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March 2011

HCLA Miniature Ultra-Low Pressure Sensors

Digital Miniature Ultra-Low Pressure Sensors Offer I²C and Analog Output at the Same Time

Sensortechnics' HCLA pressure sensors measure ultra-low gage or differential pressures from 2.5 mbar Full Scale. The sensors perform precision digital signal conditioning and achieve very high accuracies. The HCLA series provides a digital I²C bus interface plus an analog 0.5 ... 4.5 V output signal at the same time. This offers OEM customers increased design flexibility, e.g. in order to build up a redundancy functionality for safety critical applications. The sensors can directly communicate with microcontrollers without the need for additional A/D converters. Further, digital SPI bus and custom specific outputs are available on request.

HCLA pressure sensors use a special compensation technique to achieve a very high offset stability and virtually no position sensitivity. Together with an optional 3 V supply (standard 5 V) the sensors are therefore ideal for battery powered portable or handheld devices. A wide range of miniature single inline and SMT housing options allows for flexible and space-saving PCB-mounting. All HCLA pressure sensors can be modified according to customer specific requirements, e.g. with respect to pressure range, resolution and internal digital settings.

Important features of the HCLA series are:
  • Ultra-low pressure ranges from 2.5 mbar Full Scale
  • I²C bus and analog output at the same time
  • Optional 3 V power supply (standard 5 V)
  • Miniature single inline and SMT housing options

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

Further product information can be found here.

Sensortechnics Press Photo HCLA-Digital
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