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ADS7142 Datasheet(PDF) 37 Page - Texas Instruments |
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ADS7142 Datasheet(HTML) 37 Page - Texas Instruments |
37 / 74 page High Threshold High Threshold - Hysteresis Sets the Output of the Comparator Device Starts storing data in buffer and sets the Latched flag and alert pin after count(=4) is reached Conversion [0] for CHx Conversion [N+ 15] for CHx Hysteresis Conversion [N] for CHx Conversion [N + 15] for CHx Conversion [N + 14] for CHx Conversion [N] for CHx Data Buffer SEQ_START bit is set by user BUSY/RDY Time tCC Device stops conversions and stops storing data in buffer after the data buffer is filled High Threshold Sets the Output of the Comparator Device Starts storing data in buffer and sets the Latched flag and alert pin after the count is reached Conversion [0] for CHx Conversion [N+ 14] for CHx Conversion [N] for CHx Conversion [N + 15] for CHy Conversion [N + 14] for CHx Conversion [N] for CHx Data Buffer SEQ_START bit is set by user BUSY/RDY Time Device stops conversions and stops storing data in the buffer after the data buffer is filled Conversion [1] for CHy Conversion [N+1] for CHy Conversion [N+ 15] for CHy Conversion [N + 1] for CHy tCC CHx is the channel which first triggered the ALERT 37 ADS7142 www.ti.com SBAS773A – SEPTEMBER 2017 – REVISED DECEMBER 2017 Product Folder Links: ADS7142 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 7.4.3.1.2 Autonomous Mode with Post Alert Data In this mode, the device captures the next sixteen conversion results after the Alert is active. Once these sixteen conversions are stored in the data buffer, all conversion stops. For this mode, Set DATA_BUFFER_OPMODE to 110b. In this mode, the device starts converting the data on setting the SEQ_START bit and stores the data in the data buffer when one of the digital comparator flags is set after the crossing a high threshold or a low threshold for the channels selected in the sequence. if the SEQ_ABORT bit is set before the data buffer is filled, the device aborts the sequence and stops storing the conversion results. Figure 60 and Figure 61 illustrates the filling of the data buffer in autonomous mode with Post Alert Data. Figure 60. Post Alert Data for Single Channel Configurations Figure 61. Post Alert Data for Dual Channel Configuration |
Similar Part No. - ADS7142_17 |
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Similar Description - ADS7142_17 |
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