ADS7950_14 Datasheet, PDF (27/66 Pages) Texas Instruments – 12/10/8-Bit, 1 MSPS, 16/12/8/4-Channel, Single-Ended, MicroPower, Serial Interface ADCs

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ADS7950, ADS7951, ADS7952, ADS7953
ADS7954, ADS7955, ADS7956, ADS7957
ADS7958, ADS7959, ADS7960, ADS7961
SLAS605A – JUNE 2008 – REVISED JANUARY 2010
Device power up or reset
CS
First frame
Device operation in manual mode, Channel 0;
SDO Invalid in first frame
CS
Auto 1 register program (note 1)
CS
Auto 2 register program (note 1)
CS
Alarm register program (note 1)
CS
GPIO register program (note 1)
CS
Operation in manual mode
CS
Operation in Auto 1 mode
CS
Operation in Auto 2 mode
(1) The device continues its operation in Manual mode channel 0 through out the programming sequence and outputs
valid conversion results. It is possible to change channel, range, GPIO by inserting extra frames in between two
programming blocks. It is also possible to bypass any programming block if the user does not intent to use that
feature.
(2) It is possible to reprogram the device at any time during operation, regardless of what mode the device is in. During
programming the device continues its operation in whatever mode it is in and outputs valid data.
Figure 49. Device Power-Up Sequence
OPERATING IN MANUAL MODE
The details regarding entering and running in Manual channel sequencing mode are illustrated in Figure 50.
Table 1 lists the Mode Control Register settings for Manual mode in detail. Note that there are no Program
Registers for manual mode.
Copyright © 2008–2010, Texas Instruments Incorporated
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Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958,
ADS7959, ADS7960, ADS7961