FEATURES
 Board mount pressure sensor series with
analog voltage output and digital I2C output
 Calibrated and temperature compensated
 Differential/relative, bidirectional differential,
absolute and barometric sensor versions
 Wide variety of pressure ranges: 0.054 psi
(1.5 inch water) up to 100 psi full scale
 Piezoresistive sensor with high precision
digital signal conditioning
 Total accuracy < 0.5 %FSO at room
temperature for standard pressure ranges
 TEB < 1.0 %FSO (-25 … 85 °C) for standard
pressure ranges
 High long term stability
 Fast response time (typ. < 1 ms)
 Supply voltage range: 4.75 … 5.25 V
 Analog output: 0.5 to 4.5 V ratiometric
 Digital output via I2C interface: 15 bit for
pressure and temperature measurement
 Programmable I²C-address
 Ceramic DIP-8 package (width: 0.6 inch)
 Package options for tubing or manifold
mount (O-Ring sealing)
 Substitute product for SM5852 / SM5812
 RoHS compliant
TYPICAL APPLICATIONS
 Static and dynamic pressure measurement
 Barometric pressure measurement
 Vacuum monitoring
 Gas flow
 Fluid level measurement
 Medical instrumentation
 Heating, Ventilation and Air Conditioning
(HVAC)
GENERAL DESCRIPTION
The OEM pressure sensors in the AMS 5812
series are high-precision sensors with two different
outputs, an analog output and a digital I2C output.
The analog 0.5 to 4.5V output is ratiometric to the
supply voltage and provides pressure measurement data only, while the I2C output provides
pressure as well as temperature measurement
data. Both outputs can be used simultaneously.
AMS 5812 sensors combine a micromachined,
high quality piezoresistive pressure sensing
element with a modern, signal conditioning CMOSASIC on a ceramic substrate. They are extensively
calibrated and temperature compensated in a wide
temperature range of -25 to 85 °C. This enables
high precision measurements and excellent drift
and long-term stability.
The AMS 5812 pressure sensors come in a
compact and robust dual in-line ceramic package
(DIP) for assembly on printed circuit boards
(PCBs). Two package variants are available: one
with vertical pressure ports for hose connection
and one for O-ring sealing (N-package type for
manifold mount). The sensors are operational
without any additional components.
The sensors in the AMS 5812 series are available
for all pressure types in various pressure ranges:
differential (relative) pressure sensors in ranges
from 0 … 0.054 psi up to 0 … 100 psi, absolute
pressure types for 0 … 5 psi up to 0 … 30 psi and
11 … 17.5 psi for barometric measurements.
Bidirectional differential sensors are available from
-0.054 … +0.054 psi up to -15 … +15 psi. Custom
specific pressure ranges and modifications are
available on request.