Datasheet

ADS1244
16
SBAS273
www.ti.com
DRDY/DOUT
SCLK
23 22 21 0
MSB LSB
124
DRDY/DOUT
SCLK
23 22 21 0
12425
DRDY/DOUT
SCLK
23 22 21 0
1242526
Begin cal.
Data ready after cal.
DRDY/DOUT
SCLK
Data ready.
Wakeup and
start conversion.
Sleep Mode
23 22 21 0
124
DRDY/DOUT
SCLK
23 22 21 0
12425
Data ready after
wakeup and cal.
Wakeup and
begin cal.
Sleep Mode
a. Data Retrieval.
b. Data Retrieval with DRDY/DOUT Forced HIGH Afterwards.
c. Self-Calibration.
d. Sleep Mode/Single Conversions.
e. Sleep Mode/Single Conversions with Self-Calibration on Wakeup.
FIGURE 20. Summary of Serial Interface Waveforms.
SUMMARY OF SERIAL INTERFACE WAVEFORMS