DLHR Series Low Voltage Digital Pressure Sensors
Features
• 0.5 to 60 inH2O Pressure Ranges
• 1.68V to 3.6V Supply Voltage Range
• I2C or SPI Interface (Automatically Selected)
• Better than 0.25% Accuracy
• High Resolution 16/17/18 bit Output
Applications
• Medical Breathing
• Environmental Controls
• HVAC
• Industrial Controls
General Description
• Portable/Hand-Held Equipment
The DLHR Series Mini Digital Output Sensor is based on All Sensors’CoBeam2 TM Technology. This reduces package stress
susceptibility, resulting in improved overall long term stability and vastly improves the position sensitivity.
The digital interface eases integration of the sensors into a wide range of process control and measurement systems,
allowing direct connection to serial communications channels. For battery-powered systems, the sensors can enter very
low-power mode between readings to minimize load on the power supply.
These calibrated and compensated sensors provide accurate, stable output over a wide temperature range. This series
is intended for use with non-corrosive, non-ionic working fluids such as air, dry gases and the like. A protective parylene
coating is optionally available for moisture/harsh media protection.
Standard Pressure Ranges
Equivalent Circuit
Device
Operating Range Proof Pressure
Burst Pressure
Nominal Span
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.4 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
0.8 ꢀ 224 counts
Vs
DLHR-F50D
DLHR-L01D
DLHR-L02D
DLHR-L05D
DLHR-L10D
DLHR-L20D
DLHR-L30D
DLHR-L60D
DLHR-F50G
DLHR-L01G
DLHR-L02G
DLHR-L05G
DLHR-L10G
DLHR-L20G
DLHR-L30G
DLHR-L60G
0.5 inH2O
1 inH2O
100 inH2O
100 inH2O
100 inH2O
200 inH2O
200 inH2O
200 inH2O
200 inH2O
200 inH2O
100 in H2O
100 inH2O
100 inH2O
200 inH2O
200 inH2O
200 inH2O
200 inH2O
200 inH2O
300 inH2O
300 inH2O
300 inH2O
300 inH2O
300 inH2O
500 inH2O
500 inH2O
800 inH2O
300 inH2O
300 inH2O
300 inH2O
300 inH2O
300 inH2O
500 inH2O
500 inH2O
800 inH2O
SCL
SDA
I2C
2 inH2O
5 inH2O
EOC
10 inH2O
Gnd
20 inH2O
30 inH2O
60 inH2O
- OR -
0 to 0.5 inH2O
0 to 1 inH2O
0 to 2 inH2O
0 to 5 inH2O
0 to 10 inH2O
0 to 20 inH2O
0 to 30 inH2O
0 to 60 inH2O
Vs
SCLK
MISO
MOSI
/SS
SPI
EOC
Gnd
Pressure Sensor Maximum Ratings
Environmental Specifications
Supply Voltage (Vs)
3.63 Vdc
10 psig
270 °C
Temperature Ranges
Compensated:
Commercial
Industrial
0°C to 70°C
-20°C to 85°C
Common Mode Pressure
Lead Temperature (soldering 2-4 sec.)
Operating
Storage
-25°C to 85 °C
-40°C to 125 °C
Humidity Limits (non condensing)
0 to 95% RH
All Sensors
DS-0350 Rev A
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