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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ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
(1)
ADS1218
SBAS187C – SEPTEMBER 2001 – REVISED SEPTEMBER 2005
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated
circuits be handled with appropriate precautions. Failure to observe proper handling and installation
procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
For the most current package and ordering information, see the Package Option Addendum at the end of this
document, or see the TI web site at www.ti.com .
AV
DD
to AGND –0.3V to +6V
DV
DD
to DGND –0.3V to +6V
Input Current 100mA, Momentary
Input Current 10mA, Continuous
A
IN
GND – 0.5V to AVDD + 0.5V
AV
DD
to DV
DD
–6V to +6V
AGND to DGND –0.3V to +0.3V
Digital Input Voltage to GND –0.3V to DV
DD
+ 0.3V
Digital Output Voltage to GND –0.3V to DV
DD
+ 0.3V
Maximum Junction Temperature +150°C
Operating Temperature Range –40°C to +85°C
Storage Temperature Range –60°C to +100°C
Lead Temperature (soldering, 10s) +300°C
(1) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute
maximum conditions for extended periods may affect device reliability.
2