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All Sensors DS-0009 Rev A
Specification Notes
NOTE 1: UNLESS OTHERWISE SPECIFIED, ALL PARAMETERS ARE MEASURED AT 5.0 VOLT SUPPLY, POSITIVE PRESSURE APPLIED TO PORT B.
NOTE 2: THE DIGITAL OUTPUT IS A 16 BIT SIGNED BINARY OUTPUT IN A TWO’S COMPLIMENT FORMAT. THE APPLIED PRESSURE IS COMPUTED USING THE PRESSURE CONVERSION
TABLE (BELOW). THE MODE COLUMN IDENTIFIES THE RESOLUTION OPERATING MODE OF THE DEVICE (A = STANDARD RESOLUTION, B = HIGH RESOLUTION). FSO AND
UNITS ARE SHOWN FOR EACH MODEL.
NOTE 3: SHIFT IS WITHIN THE FIRST HOUR OF EXCITATION APPLIED TO THE DEVICE.
NOTE 4: DIGITAL SPAN IS DEPENDENT ON THE RESOLUTION OPERATING MODE. REFER TO THE DIGITAL SPAN TABLE (BELOW) TO IDENTIFY THE DIGITAL SPAN OF THE SPECIFIC
MODEL
. IN THE EVENT OF AN OVER-PRESSURE OR UNDER-PRESSURE CONDITION, THE DIGITAL OUTPUT WILL ONE COUNT HIGHER OR ONE COUNT LOWER (RESPECTIVELY) TO
THE
LISTED DIGITAL SPAN TO INDICATE THE CONDITION.
NOTE 5: OVERALL ACCURACY INCLUDES THE COMBINED EFFECTS OF OFFSET AND SPAN SHIFTS OVER TEMPERATURE, LINEARITY, HYSTERESIS, AND OFFSET AND SPAN CALIBRATION.
Definitions:
Term Name Description
[Pressure Range String] Pressure Range String This is the compensated pressure range of the part.
Syntax: [low limit]<sp>”to”<sp>[high limit]<sp>[units}[mode]
Esample: 20 to 32 mmHgA
Where:
Low limit = 20
High limit = 32
Units = mmHg
Mode = A (absolute pressure) (D differential and G gage
pressure also available.)
[Response String] A Fully Formed Response String Example: “RL=1E43<sp>0000<cr>
[S/N String] Serial Number String YMDD-NN-BSPP (12 character String)
Where:
Y : Year (0~9)
M : Month (A~M, excluding I)
DD: Day of Month
NN: Lot (lot sequence for a given day)
B : Lot Batch# (A~Z)
S : Test Oven Slot# (1~5)
P : Position on Slot (1~15)
Example: 3D23-03-A103
April 23, 2003
3rd lot of the day
Batch A, Slot 1, Position 03
This allows traceability to original test data
[Temperature Range String] Temperature Range String This is the compensated temperature range of the part.
Syntax: [low limit]<sp>[high limit]<sp>”C”
Example: -20 to 85 C
-40 to 125 C and custom ranges also available.
[eeee] Error Codes The error codes are bits packed within a double byte.
The four character string is an ascii hex expression.
The error code bits are:
Bit 0 : Part not factory compensated
Bit 1 : Tdex Overflow
Bit 2 : Tdex Over-range
Bit 3 : Pdex Overflow
Bit 4 : Pdex Over-range
Bit 5 : PWL Overflow
Bit 6 : Scale Overflow
Bit 7 : High Resolution Overflow
Bit 8 : Pressure Output Limited to Specific Value
Bits 9 through 15 : Reserved
Example: 0100
Represents error bit 8 set and the Pressure Output Limited
Notes:
Bit 0 : This should not appear if the part has been calibrated
Bits 1 thru 7 : indicate computational error when compensated
Bit 8: indicates that the pressure applied to the part exceeds the
range of the part and is limit to either the high or low limit
{null} Null Response No response from the part. In the event of a serial number
mismatch the part will not respond (to avoid buss contention.)
Month Codes
January : A
February : B
March : C
April : D
May : E
June : F
July : G
August : H
September : J
October : K
November : L
December : M
