iC-TW3 SENSOR SIGNAL CONDITIONER WITH
TEMPERATURE COMPENSATION AND LINE DRIVER
Rev B1, Page 8/24
PROGRAMMING
Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9 Automatic Compensation . . . . . . . . . . . . . . . . . Page 18
VEXT:
Target voltage select
DYNAMIC:
FREQ:
GENTLE:
Automatic compensation control
Automatic adaption frequency
Automatic compensation update rate
I2C INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
CHECKSUM: EEPROM Checksum
Temperature Sensing . . . . . . . . . . . . . . . . . . . . . Page 19
1-Wire Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
XCELSIUS:
FCELSIUS:
CCELSIUS:
CELSIUS:
Temperature sensor select
Fine temperature offset value
Coarse temperature offset value
Current temperature value
A/B Signal Path . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14
SINGLEIN:
ENSIGAB:
CGAINA/B:
COFSA/B:
DGAINA/B:
DOFSA/B:
OGAIN:
Single ended input functionality
Input signal error detection control
Coarse gain select for channel A/B
Coarse offset select for channel A/B
Dynamic gain on channel A/B
Dynamic offset on channel A/B
Output amplifier gain select on chan-
nel A/B
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
ERR_SIG: Signal unconnected alarm
ERR_TEMP: Temperature alarm
ERR_EE: EEPROM error condition
Temperature Compensation . . . . . . . . . . . . . . Page 21
TEMP: Temperature compensation control
FILTER:
PDA/B:
Signal path filter select
Power down control for channel A/B
Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22
PD_CELSIUS: Power down control for internal tem-
perature sensor
Z Signal Path (Index) . . . . . . . . . . . . . . . . . . . . . . Page 16
SINGLEZ:
Single ended input functionality for in-
dex channel Z
TEST_CLK:
CLKDIV:
Internal test clock oscillator control
Internal clock divider select
MODEZ:
BYPASSZ:
GAINZ:
OFSZ:
OGAINZ:
Channel Z output mode select
Channel Z comparator bypass control
Gain select for channel Z
Offset select for channel Z
Output amplifier gain select on chan-
nel Z
Typical Applications . . . . . . . . . . . . . . . . . . . . . . Page 23
ENSIGZ:
PDZ:
Input signal error detection control on
channel Z
Power down control for channel Z
POLARITYZ: Channel Z polarity select
ICHAUS [ IC-HAUS GMBH ]
