SDP6x6 (SDP606/616) Differential Pressure Sensor with Power Saving Mode Automatic power saving mode when idle Accuracy better than 0.2% FS near zero 2 Digital output (I C) Excellent repeatability, even below 10 Pa Calibrated and temperature compensated Excellent long-term stability Product Summary The SDP6x6 sensor is a special version in Sensirions The outstanding performance of these sensors is based SDP600 series of digital differential pressure sensors on Sensirions patented CMOSens sensor technology, designed for high-volume applications. Just like all other which combines the sensor element, signal processing SDP600 series sensors, the SDP6x6 measures the and digital calibration on a tiny microchip. The differential pressure of air and non-aggressive gases with superb pressure is measured by a thermal sensor element using accuracy and no offset drift. Additionally the SDP6x6 flow-through technology. Compared with membrane- switches off power consuming functions in the sensor after based sensors, the SDP6x6 features an extended a measurement and so saves more than 99.9% power dynamic range, better long-term stability, and improved during idle mode. repeatability, especially near zero. The SDP6x6 operates from a 3V supply voltage and The well-proven CMOS technology is perfectly suited for features a digital 2-wire interface, which makes it easy to high-quality mass production and is the ideal choice for connect directly to a microprocessor. The signal is demanding and cost-sensitive OEM applications. internally linearized and temperature compensated. Power Saving Mode Sensor chip The SDP6x6 automatically switches off the heater, ADC The SDP6x6 features the fourth-generation silicon sensor and other chip functions after a measurement in order to chip. In addition to a thermal mass flow sensor element, save power. During the power saving mode only the I2C the chip contains an amplifier, A/D converter, EEPROM interface will remain active and will trigger the rest of the memory, digital signal processing circuitry and interface. sensor on the next measurement command. The highly sensitive sensor chip requires only a minuscule The SDP6x6 is intended for applications where differential amount of gas flow through the sensor. pressure measurements are only required once in a while and low latency is not required. Applications OEM options A variety of custom options can be implemented for high- Medical volume OEM applications. Ask us for more information. HVAC Process automation www.sensirion.com Version 1.1 May 2016 1/10 1. Sensor Performance 1 1.1 Physical specifications SDP606 Parameter SDP616 Short Description Differential Pressure Sensor with Power Saving Mode 500 Pa Calibrated range to + 500 Pa ( 2.0 in. H O) 2 Temperature-compensation yes Resolution 16bit 2,3 Zero point accuracy 0.2 Pa 2,3 Span accuracy 3% of reading 2,3 Zero point repeatability 0.1 Pa 2,3 Span repeatability 0.5% of reading Offset shift due to temperature None variation (less than resolution) Span shift due to temperature < 0.5% of reading per 10C variation Offset stability < 0.1 Pa/year Response time 90 ms typical > 900 ms Time between measurements (shorter measurement intervals will affect accuracy of measurement results) 1 All sensor specifications are valid at 25C with Vdd = 3 V and absolute pressure = 966 mbar and at most one measurement per second. 2 Includes repeatability and hysteresis. 3 Total accuracy/repeatability is a sum of zero-point and span accuracy/repeatability. www.sensirion.com Version 1.1 May 2016 2/10