SM7291 / SM7391 / SM7491
The SOIC pressure sensors in the SM7X91 series are analog/digital OEM sensors* with a new silicon sensing element and modern electronic signal conditioning unit. The integrated digital signal processor permits calibration and temperature compensation during production.
The fully calibrated SM7291/SM7391/SM7491 sensors are supplied in a standard SOIC16 package with two vertical pressure connectors for SMD assembly. Pressure-proportional information in I2C format or as an analog 0.5 – 4.5 V voltage signal acts as an output signal. SM7291/SM7391/SM7491 are autonomous sensors which do not require any additional circuitry.
These SOIC pressure sensors are suitable for reflow soldering and automatic assembly on a PCB.
The sensor is available in a relative SM7291 or differential SM7391 sensor version or as asymmetrical, bidirectional, differential pressure sensor SM7491.
Variants of SM7291/SM7391/SM7491
SM7291 relative pressure ranges: 0 – 0.07 / 0.29 psi
SM7391 differential pressure ranges:
P1: -0,29 – -0,07 psi and P2: 0,07 – 0,29 psi (the absolute values of P1 and P2 must be identical. Please see the datasheet.)
SM7491 bidirectional, asymmetrical pressure ranges:
P1: -0.29 – 0 and P2: 0 – 0.29 psi
Link to the pressure converter
AMSYS provides the SOIC sensors in the SM7X91 series as standard versions. The following specifications thereof can be customized, however.
For information on prices and delivery times or if you have any technical questions, please contact email@example.com.