IC-TW3 Datasheet, PDF (22/24 Pages) IC-Haus GmbH – SENSOR SIGNAL CONDITIONER WITH TEMPERATURE COMPENSATION AND LINE DRIVER

iC-TW3 SENSOR SIGNAL CONDITIONER WITH
TEMPERATURE COMPENSATION AND LINE DRIVER
EEPROM address
1-wire address
16
16 + 128 = 144
22
22 + 128 = 150
28
28 + 128 = 156
Rev B1, Page 22/24
EEPROM address
1-wire address
0
gainA
gainB
ofsA
ofsB
ofsZ
1
gainA
gainB
ofsA
ofsB
ofsZ
3 breakpoint look-up table
16
16 + 128 = 144
22
22 + 128 = 150
255
gainA
gainB
ofsA
ofsB
ofsZ
106
106 + 128 = 234
0
gainA
gainB
ofsA
ofsB
ofsZ
1
gainA
gainB
ofsA
ofsB
ofsZ
16 breakpoint look-up table
Figure 7: Temperature LUT memory map
255
gainA
gainB
ofsA
ofsB
ofsZ
TEST MODES
The iC-TW3 posses two registers 0x0E and 0x10
which provide access to basic testing functionality. The
PD_CELSIUS bit allows powering off the internal tem-
perature sensor. If powered down, the temperature
sensor output value can be forced to a desired value
by writing to register 0x40. The user can then test the
compensation circuit without cycling the device tem-
perature.
PD_CELSIUS
Adr 0x0E; Bit 0
R/W
Code
Function
0
Temperature sensor enabled (default)
1
Temperature sensor disabled
Table 42: Temperature sensor power control
TEST_CLK
Adr 0x0E; Bit 1
R/W
Code
Function
0
Clock is not driven on any pin (default)
1
Clock is driven on pin NERR
Table 43: Internal clock oscillator
CLKDIV
Code
1
0
Adr 0x0E; Bit 2
Function
f_system = f_osc (default)
f_system = f_osc / 2
R/W
Table 44: Internal clock divider selection