ADS7229 Datasheet, PDF (11/46 Pages) Texas Instruments – LOW-POWER, 12-BIT, 1MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE

ADS7229
ADS7230
www.ti.com........................................................................................................................................................................................................ SBAS437 – MAY 2008
MANUAL TRIGGER/READ While Sampling
(use internal CCLK, EOC, and INT polarity programmed as active low)
CONVST
EOC
(active low)
Nth - 1
INT
(active low)
FS/CS
SCLK
SDO
t_SAMPLE1 = 3 CCLKs Min
Nth
t_CL
Nth
t_CONV = 18 CCLKs
t₂
t₄
1……………………16
Nth - 1
1
Nth
SDI
1101b
READ Result
1101b
READ Result
Figure 1. Timing for Conversion and Acquisition Cycles for Manual Trigger (Read While Sampling)
MANUAL TRIGGER/READ While Converting
(use internal CCLK, EOC, and INT polarity programmed as active low)
CONVST
EOC
(active low)
INT
(active low)
FS/CS
SCLK
SDO
Nth
t_CL
t₃
Nth
t_CONV = 18 CCLKs
1……………………16
Nth - 1
N + 1th
Nth + 1
t_SAMPLE1 = 3 CCLKs Min
t₄
1
Nth
SDI
1101b
READ Result
1101b
READ Result
Figure 2. Timing for Conversion and Acquisition Cycles for Manual Trigger (Read While Converting)
Copyright © 2008, Texas Instruments Incorporated
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