Datasheet

Features
n Compensated digital output
n Ultra-low pressure sensing
n Digital I
2
C 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 (V
s
) ............................................................................................................................ 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 I
2
C
(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 .......................................................................................................................2 ms minimum, 5 ms typical, 125 ms maximum
Proof Pressure....................................................................................................................................................................... 5X full scale pressure
Burst Pressure ................................................................................................................................................................................................ 10 psi
(1)
I
2
C 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 Classication (HBM)..................................................................................................................................................................................2 kV
Marking .................................................................................. Partial model number, media compatibility, pressure type, pressure rating, lot code
Standard Packaging ............................................................................................................................................................... 250 pcs./13-inch reel
Weight .................................................................................................................................................................................1.306 grams (0.046 oz)
Basic Circuit Schematic
Transfer Function Formula
P
psi
= (P
max
– P
min
) •
P
counts
– 0.1 • Max
+ P
min
0.8 • Max
(
)
Where
P
psi
= Measured Pressure in PSI
P
counts
= Pressure Counts from Merit Sensor Part
P
min
= Minimum Pressure
P
max
= Maximum Pressure
Max = 16384 = 14 Bits
1
4
V
s
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
specication, 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.
*RoHS COMPLIANT
*RoHS & AEC COMPLIANT
*RoHS COMPLIANT
AEC APPROVED (Select Models)
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*