Datasheet

ManualsBrandsSENSIRION ManualsSensorsPressure sensor dev kit

www.sensirion.com Version 1.7 – September 2012 1/10

SDP600 Series (SDP6xx/5xx)

Low-cost Digital Differential Pressure Sensor

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Accuracy better than 0.2% FS near zero

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Digital output (I

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Excellent repeatability, even below 10 Pa

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Calibrated and temperature compensated

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Excellent long-term stability

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Flow measurement in bypass configuration

Product Summary

The SDP600 sensor family is Sensirion’s series of digital

differential pressure sensors designed for high-volume

applications. They 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 H

O / ±5 mbar) and deliver outstanding accuracy

even at the bottom end of the measuring range.

The SDP600 series operates from a 3.3 Vdc 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 membrane-

based sensors, the SDP600 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.

Applications

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Medical

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HVAC

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Automotive

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Process automation

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Burner control

New versions

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Low pressure versions SDP600/610-125Pa and

SDP600/610-25Pa are suited to measure very low and

ultra low differential pressure.

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Low power versions (SDP606/SDP616) are developed

especially for low power battery operation.

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Special calibration to measure a massflow in bypass

configuration (SDP601/SDP611).

OEM options

A variety of custom options can be implemented for high-

volume OEM applications. Ask us for more information.

Connection diagram

SDP600

Series

(slave)

µC

(master)

SDA

SCL

VDD 3.3V

GND

Vdd

SDP600 series with bidirectional digital communication

C bus)

Sensor chip

The SDP600 series features a fourth-generation silicon

sensor chip called SF04. 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 chip requires

only a minuscule amount of gas flow through the sensor.

Summary of content (10 pages)

PAGE 1
SDP600 Series (SDP6xx/5xx) Low-cost Digital Differential Pressure Sensor Accuracy better than 0.2% FS near zero Digital output (I2C) Excellent repeatability, even below 10 Pa Calibrated and temperature compensated Excellent long-term stability Flow measurement in bypass configuration Product Summary The SDP600 sensor family is Sensirion’s series of digital differential pressure sensors designed for high-volume applications.
PAGE 2
1. Sensor Performance 1.1 Physical specifications1 Parameter SDP500 SDP510 SDP600-500Pa SDP610-500Pa SDP600-125Pa SDP610-125Pa SDP600-25Pa SDP610-25Pa SDP601 SDP611 SDP606 SDP616 Short Description Low cost Standard Low DP Lowest DP “Mass Flow” Low Power2 Calibrated range3 0 Pa to +500 Pa – 500 Pa to + 500 Pa – 125 Pa to + 125 Pa – 25 Pa to + 25 Pa (0 to 2.0 in. H2O) (± 2.0 in. H2O) (± 0.5 in. H2O) (± 0.1 in. H2O) – 500 to + 500 Pa – 125Pa to + 125 Pa – 25 Pa to + 25 Pa (± 2.0 in.
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1.2 Ambient conditions Parameter Calibrated for8 Media compatibility Calibrated temperature range8,9 Operating temperature Storage temperature8 Position sensitivity 1.3 SDP5xx / SDP6xx Series Air, N2 Air, N2, O2 -20 °C to +80 °C -20 °C to +80 °C -40 °C to +80 °C Less than repeatability error REACH, RoHS, WEEE 2.
PAGE 4
3. Interface Specifications The serial interface of the SDP600 series is optimized in terms of sensor readout and power consumption. It is compatible with I2C interfaces. For detailed specifications of the I2C protocol, see The I2C Bus Specification, Version 2.1, January 2000 (source: NXP). 3.1 Transmission STOP Condition (P): The STOP condition is a unique situation on the bus created by the master, indicating to the slaves the end of a transmission sequence (the bus is considered free after a STOP).
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3.4 Data transfer format Data is transferred in byte packets in the I2C protocol, which means in 8-bit frames. Each byte is followed by an acknowledge bit. Data is transferred with the most significant bit (MSB) first. A data transfer sequence is initiated by the master generating the Start condition (S) and sending a header byte. The I2C header consists of the 7-bit I2C device address and the data direction bit (R/_W). the second result byte.
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5. Conversion to Physical Values 5.1 1500 2250 3000 Signal scaling and physical unit The calibrated signal read from the sensor is a signed INTEGER number (two's complement number). The INTEGER value can be converted to the physical value by dividing it by the scale factor (pressure = sensor output ÷ scale factor). The scale factor is specified in Section 2.1. 5.2 Temperature compensation The SDP600 sensor series features digital temperature compensation.
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.4 7. Mechanical Specifications 7.1 SDP610/SDP510 – Tube connection Mechanical concept The SDP600 Series is designed for through-hole technology and can be wave-soldered or hand-soldered to a PCB. • • 7.2 The SDP60x/SDP500 can be directly connected to a manifold using two O-rings. The SDP61x/SDP510 sensors have ports for connecting standard-size plastic tubes.
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. Instructions for Use 8.1 Soldering instructions Standard wave soldering systems may be used for soldering SDP600 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 6 shows an appropriate temperature profile with maximum temperature values. Entrance to solder Flux zone Air flow and tubing Due to the dynamic measurement principle, a small air flow is required.
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. Ordering Information Product number 1-100xxx-xx Span accuracy “Mass flow “ Calibrated range Part name Description / Output Use the part names and item numbers shown in the following table when ordering SDP600 series differential pressure sensors. For the latest product information and local distributors, visit www.sensirion.com. SDP500 I2C, manifold mount 0 to +500 Pa (0 to +2 in. H2O) 4.5% 601-02 SDP510 I2C, tube connection 0 to +500 Pa (0 to +2 in. H20) 4.
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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.