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Background
The Basic Amplified ABP Series is a piezoresistive silicon
pressure sensor offering a ratiometric analog or digital output for
reading pressure over the specified full scale pressure span and
temperature range.
The ABP Series is fully calibrated and temperature compensated
for sensor offset, sensitivity, temperature effects and accuracy
errors (which include non-linearity, repeatability and hysteresis)
using an on-board Application Specific Integrated Circuit
(ASIC). Calibrated output values for pressure are updated at
approximately 1 kHz for analog and 2 kHz for digital.
The ABP Series is calibrated over the temperature range of 0
°C to 50 °C [32 °F to 122 °F]. The sensor is characterized for
operation from a single power supply of either 3.3 Vdc or 5.0
Vdc. These sensors measure gage and differential pressures.
The Basic Amplified pressure sensors are intended for use with
non-corrosive, non-ionic gases, such as air and other dry gases.
The following options extend the performance of these sensors
to non-corrosive liquids.
• Nosiliconegelcoating:Theinputportislimitedtonon-
corrosive, non-ionic media such as dry air and gases and
should not be exposed to condensation. The gases are
limited to media that are compatible with high temperature
polyamide, silicone, alumina ceramic, silicon, gold, and
glass.
• Siliconegelcoating:Usesthesamematerialsinthewetted
media path but is protected from condensation by a
silicone-based gel coating; allows use in applications where
condensation may occur.
All products are designed and manufactured according to ISO
9001 standards.
Application Note
Basic Board Mount Pressure Sensors
ABP Series—High Accuracy
Digital or Analog Output, Compensated/Amplified
60 mbar to 10 bar | 6 kPa to 1 MPa | 1 psi to 150 psi
Sensing and Control
Solutions
POTENTIAL MEDICAL APPLICATIONS
Blood analyzers
Description: Blood analyzers using flow cytometry are used to
examine microscopic cells and chromosomes by suspending
them in a stream of fluid and passing them by an electronic
detection apparatus in order to analyze their characteristics.
Flow cytometry is often used to diagnose health disorders, such
as blood cancers, as well as in research and clinical practice.
Function in application: May be used to regulate the pressure
in the pump system to draw and transport the blood samples.
Customer benefits: Designed to provide optimum system
performance. The correct pressure ensures that the cells pass
the LASER measurement device in the system one cell at a
time and in focus so that they may be detected correctly by the
equipment.
Blood pressure monitoring
Description: Blood pressure is measured by placing an
inflatable cuff on the patient that restricts blood flow. A
manometer is typically then used to measure the pressure
which could be replaced by a pressure sensor to automate the
reading and facilitate recording the patient’s blood pressure
measurement remotely so that multiple patients at the same
time can be monitored by the medical staff.
Function in application: May be used to measure blood
pressure.
Customer benefits: An accurate, compensated sensor is
required to maintain accurate blood pressure readings. The
sensor’s small size helps to ensure that when the cuff is
designed, it is as small as possible. The sensor’s light weight
helps to ensure that the cuff is light weight as well. These
sensor attributes contribute to the patient’s comfort because
sometimes patients must wear a blood pressure cuff for long
periods of time.
Hospital beds
Description: A hospital bed is designed to be adjustable for
patients to ease comfort and to provide patient accessibility by
physicians and the nursing staff. The air mattress bed style is
generally intended for long-term use by the patient.
Function in application: May be used to monitor the air
pressure in the bed so that the desired firmness can be
controlled.
Customer benefits: Designed to maintain proper level of
pressure so that the firmness can be controlled regardless of the
patient’s weight. The proper control of the pressure improves
