Miniature Amplified Pressure Sensors cm H O calibrated for Medical applications 2 Features cm H O Pressure Ranges 2 Matched pressure port volumes Temperature Compensated Calibrated Zero and Span Applications Medical Instrumentation Respiratory Breathing General Description The Miniature Amplified Output pressure sensors is based upon a proprietary technology to reduce all output offset or common mode errors. This model provides a calibrated amplified output with superior output offset characteristics. Output offset errors due to change in temperature, stability to warm-up, stability to long time period, and position sensitivity are all significantly reduced when compared to conventional compensation methods. In addition the sensor utilizes a silicon, micromachined, stress concentration enhanced structure to provide a very linear output to measured pressure. These calibrated and temperature compensated sensors give an accurate and stable output over a wide temperature range. This series is intended for use with non-corrosive, non-ionic working fluids such as air, dry gases and the like. The output of the device is ratiometric to the supply voltage and operation from any D.C. supply voltage between 4.5 and 5.5 volts. Physical Dimensions 0.30 0.50 (7.6) (12.7) B-port 0.62 (15.7) A-port Pin 1 2 3 4 0.380 0.10 0.080 O.D. Typical (2.00) (2.54) All Sensors DS-0097 Rev A a 16035 Vineyard Blvd. Morgan Hill, CA 95037 p 408 225 4314 f 408 225 2079 e www.allsensors.com all sensorsall sensorsall sensorsall sensorsall sensorsPressure Sensor Characteristics Maximum Ratings Environmental Specifications +4.5 to Supply Supply Voltage VS Temperature Ranges +75.5Vdc Common-mode pressure Compensated see specification 10 psig Lead Temperature Operating -25 to 85 C (soldering 2-4 sec.) 250C Storage -40 to 125 C Humidity Limits 0 to 95% RH (non condensing) Standard Pressure Ranges Part Number Operating Pressure Compensated Range Proof Pressure Burst Pressure 5 to 50 C 5 cmH2O-D1-4V-MINI -0.2 to 5 cmH2O 50 cmH2O 200 cmH2O 5 to 50 C 20 cmH2O-D1-4V-MINI -0.2 to 20 cmH2O 100 cmH2O 300 cmH2O 5 to 50 C 120 cmH2O-D1-4V-MINI -10 to 120 cm H2O 300 cmH2O 600 cmH2O -25 to 85 C 5 cmH2O-D1-P4V-MINI -0.2 to 5 cmH2O 50 cmH2O 200 cmH2O -25 to 85 C 20 cmH2O-D1-P4V-MINI -0.2 to 20 cmH2O 100 cmH2O 300 cmH2O -25 to 85 C 120 cmH2O-D1-P4V-MINI -10 to 120 cm H2O 300 cmH2O 600 cmH2O Specification Notes NOTE 1: ALL PARAMETERS ARE MEASURED AT 5.0 VOLT EXCITATION, FOR THE NOMINAL FULL SCALE PRESSURE AND ROOM TEMPERATURE UNLESS OTHERWISE SPECIFIED. PRESSURE MEASUREMENTS ARE WITH POSITIVE PRESSURE APPLIED TO THE FRONT PORT. NOTE 2: SHIFT IS RELATIVE TO 25C. NOTE 3: SHIFT IS WITHIN THE FIRST HOUR OF EXCITATION APPLIED TO THE DEVICE. NOTE 4: MEASURED AT ONE-HALF FULL SCALE RATED PRESSURE USING BEST STRAIGHT LINE CURVE FIT. NOTE 5: THE VOLTAGE ADDED TO THE OFFSET VOLTAGE AT FULL SCALE PRESSURE. NOMINALLY THE OUTPUT VOLTAGE RANGE IS 0.25 TO 4.25 VOLTS FOR MINUS TO PLUS FULL SCALE PRESSURE. All Sensors reserves the right to make changes to any products herein. All Sensors does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. Equivalent Circuit Miniature Amplified Medical Range Pressure Sensors