Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- ELECTRICAL CHARACTERISTICS: AVDD = 5V
- ELECTRICAL CHARACTERISTICS: AVDD = 3V
- DIGITAL CHARACTERISTICS: TMIN to TMAX, DVDD = 2.7V to 5.25V
- FLASH CHARACTERISTICS: TMIN to TMAX, DVDD = 2.7V to 5.25V, unless otherwise specified.
- PIN CONFIGURATION
- TIMING SPECIFICATIONS
- TIMING SPECIFICATION TABLE
- TIMING SPECIFICATION TABLE
- TYPICAL CHARACTERISTICS
- OVERVIEW
- INPUT MULTIPLEXER
- TEMPERATURE SENSOR
- BURNOUT CURRENT SOURCES
- INPUT BUFFER
- IDAC1 AND IDAC2
- PGA
- PGA OFFSET DAC
- MODULATOR
- VOLTAGE REFERENCE INPUT
- ON-CHIP VOLTAGE REFERENCE
- VRCAP PIN
- CLOCK GENERATOR
- CALIBRATION
- DIGITAL FILTER
- DIGITAL I/O INTERFACE
- SERIAL PERIPHERAL INTERFACE
- DATA READY
- DSYNC OPERATION
- MEMORY
- REGISTER BANK
- RAM
- FLASH
- REGISTER MAP
- COMMAND DEFINITIONS
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D
IN
0000 0001
• • •
(1)
xxxx xxxx xxxx xxxx xxxx xxxx
D
OUT
MSB Mid−Byte LSB
DRDY
D
IN
• • •
0000 0011
• • •
(1)
uuuu uuuu uu uu uuu u u uuu uuuu
D
OUT
D
IN
uuuu uuuu u uuu uu uu
D
OUT
MSB Mid−Byte
uuuu uuuu
LSB
DRDY
• • •
• • •
MSB Mid−Byte LSB
ADS1218
SBAS187C – SEPTEMBER 2001 – REVISED SEPTEMBER 2005
RDATA 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:
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.
NOTE: (1) For wait time, refer to timing specification.
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