MLX90323 Datasheet, PDF (19/25 Pages) Melexis Microelectronic Systems – 4 – 20 mA Loop Sensor Interface with Signal Conditioning and EEPROM

MLX90323
4 – 20 mA Loop Sensor Interface
with Signal Conditioning and EEPROM
Table 5. EEPROM Byte Definitions (continued)
Byte Designation
Note
40-41 Faultval
Value sent to output if checksum test fails is a 10 bit
value.
42-46 Not Used
These bytes are not used and are available to the user.
47
Checksum
EEPROM checksum; value needed to make all bytes
add to 0FFh. Must be set by user if checksum test is
active.
Table 6. Bit Definitions, Coarse Control , Byte 2
Bit Symbol Function
7 IINV Invert signal sign.
6 GNTP1 Gain & offset of temperature
amplifier.
5 GNTP0 GNTP = 0 to 3.
4 CSOF 1 Coarse offset of signal amplifier.
3 CSOF 0 CSOF = 0 to 3.
2
- Coarse gain of signal amplifier.
CSGN = 0 to 3.
1 CSGN1
0 CSGN0
Table 7. PNB_TNB Bit Definition
Maximum number of
temperature gaps
Fixed Gain and
fixed Offset
Maximum number of
signal gaps
5 Gaps
2 Gaps
3 Gaps
3 Gaps
2 Gaps
4 Gaps
Fixed signal
3901090323
Rev 003
Page 19 of 25
Data Sheet
Feb/12