Product Summary
The SDP6x6 sensor is a special version in Sensirion’s SDP600 series of digital differential pressure sensors designed for high-volume applications. Just like all other
SDP600 series sensors, the SDP6x6 measures the pressure of air and non-aggressive gases with superb accuracy and no offset drift. Additionally the SDP6x6
switches off power consuming functions in the sensor after a measurement and so saves more than 99.9% power during idle mode.
The SDP6x6 operates from a 3V supply voltage and features a digital 2-wire interface, which makes it easy to connect directly to a microprocessor. The signal is
internally linearized and temperature compensated. The outstanding performance of these sensors is based on Sensirion’s patented CMOSens® sensor technology,
which combines the sensor element, signal processing and digital calibration on a tiny microchip. The differential pressure is measured by a thermal sensor element using
flow-through technology. Compared with membranebased sensors, the SDP6x6 features an extended dynamic range, better long-term stability, and improved
repeatability, especially near zero.
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.

Power Saving Mode
The SDP6x6 automatically switches off the heater, ADC and other chip functions after a measurement in order to save power. During the power saving mode only the I2C
interface will remain active and will trigger the rest of the sensor on the next measurement command.
The SDP6x6 is intended for applications where differential pressure measurements are only required once in a while and low latency is not required.

Sensor chip
The SDP6x6 features the fourth-generation silicon sensor chip. In addition to a thermal mass flow sensor element, the chip contains an amplifier, A/D converter, EEPROM
memory, digital signal processing circuitry and interface.
The highly sensitive sensor chip requires only a minuscule amount of gas flow through the sensor.



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