EVM Analog Interface
summarizes the J7 analog interface connector.
Table 3. J7: Analog Interface Connections
Pin
Number
Signal
Description
J7.2
A6+
Positive analog input for channel AIN6
J7.4
A7+
Positive analog input for channel AIN7
J7.6
A0+
Positive analog input for channel AIN0
J7.8
A1+
Positive analog input for channel AIN1
J7.10
AUX+
Positive analog input for AUX channel
J7.12
A2+
Positive analog input for channel AIN2
J7.14
A3+
Positive analog input for channel AIN3
J7.16
A4+
Positive analog input for channel AIN4
J7.18
A5+
Positive analog input for channel AIN5
J7.20
GND
Analog ground connection
J7.1
A6–
Negative analog input for channel AIN6
J7.3
A7–
Negative analog input for channel AIN7
J7.5
A0–
Negative analog input for channel AIN0
J7.7
A1–
Negative analog input for channel AIN1
J7.9
AUX–
Connected to analog ground
J7.11
A2–
Negative analog input for channel AIN2
J7.13
A3–
Negative analog input for channel AIN3
J7.15
A4–
Negative analog input for channel AIN4
J7.17
A5–
Negative analog input for channel AIN5
J7.19
GND
Analog ground connection
3.1
Connecting Negative Inputs to Ground
The negative analog inputs for all channels (except for the AUX channel) are capable of accepting a ±100-
mV signal. The negative analog inputs can either be connected to the analog ground or a
±100-mV signal can be applied on these inputs.
describes the appropriate jumper settings for
connecting these inputs to analog ground.
Table 4. Connecting Negative Analog Inputs to Ground
Position for Connecting to
Signal
Jumper
Analog Ground
Position for Applying a ±100-mV Signal
A0–
J22
Closed
Open
A1–
J16
Closed
Open
A2–
J26
Closed
Open
A3–
J27
Closed
Open
A4–
J28
Closed
Open
A5–
J29
Closed
Open
A6–
J24
Closed
Open
A7–
J23
Closed
Open
AUX–
NA
Always connected to GND
NA
7
SBAU245A – June 2015 – Revised July 2015
ADS86xxEVM-PDK Evaluation Module
Copyright © 2015, Texas Instruments Incorporated