Texas Instruments DAC7741EVM manual Factory Default Setting, Factory Default Jumper Setting

Factory Default Setting

3.1 Factory Default Setting

The EVM board is set to its default configuration from factory as described on the table below to operate in bipolar ±10V mode of operation using the internal reference.

Table 3-1. Factory Default Jumper Setting

Reference	Jumper	Function
	Position
W1	OPEN	VREF output pin is floated and not used for offset adjustment.
W2	2-3			pin is tied to AGND to enable 10 V internal reference.
		REFEN
W3	1-2	REFOUT pin is strapped to REFIN to provide 10 V internal voltage reference.
W4	OPEN	Onboard external reference through U3 is disconnected.
W5	1-2	Negative supply rail of U2 op-amp is supplied with -15 V.
W6	OPEN	REFADJ pin is floated.
W7	CLOSE	RFB2 pin is strapped to VOUT pin for DAC output feedback.
W8	CLOSE	TEST pin is tied to DGND.
W9	OPEN	SJ pin is floated.
W10	OPEN	RFB1 is floated.
W11	CLOSE	AGND and DGND are tied together to a common point.
W12	1-2	Positive supply rail of U2 op-amp is supplied with 15 V.
W13	3-4	Buffered output of DAC is channeled through to J5 and J4-2.
W14	OPEN	External reference is disconnected from the negative input of U2 to configure U2 for
		unity gain.
W15	OPEN	Configure U2 op-amp for unity gain.
W16	OPEN	RSTSEL pin is tied high to set DAC reset value to midscale.
W17	OPEN		pin is tied high by default.
		RST

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