SDP816-500PA

Datasheet SDP8xx-Analog Differential Pressure Sensor with Analog Output  Configurable analog output  Calibrated and temperature compensated  Excellent repeatability, no drift Product Summary The SDP800 sensor family is Sensirion’s series of differential pressure sensors designed for high-volume applications. The sensors measure the pressure of air and non-aggressive gases with superb accuracy and no offset drift. The sensors cover a pressure range of up to ±500 Pa (±2 inch H2O / ±5 mbar) and deliver outstanding accuracy, also at the lower end of the measuring range. The SDP800 features an analog ratiometric voltage output, which is configurable to linear or square root by a separate pin. The outstanding performance of these sensors is based on Sensirion’s patented CMOSens® sensor technology, which combines the sensor element, signal processing, digital calibration and analog output on a small CMOS chip. The differential pressure is measured by a thermal sensor element using flow-through technology. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications. Benefits of Sensirion’s CMOSens® Technology      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 Content 1. Sensor Performance .............................................................. 2 2. Specifications ......................................................................... 3 3. Pin Assignment ...................................................................... 4 4. Package Outline..................................................................... 5 5. Soldering................................................................................ 6 6. Shipping Package .................................................................. 7 7. Ordering Information .............................................................. 7 Revision History.............................................................................. 7 Important Notices ........................................................................... 8 Headquarters and Subsidiaries ...................................................... 8 www.sensirion.com Version 1 – March 2018 1/8 1. Sensor Performance 1.1 Differential Pressure Specification1 Parameter Measurement range 2 Zero point accuracy 3,4,5 Span accuracy 3,4,5 Zero point repeatability 4,5 Span repeatability 4,5 Span shift due to temperature variation Offset stability Temperature and pressure compensation Response time (τ63) Internal digital resolution Calibrated for Media compatibility Calibrated temperature range Configuration Linear SDP806/SDP816-500Pa – 50 to 500 Pa Square Root – 500 to 500 Pa (-0.2 to 2 inH2O) SDP806/SDP816-125Pa - 12.5 to 125 Pa (-0.05 to 0.5 inH2O) - 125 to 125 Pa (-2 to 2 inH2O) (-0.5 to 0.5 inH2O) 0.1 Pa 5 3% of reading 5 0.05 Pa 5 0.5% of reading 5 0.08 Pa 5 3% of reading 5 0.04 Pa 5 0.5% of reading 5 < 0.5% of reading per 10°C < 0.5% of reading per 10°C < 0.05 Pa/year < 0.05 Pa/year Mass flow compensated differential pressure6 < 5 ms 16 bit Air, N2 Air, N2, O2, non-condensing -20 °C to +85 °C Unless otherwise noted, all sensor specifications are valid at 25°C with VDD = 3.3 V and absolute pressure = 966 mbar. For other pressure ranges contact Sensirion 3 Includes repeatability 4 Total accuracy/repeatability is a sum of zero-point and span accuracy/repeatability. 5 Output voltage integral non linearity and output voltage noise are not included. Note that the effect of output voltage integral non linearity and output voltage noise on accuracy is highly dependent on the output configuration (linear or square root). 6 For more information about temperature and pressure compensation consult the selection guide in the differential pressure download center on our website. 1 2 www.sensirion.com Version 1 – March 2018 2/8 2. Specifications 2.1 Electrical Specifications Parameter Symbol Supply Supply Voltage VDD Power-up/down level VPOR Supply current IDD Ratiometric analog voltage output Output range Resistive load to GND Resistive load to VDD Capacitive load Cload Output voltage Integral Non Linearity (INL) Output voltage noise (RMS) 2.2 Power-up time 10% 10 1 1000 Max. Units 2.5 3.8 5.5 2.7 5.5 V V mA 90% 100 VDD kOhm kOhm nF 5 mV 100 0.5 Symbol Condition Min. Typ. tPU Symbol Pmax Pburst W Condition Min. Typ. Max. Units 25 ms Max. 1 Units bar bar g 5 6 Comments Time to first reliable measurement Comments REACH and RoHS compliant Absolute Maximum Ratings Parameter Supply Voltage VDD Max Voltage on pins (Inputs) Input current on any pin Operating temperature range 2 Storage temperature range Max. humidity for long term exposure ESD HBM (human body model) 2 mV PBT (polybutylene terephthalate), glass (silicon nitride, silicon oxide), silicon, gold, FR4, silicone as static sealing, epoxy, copper alloy, lead-free solder REACH, RoHS 1 Comments Materials Parameter Wetted materials 2.5 2.7 2.3 Typ. Mechanical Specifications Parameter Allowable overpressure Rated burst pressure Weight 2.4 Min. Timing Specifications Parameter 2.3 Condition Rating -0.3 to 5.5 -0.3 to VDD+0.3 ±70 -40 to +85 -40 to +85 40°C dew point 2 Units V V mA °C °C kV For a resistive load to GND less than 100kOhm a 1nF capacitor to GND on the AOUT is recommended For Air and N2. Long term exposure to (high concentrations of) O2 at high temperatures can reduce the product lifetime www.sensirion.com Version 1 – March 2018 3/8 3. Pin Assignment The pin assignments of the SDP8xx-Analog can be found in Table 1. Pin no. Name Description 1 OCS Output curve selection input 2 VDD VDD Supply 3 GND Connect to ground 4 AOut Ratiometric analog voltage output AOUT GND VDD OCS Table 1: SDP8xx-Analog pin assignment (bottom view) 3.1 OCS: Output Curve Selection Input Config. Polarity Description Conversion to physical values AOut[V], VDD[V], Differential Pressure (DP) [Pa] Analog output is configured as a linear output. The sensor is not fully bidirectional in this configuration: -10% full500Pa scale to 100% full scale. Linear 𝐷𝑃 = 750 ∙ 𝐴𝑂𝑢𝑡 − 150 𝑉𝐷𝐷 Low (GND) 125Pa 𝐷𝑃 = 190 ∙ 𝐴𝑂𝑢𝑡 − 38 𝑉𝐷𝐷 Analog output is a fully bi-directional output with square root conversion. The 2 benefits are that the bidirectional output 𝐴𝑂𝑢𝑡 𝐴𝑂𝑢𝑡 has a more stable zero point and higher 500Pa 𝐷𝑃 = 𝑠𝑖𝑔𝑛 ( 𝑉𝐷𝐷 − 0.5) ∙ (𝑉𝐷𝐷 ∙ 0.4 − 1.25) ∙ 525 sensitivity at lower pressures Square High Root (VDD) 2 𝐴𝑂𝑢𝑡 𝐴𝑂𝑢𝑡 − 0.5) ∙ ( − 1.25) ∙ 133 𝑉𝐷𝐷 𝑉𝐷𝐷 ∙ 0.4 125Pa 𝐷𝑃 = 𝑠𝑖𝑔𝑛 ( 3.2 AOut Pin The AOut pin gives out an analog ratiometric voltage, representing the measured differential pressure value. Please note the resistive and capacitive loads as mentioned in section 2.1. Formulas for converting AOut [V] to differential pressure [Pa] can be found in section 3.1. www.sensirion.com Version 1 – March 2018 4/8 4. Package Outline 4.1 Dimensions SDP80x – Manifold Connection Figure 1: SDP80x. All dimensions in mm. 4.2 Dimensions SDP81x – Tube Connection Figure 2: SDP81x. All dimensions in mm. www.sensirion.com Version 1 – March 2018 5/8 4.3 Footprint A B OCS VDD GND AOUT Figure 3: Footprint for PCB mounting (top view = sensor side). All dimensions in mm. A: Overall sensor dimensions B: Holes for additional mounting screws (optional) In case the sensor is not mounted on a PCB and is connected with a cable the SDP800 series cap is recommended. 5. Soldering Standard wave soldering systems may be used for soldering SDP800 series sensors. Reflow soldering is not feasible and may damage the sensor. The sensor ports must be protected from solder splash and flux during soldering. Figure 4 shows an appropriate temperature profile with maximum temperature values. Entrance to solder Wave Exit from solder Wave (Time in wave < 2 s) Flux zone Preheat zone Solder Wave Peak Temp. Max. 260°C 250°C 200°C 150°C Approx. PCB bottomside temp. Max 145°C 100°C 50°C PCB top-side temperature 0°C Start Approx. 1 min Figure 4: Suitable wave soldering profile. The characteristics of wave soldering machines vary, so any soldering setup must be tested before production use. www.sensirion.com Version 1 – March 2018 6/8 6. Shipping Package SDP8xx are shipped in trays of 80pcs. The tray dimension is 355mm x 255mm x 21.5mm. By piling them up, the height per tray can be considered as 19mm. 7. Ordering Information Use the part names and item numbers shown in the following table when ordering SDP8xx differential pressure sensor. For the latest product information and local distributors, visit www.sensirion.com. Description / Output Differential Pressure Temperature Compensation Product number SDP806-500Pa Manifold mount, 500Pa, Analog Mass Flow 1-101504-01 SDP816-500Pa Tube connection, 500Pa, Analog Mass Flow 1-101595-01 SDP806-125Pa Manifold mount, 125Pa, Analog Mass Flow 1-101598-01 SDP816-125Pa Tube connection, 125Pa, Analog Mass Flow 1-101596-01 Part name Revision History Date Author Version Changes 21.03.2018 ANB www.sensirion.com V1 Released Version 1 – March 2018 7/8 Important Notices  Warning, personal injury Do not use this product as safety or emergency stop devices or in any other application where failure of the product could result in personal injury (including death). Do not use this product for applications other than its intended and authorized use. Before installing, handling, using or servicing this product, please consult the datasheet and application notes. Failure to comply with these instructions could result in death or serious injury. If the Buyer shall purchase or use SENSIRION products for any unintended or unauthorized application, Buyer shall defend, indemnify and hold harmless SENSIRION and its officers, employees, subsidiaries, affiliates and distributors against all claims, costs, damages and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if SENSIRION shall be allegedly negligent with respect to the design or the manufacture of the product. ESD Precautions The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESD-induced damage and/or degradation, take customary and statutory ESD precautions when handling this product. See application note “Handling Instructions” for more information. Warranty SENSIRION warrants solely to the original purchaser of this product for a period of 12 months (one year) from the date of delivery that this product shall be of the quality, material and workmanship defined in SENSIRION’s published specifications of the product. Within such period, if proven to be defective, SENSIRION shall repair and/or replace this product, in SENSIRION’s discretion, free of charge to the Buyer, provided that:  notice in writing describing the defects shall be given to SENSIRION within fourteen (14) days after their appearance;   such defects shall be found, to SENSIRION’s reasonable satisfaction, to have arisen from SENSIRION’s faulty design, material, or workmanship; the defective product shall be returned to SENSIRION’s factory at the Buyer’s expense; and the warranty period for any repaired or replaced product shall be limited to the unexpired portion of the original period. This warranty does not apply to any equipment which has not been installed and used within the specifications recommended by SENSIRION for the intended and proper use of the equipment. EXCEPT FOR THE WARRANTIES EXPRESSLY SET FORTH HEREIN, SENSIRION MAKES NO WARRANTIES, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT. ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY EXCLUDED AND DECLINED. SENSIRION is only liable for defects of this product arising under the conditions of operation provided for in the datasheet and proper use of the goods. SENSIRION explicitly disclaims all warranties, express or implied, for any period during which the goods are operated or stored not in accordance with the technical specifications. SENSIRION does not assume any liability arising out of any application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. All operating parameters, including without limitation recommended parameters, must be validated for each customer’s applications by customer’s technical experts. Recommended parameters can and do vary in different applications. SENSIRION reserves the right, without further notice, (i) to change the product specifications and/or the information in this document and (ii) to improve reliability, functions and design of this product. Copyright © 2016-2018, SENSIRION. CMOSens® is a trademark of Sensirion All rights reserved Headquarters and Subsidiaries Sensirion AG Laubisruetistr. 50 CH-8712 Staefa ZH Switzerland Sensirion Inc., USA phone: +1 312 690 5858 info-us@sensirion.com www.sensirion.com Sensirion Korea Co. Ltd. phone: +82 31 337 7700~3 info-kr@sensirion.com www.sensirion.co.kr phone: +41 44 306 40 00 fax: +41 44 306 40 30 info@sensirion.com www.sensirion.com Sensirion Japan Co. Ltd. phone: +81 3 3444 4940 info-jp@sensirion.com www.sensirion.co.jp Sensirion China Co. Ltd. phone: +86 755 8252 1501 info-cn@sensirion.com www.sensirion.com.cn Sensirion Taiwan Co. Ltd phone: +886 3 5506701 info@sensirion.com www.sensirion.com To find your local representative, please visit www.sensirion.com/distributors www.sensirion.com Version 1 – March 2018 8/8