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DS-0350 Datasheet(PDF) 3 Page - All Sensors Corporation

Part No. DS-0350
Description  DLHR Series Low Voltage Digital Pressure Sensors
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Maker  ASC [All Sensors Corporation]
Homepage  https://www.allsensors.com/
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DS-0350 Datasheet(HTML) 3 Page - All Sensors Corporation

 
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All Sensors
DS-0350 Rev A
Page 3
Specification Notes
note
1: the spAn is the AlGeBrAic difference Between full scAle decimAl counts And the offset decimAl counts.
note
2: totAl error BAnd consists of offset And spAn temperAture And cAliBrAtion errors, lineAritY And pressure hYsteresis errors, offset
wArm-up shift, offset position sensitiVitY And lonG term offset drift errors.
note
3: shift is relAtiVe to 25c.
note
4: shift is within the first hour of excitAtion Applied to the deVice.
note
5: pArAmeter is chArActeriZed And not 100% tested.
note
6: meAsured At one-hAlf full scAle rAted pressure usinG Best strAiGht line curVe fit.
note
7: dAtA updAte time is exclusiVe of communicAtions, from commAnd receiVed to end of BusY stAtus. this cAn Be oBserVed As eoc pin
low- stAte durAtion.
note
8: AVerAGe current cAn Be estimAted As : iccIdle + (tDU / reAdinG interVAl) * iccActiVe). REFER TO FIGURE 2 FOR ACTIVE AND IDLE CONDITIONS OF THE
SENSOR (THE ACTIVE STATE IS WHILE EOC PIN IS LOW).
note
9: THE SENSOR IS CALIBRATED WITH A 3.3V SUPPLY HOWEVER, AN INTERNAL REGULATOR ALLOWS A SUPPLY VOLTAGE OF 1.68V TO 3.6V TO BE USED
WITHOUT AFFECTING THE OVERALL SPECIFICATIONS. THIS ALLOWS DIRECT OPERATION FROM A BATTERY SUPPLY.
Parameter
Symbol
Min
Typ
Max
Units
Notes
Input High Level
-
80.0
-
100
% of Vs
5
Input Low Level
-
0
-
20.0
% of Vs
5
Output Low Level
-
-
-
10.0
% of Vs
5
I2C Pull-up Resistor
-
1000
-
-
5
I2C Load Capacitance on SDA, @ 400 kHz
CSDA
-
-
200
pF
5
I2C Input Capacitance (each pin)
CI2C_IN
-
-
10.0
pF
5
I2C Address
41
decimal
I2C / SPI Electrical Parameters for DLHR Series
Pressure Output Transfer Function
Temperature Output Transfer Function
  
 
  
�����������������2����������������
2�� �����������
Where: 
�������  Is the sensor 24‐bit digital output. 
 
�����   Is the specified digital offset  
For Gage Operating Range sensors:  
0.1 * 224 
For Differential Operating Range sensors: 
0.5 * 224 
 
���������  The sensor Full Scale Span in inches H2
For Gage Operating Range sensors:    Full Scale Pressure 
For Differential Operating Range sensors:   2 x Full Scale Pressure.  
 
  
 
 
 
  
�����������������������∗125
2�� ���� 
 
Where: 
�������  The sensor 24‐bit digital temperature output. 
(Note that only the upper 16 bits are significant) 
 


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