Datasheet

2-1
Analog Interface
 
The ADS8383 analog-to-digital converter has both a positive and negative
analog input pin. The EVM provides ground for the negative input close the de-
vice via SJP3, or allows a user-furnished ground wire. The negative input pin
has a range of –200 mV up to 200 mV, and is shorted on the EVM via SJP3.
A signal for the positive input pin can be applied at connector P1, pin 2 (shown
in Table 2−1 ), or applied to the center pin of SMA connector J2.
Table 2−1.Analog Input Connector
Description Signal Name Connector.Pin# Signal Name Description
Pin tied to Ground AGND P1.1 P1.2 + Noninverting Input Channel
Reserved N/A P1.3 P1.4 N/A Reserved
Reserved N/A P1.5 P1.6 N/A Reserved
Reserved N/A P1.7 P1.8 N/A Reserved
Pin tied to Ground AGND P1.9 P.10 N/A Reserved
Pin tied to Ground AGND P1.11 P1.12 N/A Reserved
Reserved N/A P1.13 P1.14 N/A Reserved
Pin tied to Ground AGND P1.15 P1.16 N/A Reserved
Pin tied to Ground AGND P1.17 P1.18 N/A Reserved
Reserved N/A P1.19 P1.20 REF+ External Reference Input
Topic Page
2.1 Signal Conditioning 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Reference 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2