BLC Series Low-Pressure Sensor

All Sensors Corp. has announced a brand new low-pressure sensor, the BLC Series. This new device series offers design engineers excellent performance over pressure ranges of ±1 inH2O through ±30 inH2O and 15 PSIA. The BLC Series basic low-pressure compact sensor is based on All Sensors’ CoBeam² technology.

The devices provide a high output signal at a low operating voltage, maintaining comparable output levels to traditional equivalent basic sensing elements. This lower supply voltage gives rise to improved warm-up shift while the CoBeam² technology itself reduces package stress susceptibility, resulting in improved overall long term stability.

The technology also vastly improves position sensitivity compared to conventional single-die devices, according to the company. This series is intended for use with noncorrosive, nonionic working fluids, such as air and dry gases. The compact size of this series will provide excellent opportunities for small mobile devices. The basic output is also ratiometric to the supply voltage and is operable from 0.9 to 1.8 volts DC, ideal for battery applications. Devices are available in 1, 5, 10, 20, 30 inH2O (250, 1.25k, 2.5k, 5k, 7.5k Pa) differential and 15 psi (103k Pa) absolute pressure ranges.

Package Features
• Miniature package, PC board mountable in SMT and DIP lead configurations
• Multiple port options available

Product and Electrical Features
• uPower low supply voltage (0.9V to 1.8V)
• Ratiometric basic output
• 0.1 percent linearity typical
• Improved front to back linearity
• Less position sensitivity
• Improved warm-up shift distribution
• Parylene coating available upon request
• Operating temperature range: -25° C to 85° C

Applications for this device include medical devices, medical instrumentation, environmental controls, HVAC, portable/hand held devices, all ultralow-pressure applications.