ADS1218_14 Datasheet, PDF (28/45 Pages) Texas Instruments – 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER with FLASH Memory

ADS1218
SBAS187C – SEPTEMBER 2001 – REVISED SEPTEMBER 2005
RDATA
www.ti.com
Read Data
Description: Read a single 24-bit ADC conversion result. On completion of read back, DRDY goes high.
Operands: None
Bytes: 1
Encoding: 0000 0001
Data Transfer Sequence:
DRDY
D_IN
0000 0001 • • • ⁽¹⁾ xxxx xxxx xxxx xxxx xxxx xxxx
D_OUT
MSB
Mid−Byte
LSB
RDATAC
Read Data Continuous
Description: Read Data Continuous mode enables the continuous output of new data on each DRDY. This
command eliminates the need to send the Read Data Command on each DRDY. This mode may be terminated
by either the STOP Read Continuous command or the RESET command.
Operands: None
Bytes: 1
Encoding: 0000 0011
Data Transfer Sequence:
Command terminated when uuuu uuuu equals STOPC or RESET.
D_IN 0000 0011
D_OUT
• • • ⁽¹⁾
uuuu uuuu
MSB
uu uu uuu u
Mid−Byte
uuuu uuuu
LSB
•••
DRDY • • •
D_IN
D_OUT
•••
uuuu uuuu
MSB
uuuu uuuu
uuuu uuuu
Mid−Byte
LSB
NOTE: (1) For wait time, refer to timing specification.
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