J1: Analog Connector
2-3
Circuit Description
2.1.1
J1: Analog Connector
The analog connector pinout is shown in Figure 2−2 and described in
Table 2−1.
Figure 2−2.
Analog Connector Pinout
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
20
AN0+
AN0−
REF−
REF+
AGND
AGND
AN1−
AN2−
AN3−
AN1+
AN2+
AN3+
AGND
AGND
AGND
OBREF
Although certain pins are described as “negative,” never apply
voltages less than −0.3V to these pins. The ADS1224 is not a
bipolar-input device, and it cannot accept negative voltages below
−0.3V without damaging the functional operation of the unit.
The negative input pins are so named because the voltage on such
a pin is subtracted from a positive input pin during a reading.
Summary of Contents for ADS1224EVM
Page 1: ... April 2004 User s Guide SBAU095 Data Acquisition Products ...
Page 14: ...Setting Up 1 6 ...
Page 30: ...Clock Circuitry 3 4 ...
