SDP32

SDP32

Manufacturer:: SENSIRION

SENSIRION SDP32 Digital CMOSens® Differential Pressure Sensor

Specifications

Product Introduction

The SDP3x sensor family is a series of small differential pressure sensors designed for high-volume applications where size is a key requirement. It builds on the next generation CMOSens® sensor chip that is at the heart of a new differential pressure and flow sensing platform. The digital SDP3x sensor features fast measurement speed, excellent accuracy and long-term stability and has no zero-point drift. Furthermore, it is reflow solderable and provides extended functionality, such as smart averaging and multiple temperature measurement modes.

Features

  • Smallest size enables portable applications
  • Reflow solderable – Pick & Place
  • Excellent repeatability, no drift, no offset
  • Extended feature set – smart averaging
  • Calibrated and temperature compensated
  • High reliability and long-term stability
  • Best signal-to-noise ratio
  • Industry-proven technology with a track record of more than 15 years
  • Designed for mass production
  • High process capability

Applications

  • Portable devices requiring differential pressure measurement
  • High-volume applications where size is critical
  • Air flow monitoring and control systems
  • Medical devices and respiratory equipment
  • HVAC and building automation
  • Industrial process control

Specifications Table

Measurement range (SDP31) -500 to 500 Pa
Measurement range (SDP32) -125 to 125 Pa
Zero point accuracy (SDP31) 0.1 Pa
Zero point accuracy (SDP32) 0.08 Pa
Span accuracy 3% of reading
Zero point repeatability (SDP31) 0.03 Pa
Zero point repeatability (SDP32) 0.025 Pa
Span repeatability 0.5% of reading
Span shift due to temperature variation < 0.5% of reading per 10°C
Offset stability < 0.01 Pa/year
Flow step response time < 3 ms
Resolution 16 bit
Calibrated for Air, N2
Media compatibility Air, N2, O2, non-condensing
Temperature compensation range -40 °C to +85 °C
Temperature measurement range -40 °C to +85 °C
Temperature resolution 16 bit
Temperature accuracy 2 °C (-10 °C to +60 °C)
Temperature repeatability 0.1 °C
Supply voltage 2.7 to 5.5 V
Power-up/down level 2.3 to 2.7 V
Supply current (Measuring) 3.8 to 5.5 mA
Supply current (Idle state) 0.05 to 0.7 mA
Supply current (Sleep mode) 0.3 to 1 uA
IRQn driving strength 4 mA
Power-up time 25 ms
Soft reset time 20 ms
I2C SCL frequency 400 to 1000 kHz
Update rate differential pressure (Continuous mode) 1800 to 2200 Hz
Update rate temperature value (Continuous mode) 112.5 Hz
Measurement time (Triggered mode) 40 to 50 ms
Allowable overpressure 1 bar
Rated burst pressure 3 bar
Weight 0.2 g
Wetted materials Glass (silicon nitride, silicon oxide), LCP, green epoxy-based mold compound, epoxy-based resins
REACH and RoHS Compliant
Supply voltage (Absolute max) -0.3 to 5.5 V
Max voltage on pins SDA, SCL, IRQn -0.3 to VDD +0.3 V
Input current on any pin ±70 mA
Operating temperature range -40 to +85 °C
Storage temperature range -40 to +85 °C
Max humidity for long term exposure 40°C dew point
ESD HBM (human body model) 2 kV

To learn more, please download the PDF.

Datasheet: