ADS7279IRSAT datasheet(7/51 Pages) TI1

Numer części	ADS7279IRSAT

Szczegółowy opis	LOW-POWER, 14-BIT, 1MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE

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7 / 51 page

ADS7279

ADS7280

www.ti.com ............................................................................................................................................................... SBAS436A – MAY 2008 – REVISED JUNE 2009

ELECTRICAL CHARACTERISTICS (continued)

At TA = –40°C to +85°C, +VA = 2.7V to 3.6V, +VBD = 1.65V to 1.5x(+VA), VREF = 2.5V, fSAMPLE = 1MHz for 3V ≤ +VA ≤ 3.6V,

and fSAMPLE = 900kHz for 3V < +VA ≤ 2.7V using external clock, unless otherwise noted.

ADS7279, ADS7280

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER-SUPPLY REQUIREMENTS

+VBD

1.65

+VA

1.5 × (+VA)

V

Power-

supply

fs ≤ 1MHz

3

3.6

+VA

V

voltage

fs ≤ 900kHz

2.7

3.6

1MHz sample rate,

4.5

6.0

3V

≤ +VA ≤ 3.6V

900kHz sample rate,

mA

4.2

Supply current

2.7V

≤ +VA ≤ 3V

Nap or Auto Nap mode

0.25

0.4

Deep power-down mode

0.001

1

µA

1MSPS, BVDD = 1.8V

0.1

0.5

Buffer I/O supply current

mA

1MSPS, BVDD = 3V

0.5

1.2

AVDD = 3V, BVDD = 1.8V

13.7

18.9

Power dissipation

mW

AVDD = 3V, BVDD = 3V

15.0

21.6

TEMPERATURE RANGE

TA

Operating free-air temperature

–40

+85

°C

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Product Folder Link(s): ADS7279 ADS7280

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