IC-GD Datasheet, PDF (25/55 Pages) IC-Haus GmbH – UNIVERSAL I/O INTERFACE

iC-GD
UNIVERSAL I/O INTERFACE
preliminary
Name
ATK
AITKL,
AITKQ
Description
Default value
Bandgap temperature coef- 0x40
ficient
Current measurement (lin- 0x00
ear, square) temperature
coefficients
Digit
unsigned
unsigned
AOCT
AOSZ
Chip temperature offset
Oscillator offset,
left-aligned (i.e. 0xFE in
EEPROM)
0b00000
0x7F
signed (2 K)
Bit 6 = sign
Bit 5:0 = value
AGVPx Positive voltage output
gain
0x100
unsigned
AGVNx Negative voltage output
gain
0x100
unsigned
AOIAx Current output 4...20 mA 0x80
offset
AOV
Voltage output offset
(valid for CH_1 and CH_2)
AGIAmx Current output gain,
for m see Tab. 14, minus
offset at 4...20 mA
0b000
0x80
unsigned
unsigned
unsigned
AGFnx Voltage/current input gain, 0xDE7A
for n see Tab. 15
signed (2 K)
Rev A1, Page 25/55
Interpretation/correction faktor
1 LSB ≈ -0.6...-0.2 mV (non-linear)
AITKL ∗ CHIP_TEMP
1+
2¹⁸
AITKQ ∗ CHIP_TEMP²
−
2²²
1 LSB = 1 K
AOSZ
1 + _c1 , c₁ = 192 for AOSZ ≥ 0
1
1
−
AOSZ
c₂
,
c₂ = 180 for AOSZ < 0
R_G
R_A
+ 0.5
R_G
R_A
+
AGVPx
29
,
R_{G = 19.2}
R_A
R_G
R_A
+ 0.5
R_G
R_A
+
AGVNx
29
,
R_{G = 19.2}
R_A
R_G
R_A
+ 0.5
R_G
R_A
+
AOIAx
28
,
1 LSB = 1.28 mV
R_{G = 15.5}
R_A
R_G
R_A
R_G
R_A
+
+ 0.5
AGIAmx
28
,
R_{G = 16.6}
R_A
X=
AGFnx
1.5 + ₂₁₅
∗ X ^′ + AOFnx
AOFnx Voltage/current input off-
set,
for n see Tab. 15
0x0000
signed (2 K)
(see AGFnx)
Table 16: Description of EEPROM data