DLH Series

The DLH Series Mini Digital Output Pressure 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 option ease 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 entire very low-power modes between readings to minimize load on the power supply.

These calibrated and compensated sensors provide accurate, stable output over a wide temperature range. This seris is intended for use with non-corrosive, non-iconic working fluids such as air, dry gases, and the like. A protective paralyne coating is optionally available for moisture/harsh media protection. 

  • Features

    • 5 to 60 inH2O Pressure Ranges
    • 1.68V to 3.6V Supply Voltage
    • I2C or SPI Interface (Automatically Selected)
    • Better than 0.5% Accuracy Over Temperature Typical
  • Applications

    • Medical Breathing
    • Enviromental Controls
    • HVAC
    • Industrial Controls
    • Portable/Hand-Held Equipment

equivalent Circuit

Pressure Sensor Maximum Ratings

Supply Voltage, Vs

3.63 Vdc

Common Mode Pressure

10 psig

Lead Temperature (soldering 2-4 sec.)

270°C

Environmental Specification

Compensated Operating

-

Commercial

0 to 70°C

Industrial

-20 to 85°C

Operating

-25 to 85°C

Storage

-40 to 125°C

Humidity Limits (non condensing)

0 to 95% RH

Available Package

Click On Package Image Below To View Package Drawing

Help Me Choose

Choose A Part Number Below To View Performance Characteristics

Pressure Range Differential Absolute Gauge
5 inH2O DLH-L05D -- DLH-L05G
10 inH2O DLH-L10D -- DLH-L10G
20 inH2O DLH-L20D -- DLH-L20G
30 inH2O DLH-L30D -- DLH-L30G
60 inH2O DLH-L60D -- DLH-L60G
 

DLH-L20D Performance Characteristics

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PARAMETER MIN NOM MAX UNITS Notes
Output Span (FSS) - ±0.4 * 2 24 - Dec count 1
Offset Output @ Zero Diff. Pressure (OSdig) - ±0.5 * 2 24 - Dec count -
Total Error Band - ±1.0 ±1.5 %FSS 2
Span Temperature Shift - ±0.25 - %FSS 3
Offset Temperature Shift - ±0.25 - %FSS 3
Offset Warm-up Shift - ±0.20 - %FSS 4
Offset Position Sensitivity (±1g) - ±0.10 - %FSS -
Offset Long Term Drift (One Year) - ±0.30 - %FSS -
Linearity, Hysteresis Error - ±0.25 - %FSS 6
Pressure Digital Resolution - No Missing Codes - - - - -
16-bit Option 15.3 15.5 - bit -
17-bit Option 16.3 16.5 - bit -
18-bit Option 17.0 17.5 - bit -
Temperature Output - - - - -
Resolution - 16 - bit -
Overall Accuracy - 2 - °C -
Supply Current Requirement - - - - 5, 7, 8
During Active State (ICCActive) - 1.5 2.0 mA -
During Active State (ICCIdle) - 100 250 mA -
Power on Delay - - 2.5 ms 5
Data Update Time (tDU) - (see table in DS, pg 2) - ms 5, 7

Standard Pressure Range

Operating Range

±20 inH2O

Proof Pressure

200 inH2O

Burst Pressure

500 inH2O

Nominal Span

±0.4 * 224

Specification notes