Datasheet

DataReady
Start
Conversion
DRDY/DOUT
SCLK
CLKSource
Wakeup
Power-DownMode
PDWN
t
WAKEUP
t
TS_RDY
t
PDWN
ADS1131
SBAS449C –JULY 2009–REVISED OCTOBER 2013 www.ti.com
POWER-DOWN MODE Power-Down mode also resets the entire circuitry.
Power-Down mode can be initiated at any time during
Power-Down mode shuts down the entire ADC
readback; it is not necessary to retrieve all 18 bits of
circuitry and reduces the total power consumption
data beforehand. Figure 9 shows the wake-up timing
close to zero. To enter Power-Down mode, simply
from Power-Down mode.
hold the PDWN pin low.
Figure 9. Wake-Up Timing from Power-Down Mode
SYMBOL DESCRIPTION MIN TYP UNITS
t
WAKEUP
(1)
Wake-up time after Power-Down mode 7.95 μs
t
PDWN
(1)
PDWN pulse width 26 μs
(1) Based on an ideal internal oscillator.
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