ADS1246 datasheet(2/66 Pages) TI

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ADS1246

ADS1247

ADS1248

SBAS426D – AUGUST 2008 – REVISED MARCH 2010

www.ti.com

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.

PACKAGE/ORDERING INFORMATION(1)

DUAL SENSOR

EXCITATION CURRENT

PACKAGE-

PRODUCT

NUMBER OF INPUTS

VOLTAGE REFERENCE

SOURCES

LEAD

1 Differential

ADS1246

External

TSSOP-16

1 Single-Ended

2 Differential

ADS1247

Internal or External

YES

TSSOP-20

3 Single-Ended

4 Differential

ADS1248

Internal or External

YES

TSSOP-28

7 Single-Ended

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI

website at www.ti.com

ABSOLUTE MAXIMUM RATINGS

(1)

Over operating free-air temperature range (unless otherwise noted).

ADS1246, ADS1247, ADS1248

PARAMETER

MIN

MAX

UNIT

AVDD to AVSS

–0.3

+5.5

AVSS to DGND

–2.8

+0.3

DVDD to DGND

–0.3

+5.5

100, momentary

Input current

10, continuous

Analog input voltage to AVSS

AVSS – 0.3

AVDD + 0.3

Digital input voltage to DGND

–0.3

DVDD + 0.3

Maximum junction temperature

+150

°C

Operating temperature range

–40

+125

°C

Storage temperature range

–60

+150

°C

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated is not implied. Exposure to

absolute-maximum-rated conditions for extended periods may affect device reliability.

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