ADS7882IPFBT datasheet(4/29 Pages) TI

номер детали	ADS7882IPFBT

подробное описание детали	12-BIT, 3-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER

PDF	29 Pages

Scroll/Zoom	100%

производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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4 / 29 page

ADS7882

SLAS630 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com

SPECIFICATIONS (continued)

TA = –40°C to 85°C, +VA = 5 V, +VBD = 5 V or 3.3 V, Vref = 2.5 V, fsample = 3 MHz (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INPUT/OUTPUT

Logic family

CMOS

VIH

IIH = 5 µA

+VBD –1

+VBD +0.3

VIL

IIL = 5 µA

–3

0.8

Logic level

VOH

IOH = 2 TTL loads

+VBD –0.6

+VBD

VOL

IOL = 2 TTL loads

0.4

Straight

Data format

Binary

POWER SUPPLY REQUIREMENTS

+VBD

2.7

3.3

5.25

Power supply

voltage

+VA

4.75

5.25

Supply current, +VA, 3 MHz sample rate

Power dissipation, 3 MHz sample rate

+VA = 5 V

110

NAP MODE

Supply current, +VA

Power-up time (7)

nsec

POWER DOWN

Supply current, +VA

2.5

µA

Power down time(8)

From simulation results

µsec

µF storage capacitor on REFOUT to

Power up time

msec

AGND

Invalid conversions after power up or reset

TEMPERATURE RANGE

Operating free-air

–40

°C

(7)

Minimum acquisition time for first sampling after the end of nap state must be 60 nsec more than normal.

(8)

Time required to reach level of 2.5

µA.

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