SLASF63 june 2023 DAC539E4W
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The comparators and the internal reference in DAC539E4W can be independently powered down through the EN-INT-REF and VOUT-PDN-x bits in the COMMON-CONFIG register, as shown in Figure 7-2. At power up, the DAC output and the internal reference are disabled by default. In power-down mode, the comparator outputs (OUTx pins) are in a high-impedance state. To change this state to 10 kΩ-AGND or 100 kΩ-AGND (at power up), use the VOUT-PDN-x bits.
The comparator power-up state can be programmed to any state (power-down or normal mode) using the NVM. Table 7-7 shows the comparator power-down bits.
REGISTER | VOUT-PDN-x[1] | VOUT-PDN-x[0] | DESCRIPTION |
---|---|---|---|
COMMON-CONFIG | 0 | 0 | Power up channel x. |
0 | 1 | Power down channel x with 10 kΩ to AGND. | |
1 | 0 | Power down channel x with 100 kΩ to AGND. | |
1 | 1 | Power down channel x to Hi-Z. (default). |