Features
n Compensated digital output
n Ultra-low pressure sensing
n Digital I2C output
n Gauge and differential types
n For use in clean, dry air and non-corrosive
gas environments
n RoHS compliant*
Applications
Industrial:
n HVAC systems
n Process monitoring
n Packaging automation
**Medical Devices (low/medium risk):
n Diagnostic equipment
n Analysis equipment
BPS120 Series - 12 mm Digital Low Pressure Sensor
Electrical Characteristics
Supply Voltage (Vs) ............................................................................................................................ 2.7 V minimum, 5 V typical, 5.5 V maximum
Supply Current @ 5 V ................................................................................................................1.2 mA minimum, 2 mA typical, 3.5 mA maximum
Performance Characteristics
Operating Temperature ................................................................................................................................... -40 °C to +85 °C (-40 °F to +185 °F)
Storage Temperature .................................................................................................................................... -55 °C to +100 °C (-67 °C to +212 °F)
Pressure Range......................................................................................0.15 to 1.0 psi (10.3 to 68.9 mbar; 1.03 to 6.89 KPa; 4.2 to 27.7 in H2O)
Output ..................................................................................................................................................................................................Digital I2C (1)
Effective ADC Resolution ................................................................................................................................................................................13 bit
Accuracy @ 25 °C ................................................................................................................................................................................. ±0.25 % FS
Total Error Band over 0 °C to 60 °C (+32 °F to +140 °F) ........................................................................................................................ ± 1.5 % FS
Long Term Stability ................................................................................................................................................................................. ± 0.5 % FS
Startup Time .................................................................................................................................................................................. 15 ms maximum
Digital Update Time ............................................................................................................................................................................8.5 ms typical
Proof Pressure....................................................................................................................................................................... 5X full scale pressure
Burst Pressure ................................................................................................................................................................................................ 10 psi
(1) I2C address is set to (0x28). Alternative addresses are available. Consult the factory for custom options.
Product Characteristics
Media Compatibility .........................................................................................................................................................Non-corrosive dry gasses
Moisture Sensitivity Level .......................................................................................................................................................................................1
ESD Classication (HBM)..................................................................................................................................................................................2 kV
Marking .................................................................................. Partial model number, media compatibility, pressure type, pressure rating, lot code
Standard Packaging ............................................................................................................................................................... 250 pcs./13-inch reel
Weight .................................................................................................................................................................................1.307 grams (0.046 oz)
Basic Circuit Schematic
Transfer Function Formula
Ppsi = (Pmax – Pmin) •
Pcounts – 0.1 • Max
+ Pmin
0.8 • Max
()
Where
Ppsi = Measured Pressure in PSI
Pcounts = Pressure Counts
Pmin = Minimum Pressure
Pmax = Maximum Pressure
Max = 16384 = 14 Bits
1
4
Vs
GND
SDA 7
SCL 8
DIGITAL
OUT
SSC
Note: Power supply decoupling included.
Consult factory for custom options such as supply voltage,
temperature calibration range, output range accuracy
specication, and update rate.
* RoHS3 Directive 2015/863 Amendments of Annex II on March 31, 2015
** Bourns® products have not been designed for and are not intended for use in “lifesaving,” “life-critical” or “life-sustaining” applications nor any other applications
where failure or malfunction of the Bourns® product may result in personal injury or death. See Legal Disclaimer Notice on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
3312 - 2 mm SMD Trimming Potentiometer
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BPS120 Series - 12 mm Digital Low Pressure Sensor
I2C Parameters
SCL Clock Frequency fSCL...............................................................................................................................................................100 to 400 kHz
Start Condition Hold Time Relative to SCL Edge tHDSTA ............................................................................................................................... 0.1 µs
Minimum SCL Clock Low Width1 tLOW ..........................................................................................................................................................0.6 µs
Minimum SCL Clock High Width1 tHIGH ......................................................................................................................................................... 0.6 µs
Start Condition Setup Time Relative to SCL Edge tSUSTA ............................................................................................................................. 0.1 µs
Data Hold Time on SDA Relative to SCL Edge tHDDAT ..................................................................................................................................0.0 µs
Data Setup Time on SDA Relative to SCL Edge tSUDAT ................................................................................................................................0.1 µs
Stop Condition Setup Time on SCL tSUSTO ...................................................................................................................................................0.1 µs
Bus Free Time Between Stop Condition and Start Condition tBUS ................................................................................................................... 2 µs
1 Combined low and high widths must equal or exceed minimum SCLK period.
I2C Parameters
I2C Communication
Communication to the Model BPS120 is read only. To read the pressure counts, the master performs a read request by asserting a start
condition, sending the 7-bit address of the part (0x28), and sets the read/write bit. The master then waits for an acknowledgement. The
acknowledgement is sent by the pressure sensor along with 2 bits of status and bits 13:8 of the pressure counts, the master acknowledges the
rst 8 bits, and the pressure sensor sends the remaining 8 bits of data. The master then does not acknowledge and sends a stop condition,
signaling the end of the transaction.
3312 - 2 mm SMD Trimming Potentiometer 3312 - 2 mm SMD Trimming Potentiometer
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BPS120 Series - 12 mm Digital Low Pressure Sensor
Product Dimensions
Cross Section Terminal Assignment
MEMS Sensing Element
(Differential Pressure)
Cover/Mechanical Protection
Media Inlet Ports
Electrical Connections
Integrated Signal
Conditioning
(ASIC)
Filter Capacitor
Soft Die Attach Material
DEVICE PINOUT
P1 Vs
P2 N/C
P3 N/C
P4 VSS - Ground
P5 N/C
P6 N/C
P7 SDA - I2C Data
P8 SCL - I2C Clock
10.2
(0.402)
1234
8765
1.3
(0.051)
2.5
(0.098) 2.5
(0.098)
2.5
(0.098)
2.5
(0.098)
2.5
(0.098)
2.5
(0.098)
11.3
(0.445)
8.4
(0.331)
11.4
(0.449)
12.7
(0.500)
2.2
(0.087)
DIA.
2.5
(0.098)
SMT LANDING PAD LAYOUT
1.9
(0.075)
3.6
(0.142)
8 7 6 5
1 2 3 4
Recommended PCB Layout
10.2
(0.402)
1234
8765
1.3
(0.051)
2.5
(0.098) 2.5
(0.098)
2.5
(0.098)
2.5
(0.098)
2.5
(0.098)
2.5
(0.098)
11.3
(0.445)
8.4
(0.331)
11.4
(0.449)
12.7
(0.500)
2.2
(0.087)
DIA.
2.5
(0.098)
SMT LANDING PAD LAYOUT
1.9
(0.075)
3.6
(0.142)
8 7 6 5
1 2 3 4
TOLERANCES: 0.3
(0.012)
DIMENSIONS: MM
(INCHES)
3312 - 2 mm SMD Trimming Potentiometer
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BPS120 Series - 12 mm Digital Low Pressure Sensor
How To Order
BPS120 - A D 0P30 - 2 D G
Model Series
Digital
Media Compatibility
A = Air/Gas
Pressure Type
G = Gauge
D = Differential
Pressure (psi)
0P15 = 0.15
0P30 = 0.30
01P0 = 1.0
Terminal Pins
2 = Surface Mount Terminals
Port Style
D = Dual Port, Horizontal
Packaging Designator
G = 250 pcs. per 13-inch Reel
Solder Prole
300
250 °C Max.
(5 Seconds Max.)
150 ±5 °C
Time
200
100
80-100 Seconds
Processing Method: Reflow soldering with infrared heat or forced air convection (only once).
60 Seconds Max.
TEMPERATURE (°C)
Notes:
1. No clean solder paste is recommended.
2. Aqueous wash is not recommended.
3. Use of water soluble soldering ux
should be avoided due to possible
corrosion.
4. Multiple passes through the soldering
process is not recommended.
5. Other SMD processes and proles
should be veried by the customer.
3312 - 2 mm SMD Trimming Potentiometer
250 pieces per 13-inch reel.
Meets specications of EIA-481-1 or EIA-481-2.
Packaging Specication
DIMENSIONS: MM
(INCHES)
3312 - 2 mm SMD Trimming Potentiometer
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
BPS120 Series - 12 mm Digital Low Pressure Sensor
25.4
(1.0)
29.21
(1.15)
330.2
(13.0) DIA.
20.32
(0.8) DIA.
12.7
(0.5) DIA.
101.6
(4.0) 32.0
(1.260)
3.81
(0.15)
EQUAL SPACED
3 PLCS. 2.0
(0.079)
4.0
(0.157)
16.0
(0.630)
TOLERANCES: 0.25
(0.010)
REV. 04/19
Asia-Pacic: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
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afliates (collectively, “Bourns”).
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complete before placing orders for Bourns® products.
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statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns® product in a user application may vary
from the data sheet characteristics and parameters due to (i) the combination of the Bourns® product with other components
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PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
C1753 05/17/18R
