ADS8028

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SBAS549B – MAY 2011 – REVISED MARCH 2012

ELECTRICAL CHARACTERISTICS (continued)

Minimum and maximum specifications apply from TA = –40°C to +125°C. Typical specifications are at TA = +25°C.

All specifications at AVDD = 2.7 V to 5.25 V, DVDD = 1.65 V to 5.25 V, fSAMPLE = 1 MHz, fSCLK = 20 MHz, and VREF = 2.5 V

internal, unless otherwise noted.

ADS8028

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER CONSUMPTION

Power consumption

AVDD = DVDD = 3.0 V

17

18.9

mW

Operational

AVDD = DVDD = 3.6 V

20.9

22.7

mW

Normal mode

AVDD = DVDD = 5.25 V

36.8

39.4

mW

AVDD = DVDD = 3.6 V

14.8

16.6

mW

Static

AVDD = DVDD = 5.25 V

23.6

26.2

mW

STANDBY mode

AVDD = DVDD = 3.6 V

5.4

9

mW

Power-down mode

AVDD = DVDD = 3.6 V

3.6

36

µW

TEMPERATURE

Operating temperature range

–40

+125

°C

THERMAL INFORMATION

ADS8028

THERMAL METRIC(1)

RTJ (QFN)

UNITS

20 PINS

θJA

Junction-to-ambient thermal resistance

32.8

θJCtop

Junction-to-case (top) thermal resistance

27.8

θJB

Junction-to-board thermal resistance

9.3

°C/W

ψJT

Junction-to-top characterization parameter

0.3

ψJB

Junction-to-board characterization parameter

9.3

θJCbot

Junction-to-case (bottom) thermal resistance

1.9

(1)

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

Copyright © 2011–2012, Texas Instruments Incorporated

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