ADS7947

ADS7948

ADS7949

SLAS708 – SEPTEMBER 2010

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

PRODUCT

RESOLUTION (Bits)

INPUT

SAMPLE RATE (MSPS)

ADS7947

12

Unipolar, pseudo-differential

2

ADS7948

10

Unipolar, pseudo-differential

2

ADS7949

8

Unipolar, pseudo-differential

2

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or visit the

device product folder at www.ti.com.

ABSOLUTE MAXIMUM RATINGS

(1)

Over operating free-air temperature range, unless otherwise noted.

ADS7947, ADS7948, ADS7949

MIN

MAX

UNIT

AINxP to GND or AINxN to GND

–0.3

AVDD + 0.3

V

AVDD to GND or DVDD to GND

–0.3

+7

V

Digital input voltage to GND

–0.3

DVDD + 0.3

V

Digital output to GND

–0.3

DVDD + 0.3

V

Operating temperature range

–40

+125

°C

Storage temperature range

–65

+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 under electrical characteristics is not

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

THERMAL INFORMATION

ADS7947/48/49

RTE

UNITS

16 PINS

Junction-to-ambient thermal resistance

54.3

Junction-to-case (top) thermal resistance

53.7

Junction-to-board thermal resistance

19.2

°C/W

Junction-to-top characterization parameter

0.3

Junction-to-board characterization parameter

14.5

Junction-to-case (bottom) thermal resistance

5.2

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

2

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Product Folder Link(s): ADS7947 ADS7948 ADS7949