Sensortechnics’ HCLA pressure sensors measure ultra-low gage or differential pressures from 2.5 mbar (1 inH2O) 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).