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TE Connectivity / SMI SM923x Series Ultra-Low Gauge Pressure Sensors

TE Connectivity / SMI SM923x Series Ultra-Low Gauge Pressure Sensors offer state-of-the-art MEMS pressure transducer technology and CMOS mixed signal processing technology. SMI SM923x Sensors produce a digital, fully conditioned, multi-order pressure and temperature-compensated sensor in JEDEC standard SOIC-16 package with a dual vertical porting option. The total accuracy after board mount and system level autozero is less than 1%FS. Combining the pressure sensor with a signal-conditioning ASIC in a single package simplifies the use of advanced silicon micro-machined pressure sensors. The pressure sensor can be mounted directly on a standard printed circuit board, and a high-level, calibrated pressure signal can be acquired from the digital interface. This eliminates the need for additional circuitry, such as a compensation network or microcontroller containing a custom correction algorithm.

Features

  • 250Pa up to 600Pa gauge pressure ranges
  • <1%FS accuracy after autozero
  • 16-bit I2C digital interface
  • Pressure calibrated and temperature compensated output
  • -20°C to +85°C compensated temperature range

Applications

  • Medical
    • Sleep apnea
    • CPAP
    • Ventilators
    • Gas flow instrumentation
    • Air flow monitors
    • Life sciences
  • Industrial
    • HVAC/VAC
    • Airflow measurement
    • Pressure transmitters
    • Pneumatic gauges
    • Pressure switches
    • Safety cabinets
    • Gas flow instrumentation

Applications Circuit

Application Circuit Diagram - TE Connectivity / SMI SM923x Series Ultra-Low Gauge Pressure Sensors
View Results ( 12 ) Page
Part Number Operating Pressure Accuracy Operating Supply Voltage
SM9236-BCE-S-600-002 0 Pa to 600 Pa 1.5 % 5 V
SM9233-BCE-S-250-002 0 Pa to 250 Pa 3 % 5 V
SM9235-BCE-S-300-000 0 Pa to 300 Pa 2.5 % 3.3 V
SM9235-BCE-S-300-002 0 Pa to 300 Pa 2.5 % 5 V
SM9236-BCE-S-600-000 0 Pa to 600 Pa 1.5 % 3.3 V
SM9233-BCE-S-250-000 0 Pa to 250 Pa 3 % 3.3 V
SM9233-BCE-T-250-000 0 Pa to 250 Pa 3 % 3.3 V
SM9233-BCE-T-250-002 0 Pa to 250 Pa 3 % 5 V
SM9235-BCE-T-300-000 0 Pa to 300 Pa 2.5 % 3.3 V
SM9235-BCE-T-300-002 0 Pa to 300 Pa 2.5 % 5 V
Published: 2019-07-03 | Updated: 2023-08-16