ADS7881 datasheet(11/29 Pages) TI

Part #	ADS7881

Description	16-BIT, 1.25 MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICRO POWER

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Manufacturer	TI [Texas Instruments]

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†Signal internal to device

tCONV

CONVST

BUSY

CS = 0

CONVERT†

SAMPLING†

(When CS = 0)

BYTE

RD

tw1

tpd2

tpd1

tw4

tw2

tw3

tCONV

t(ACQ)

th1

th2

ten

tdis

D [7:0]

Hi−Z

DB[15:8]

Hi−Z

D [15:8]

D [7:0]

DB[7:0]

tsu4

tcycle

tsu(AB)

CONVST

(used in ABORT)

(used in normal

conversion)

tpd1

Data to

be read†

Invalid

th4

tsu5

Previous Conversion

Current Conversion

ADS8406

SLAS426A – AUGUST 2004 – REVISED DECEMBER 2004

TIMING DIAGRAMS (continued)

Figure 3. Timing for Conversion and Acquisition Cycles With CS Tied to BDGND, RD Toggling

11

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