Texas Instruments SLAU081 manual Jumpers, 3.Jumper/Function Reference, 2.2.2Channel 0 Analog Input

Jumpers

2.2 Jumpers

The table below lists the functions that users can reconfigure along with the shipping condition.

Table 2–3. Jumper/Function Reference

Function	Reference Designator	Subsection
Channel 0
Analog input	W1, W11, W4, W2, W3	3.2.3
Analog output	W14, W19, W18	3.2.4
Disable onboard signal generator	W9	3.2.7
Voltage reference	W16, W17	3.2.8
3.3-V/5-V analog supply select	W13	3.2.9
Clock/timer routing	W20, W21, W22, W23, W24	3.2.10

2.2.1Analog I/O Signal Conditioning

The TLC4541 supports various signal conditioning configurations.

The user has the following options:

-Bypass signal conditioning

-Use the onboard signal conditioning. This consists of an operational amplifier for each input channel configured with a gain of 1.

-Use the prototype area for signal conditioning.

-Use the expansion connector via a TI universal operational amplifier evaluation module (such as SLOP224/SLOP249).

2.2.2Channel 0 Analog Input

	This is the primary analog input and can always be connected externally.
	Analog Input Configuration Channel 0
Reference	Functional Description
Designator
W1	W1 allows the user to select between an analog input via BNC – J1 or IDC – J4 pin 1.
W11	W11 allows selection of either the conditioned or nonconditioned analog input signal.
W4	W4 allows the user to select either the prototype area output or the output from W11.
W2	W2 enables the user to select either the output from the expansion connector or the output
	from the onboard signal generator.
W3	W3 completes the selection choices for channel 0 by determining if the output from W2 or W4
	is chosen to be presented to the ADC.

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