DAC6573IPW datasheet(24/26 Pages) TI

24 / 26 page

Jumper Setting

3-6

3.5

Jumper Setting

Table 3 - 6 shows the function of each specific jumper setting of the EVM.

Table 3 - 6. Jumper Setting Function

Reference

Jumper

Setting

Function

5 - V analog supply is selected for AVDD.

+3.3 - V analog supply is selected for AVDD.

Routes VOUTA to J4-2

Routes VOUTA to J4-10

Disconnects VREFH to the inverting input of output op amp U2.

Connects VREFH to the inverting input of output op amp U2.

Routes the adjustable, buffered, onboard 5-V reference to the VREFH input of the

DACx573.

Routes the user supplied reference from TP1 or J4 - 20 to the VREFH input of the

DACx573.

Negative supply rail of the output op amp U2 is powered by VSS for bipolar operation.

Negative supply rail of the output op amp U2 is tied to AGND for unipolar operation.

VREFL is tied to AGND.

Routes the user-supplied negative reference from TP2 or J4 - 18 to the VREFL input of

the DACx573. This voltage must be within the range of 0V to VREFH.

A0 is set high through pullup-resistor R4. A0 can be driven by GPIO5.

A0 is set low.

A1 is set high through pullup-resistor R3. A1 can be driven by GPIO4.

A1 is set low.

A3 is set high through pullup-resistor R2. A3 can be driven by GPIO1.

LDAC pin is set low and DAC update is accomplished via software.

W10

A2 is set high through pullup-resistor R1. A2 can be driven by GPIO3.

W10

A2 pin is set low.

W11

Routes VOUTB to J4-4

W11

Routes VOUTB to J4-12

DAC6573IPW Datasheet(PDF) 24 Page - Texas Instruments