable as positive, negative or bidirectional gauge, and the supply voltage is configurable at 3.0, 3.3 or 5.0 VDC.

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