LDES025U Datasheet, PDF (1/13 Pages) Sensortechnics GmbH – Digital low differential pressure sensors

LDE Series
Digital low differential pressure sensors
FEATURES
· Pressure ranges from 25 to 500 Pa (0.1 to 2 inH₂O)
· Pressure sensor based on thermal micro-flow
measurement
· High flow impedance
→ very low flow-through leakage
→ high immunity to dust and humidity
→ no loss in sensitivity using long tubing
· Calibrated and temperature compensated
· Unique offset autozeroing feature ensuring
superb long-term stability
· Offset accuracy better than 0.2 %FS
· Total accuracy better than 0.5 %FS typical
· On-chip temperature sensor
· Analog output and digital SPI interface
· RoHS and REACH compliant
· Quality Management System according to
EN ISO 13485 and EN ISO 9001
MEDIA COMPATIBILITY
Air and other non-corrosive gases
SPECIFICATIONS
Maximum ratings
Supply voltage V_S
LDE...3...
LDE...6...
Output current
2.70 ... 3.60 V_DC
4.75 ... 5.25 V_DC
1 mA
Lead specifications
Average preheating temperature gradient 2.5 K/s
Soak time
ca. 3 min
Time above 217 °C
50 s
Time above 230 °C
40 s
Time above 250 °C
15 s
Peak temperature
260 °C
Cooling temperature gradient
-3.5 K/s
Temperature ranges
Compensated
Operating
Storage
0 ... +70 °C
-20 ... +80 °C
-40 ... +80 °C
Humidity limits (non-condensing)
97 %RH
Vibration¹
20 g
Mechanical shock²
500 g
ELECTRICAL CONNECTION³
Top-down view
10 9 8 7 6
12345
Pin Function
1
Reserved
2
VS
3
GND
4
Vout
5
Vout
6
SCLK
7
MOSI
8
MISO
9
/CS
10
Reserved
There are three use cases that will change
the manner in which the LDE sensor is
connected in-circuit. For detailed pin
connections see page 12.
Specification notes:
1. Sweep 20 to 2000 Hz, 8 min, 4 cycles per axis, MIL-STD-883, Method 2007.
2. 5 shocks, 3 axes, MIL-STD-883E, Method 2002.4.
3. The maximum voltage applied to pin 1 and pins 6 through 10 should not exceed V_S+0.3 V.
E / 11815 / E
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