Electronic Components Datasheet Search |
|
ADS1113IRUGR Datasheet(PDF) 15 Page - Texas Instruments |
|
|
ADS1113IRUGR Datasheet(HTML) 15 Page - Texas Instruments |
15 / 34 page TH_H TH_L Time Time Time Successful SMBusAlert Response Latching Comparator Output Non-Latching Comparator Output InputSignal TH_H TH_L Time Time Time Successful SMBusAlert Response Successful SMBusAlert Response Latching Comparator Output Non-Latching Comparator Output InputSignal ADS1113 ADS1114 ADS1115 www.ti.com ......................................................................................................................................................... SBAS444A – MAY 2009 – REVISED AUGUST 2009 COMPARATOR (ADS1114/15 ONLY) The ADS1114/5 are each equipped with a customizable comparator that can issue an alert on the ALERT/RDY pin. This feature can significantly reduce external circuitry for many applications. The comparator can be implemented as either a traditional comparator or a window comparator via the COMP_MODE bit in the Config register. When implemented as a traditional comparator, the ALERT/RDY pin asserts (active low by default) when conversion data exceed the limit set in the high threshold register. The comparator then deasserts when the input signal falls below the low threshold register value. In window comparator mode, the ALERT/RDY pin asserts if conversion data exceed the high threshold register or fall below the low threshold register. In either window or traditional comparator mode, the comparator can be configured to latch once asserted by the COMP_LAT bit in the Config register. This setting causes the assertion to remain even if the input signal is not beyond the bounds of the threshold registers. This latched assertion can be cleared by issuing an SMBus alert response or by reading the Conversion register. The COMP_POL bit in the Config register configures the ALERT/RDY pin as Figure 28. Alert Pin Timing Diagram When active high or active low. Operational diagrams for Configured as a Traditional Comparator the comparator modes are shown in Figure 28 and Figure 29 . The comparator can be configured to activate the ALERT/RDY pin after a set number of successive readings exceed the threshold. The comparator can be configured to wait for one, two, or four readings beyond the threshold before activating the ALERT/RDY pin by changing the COMP_QUE bits in the Config register. The COMP_QUE bits can also disable the comparator function. CONVERSION READY PIN (ADS1114/5 ONLY) The ALERT/RDY pin can also be configured as a conversion ready pin. This mode of operation can be realized if the MSB of the high threshold register is set to '1' and the MSB of the low threshold register is set to '0'. The COMP_POL bit continues to function and the COMP_QUE bits can disable the pin; however, the COMP_MODE and COMP_LAT bits no longer control any function. When configured as a conversion ready pin, ALERT/RDY continues to require a pull-up resistor. When in continuous conversion mode, the ADS1113/4/5 provide a brief (~8µs) pulse on the ALERT/RDY pin at the end of each conversion. When in single-shot shutdown mode, the ALERT/RDY pin asserts low at the end of a conversion if the COMP_POL bit is set to '0'. Figure 29. Alert Pin Timing Diagram When Configured as a Window Comparator Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 15 Product Folder Link(s): ADS1113 ADS1114 ADS1115 |
Similar Part No. - ADS1113IRUGR |
|
Similar Description - ADS1113IRUGR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |