MMR940
Outline
The MMR940 digitally outputs a micro differential pressure value which was corrected. Customers need no correction because it corrects and outputs the differences of sensors and temperature characteristics. It does not require complicated sensor drive or control circuit, and devices with high performance can be made only with this module and an external microcontroller which will be the host.
Applications
Devices using air pressure
Features
① Dual nozzle package
② A high-accuracy pressure value can be output
Operating pressure range -40~+40cmH2O
Effective resolution: 0.002cmH2ORMS
Pressure measurement error: ±0.5[%FS]
③ It corrects the differences of sensors and
temperature characteristics when shipped from
our factory
④ It digitally outputs pressure value (I2C)
⑤ Noise reduction is possible by a built-in LowPassFilter.
Main specifications
| Pressure Type | Differential Pressure |
|---|---|
| Pressure Medium | Air (no Condensation) |
| Supply Voltage Range [V] |
3.0~3.6 |
| Operating Temperature Range [deg.C] |
0~50 |
| Operating Pressure Range [kPa] |
±2 / ±4 / ±7 / ±10 |
| Current Consumption [μA] |
800 |
| Pressure accuracy [Pa] |
±20 /±40 /±70 / ±100 |
| Pressure effective resolution [PaRMS] |
1.8 / 0.9 / 0.4 / 0.2 |
| Conversion Time [ms] |
0.4 / 0.8 / 1.6 / 3.2 |
| Interface | I2C |
Package
Package Size [mm]
29.0 x 18.0 x 17.2
