ZHCSE42D April 2015 – April 2019 ADS54J60
PRODUCTION DATA.
The ADS54J60 provides a highly-configurable power-down mode. Power-down can be enabled using the PDN pin or SPI register writes.
A power-down mask can be configured, which allows a trade-off between wake-up time and power consumption in power-down mode. Two independent power-down masks can be configured: MASK 1 and MASK 2 as shown in Table 6. See the master page registers in Table 15 for further details.
To save power, the device can be put in complete power down by using the GLOBAL PDN register bit. However, when JESD must remain linked up while putting the device in power down, the ADC and analog buffer can be powered down by using the PDN ADC CHx and PDN BUFFER CHx register bits after enabling the PDN MASK register bit. The PDN MASK SEL register bit can be used to select between MASK 1 or MASK 2. Table 7 shows power consumption for different combinations of the GLOBAL PDN, PDN ADC CHx, and PDN BUFF CHx register bits.
REGISTER BIT | COMMENT | IAVDD3V (mA) | IAVDD (mA) | IDVDD (mA) | IIOVDD (mA) | TOTAL POWER (W) |
---|---|---|---|---|---|---|
Default | After reset, with a full-scale input signal to both channels | 336 | 358 | 198 | 533 | 2.68 |
GBL PDN = 1 | The device is in complete power-down state | 2 | 6 | 22 | 199 | 0.29 |
GBL PDN = 0,
PDN ADC CHx = 1 (x = A or B) |
The ADC of one channel is powered down | 274 | 223 | 135 | 512 | 2.09 |
GBL PDN = 0,
PDN BUFF CHx = 1 (x = A or B) |
The input buffer of one channel is powered down | 262 | 352 | 194 | 545 | 2.45 |
GBL PDN = 0,
PDN ADC CHx = 1, PDN BUFF CHx = 1 (x = A or B) |
The ADC and input buffer of one channel is powered down | 198 | 222 | 132 | 508 | 1.85 |
GBL PDN = 0,
PDN ADC CHx = 1, PDN BUFF CHx = 1 (x = A and B) |
The ADC and input buffer of both channels are powered down | 60 | 85 | 66 | 484 | 1.02 |