Digital pressure sensors offer ultra high total accuracy better than 0.5 per cent

Paul Boughton
Sensortechnics' new HDI series performs precision digital signal conditioning to achieve ultra high total accuracies.

An internal ASIC compensates sensor offset, temperature effects and non-linearity to allow for an excellent Total Error Band (TEB) better than ±0.5%FSS. The pressure sensors provide digital interfaces with I_C bus protocol and analogue 0.5-4.5 V output signals.

The HDI series offers absolute, differential and gage pressure measurement in various ranges from 10 mbar up to 10 bar. The sensors feature unidirectional, bidirectional or barometric calibrations and are intended to be used with air and non-corrosive gases. Optional 3 V supply voltage versions and special low power devices make the HDI series ideal for battery powered applications, eg in portable or handheld devices. Miniature SMT housings allow for space-saving PCB-mounting and maximum OEM design flexibility.

 Sensortechnics is able to provide fast and flexible modifications for all HDI pressure sensors based on custom specific requirements.

Features of the new HDI series are: Excellent Total Error Band (TEB) better than ±0.5 %FSS; I_C bus interface and analoguue output signal; pressure ranges from 10 mbar up to 10 bar; miniature SMT housings.

Typical applications of the new HDI pressure sensors include medical devices, instrumentation, environmental controls and HVAC.

Sensortechnics GmbH is based in Puchheim, Germany.