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OMRON

Omron Product News

Omron Absolute Pressure Sensor 2SMPB-01-01

Omron Absolute Pressure Sensor 2SMPBOMRON announces the release of the new 2SMPB-01-01 Absolute Pressure Sensor. This sensor is highly accurate and can be used to detect height differences of as little as 50cm.  Based on Omron's MEMS technology, the tiny sensor module can measure altitude, SE atmospheric pressure or water depth in products such as wearable electronics, activity monitors, industrial and marine instruments and mobile phones and cameras.

The new Omron 2SMPB-01-01 absolute pressure sensor is the company's most accurate ever pressure sensor, providing readings relative to a perfect vacuum to ± 6Pa. The module is just 3.8mm x 3.8mm x 1mm maximum, small enough to integrate into portable instruments. It provides an I2C output for easy integration into digital electronics.

The sensor uses piezo resistance in a full bridge circuit to detect pressure, and is fully temperature compensated giving an absolute temperature accuracy of ± 2°C. The 2SMPB-01-01 offers the benefit of low power consumption of just 9µA typical, further simplifying its integration into portable and other battery powered electronic systems.

The 2SMPB-01-01 can operate in three different power modes: standard, high accuracy and low power mode. Product is packaged in 8 pin QFN structure with surface mounting terminals. The new absolute pressure sensor complements Omron's established range of gauge and differential pressure sensors.

The Omron 2SMPP-03 and 2SMPP-02 MEMS based gauge pressure sensors offer precise measurement between -50kPa to +50kPa and 0 to 37kPa respectively.

They are also based on a piezo-resitive principle and are ideal for medical applications such as negative pressure wound therapy as well as leak detection, movement control, level indicators, home appliances and industrial control instruments. Both devices share exceptionally compact external dimensions, of just 6.1 by 4.7 by 8.2mm.

Low Noise
Rms noise is 2Pa(Typ.). Three sigma of rms noise value is equivalent to 6Pa which corresponds to a height of approximately 50cm.

Low Power Consumption
Realized a low current consumption by automatic sleep-mode

Compact
Small Package ( 3.8 x 3.8x0.92mm)

    Part Number View Inventory
    2SMP Omron Absolute Pressure Sensor 2SMPB-01-01

Features:

  • Measures absolute pressure and temperature with high accuracy.
  • Built in low noise 24 bits ADC.
  • Digital control and output via I2C interface.
  • Automatically powers down non-working circuit to minimize current consumption.  
  • Individual calibration parameters stored in OTP (One-Time Programmable Non-Volatile Memory)
  • RoHS Compliant

Target Applications
In addition to the applications described above, and show below, the sensor can be used to detect changes in pressure caused by:

  • Opening or closing a room's door
  • Elevation change when climbing a staircase or riding an escalator.

See also:
2SMBP Datasheet (.pdf) for more product information, specifications, applications and ordering information.


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