Datasheet

DGND CE1 14
REMENB
SCL WE
VREF
SDA
NC C1
C2VDD
7 8AGND VOUT
DAP
LMP91002
SNIS163A –APRIL 2012–REVISED MARCH 2013 www.ti.com
Connection Diagram
Figure 2. 14–Pin WSON – Top View
See Package Number NHL0014B
PIN DESCRIPTIONS
Pin Name Description
1 DGND Connect to ground
2 MENB Module Enable, Active Low
3 SCL Clock signal for I
2
C compatible interface
4 SDA Data for I
2
C compatible interface
5 NC Not Internally Connected
6 VDD Supply Voltage
7 AGND Ground
8 VOUT Analog Output
9 C2 External filter connector (Filter between C1 and C2)
10 C1 External filter connector (Filter between C1 and C2)
11 VREF Voltage Reference input
12 WE Working Electrode. Output to drive the Working Electrode of the chemical sensor
13 RE Reference Electrode. Input to drive Counter Electrode of the chemical sensor
14 CE Counter Electrode. Output to drive Counter Electrode of the chemical sensor
DAP Connect to AGND
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
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