IC-TW3 Datasheet, PDF (3/24 Pages) IC-Haus GmbH – SENSOR SIGNAL CONDITIONER WITH TEMPERATURE COMPENSATION AND LINE DRIVER

iC-TW3 SENSOR SIGNAL CONDITIONER WITH
TEMPERATURE COMPENSATION AND LINE DRIVER
PACKAGES
Rev B1, Page 3/24
PIN CONFIGURATION QFN32 5 mm x 5 mm
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
TW3
5
20
6
code...
19
7
...
18
8
17
9 10 11 12 13 14 15 16
PIN FUNCTIONS
No. Name Function
1 PINZ
Signal Input Z+
2 NINZ
Signal Input Z-
3 TESTEN Test Mode Enable Input
4 CLK
External Clock Input
5 NZO
Signal Output Z-
6 ZO
Signal Output Z+
7 GNDB Driver Ground
8 VDDB +3...+5.5 V Driver Supply Voltage
9 NBO
Signal Output B-
10 BO
Signal Output B+
11 GND
Digital Ground
12 SCL
I2C Interface, clock line
13 SDA
I2C interface, data line
14 VDD
+3...+5.5 V Digital Supply Voltage
15 GNDA Driver Ground
16 n.c.
not connected
17 AO
Signal Output A+
18 NAO
Signal Output A-
19 VDDA +3...+5.5 V Driver Supply Voltage
20 1W
1-Wire Interface, bidirectional port
21 NERR Error Message Output, active low
22 NRST External Reset Input, active low
23 NSTORE* Coefficient Store Input, active low
24 n.c.
not connected
25 NINA
Signal Input A-
26 PINA
Signal Input A+
27 KELVIN External Temperature Sensor Input
28 GNDIN Input Ground
29 VDDIN +3...+5.5 V Input Supply Voltage
30 PINB
Signal Input B+
31 NINB
Signal Input B-
32 VC
1.21 V Reference Voltage Output,
Reference Voltage Input
TP TP**
Thermal Pad
Notes:
*) Pin NSTORE should be wired to VDD.
**) The Thermal Pad of the QFN package (bottom side) is to be connected to a ground plane on the PCB which
must have GND potential.