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LMP90100 Datasheet(PDF) 33 Page - Texas Instruments |
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LMP90100 Datasheet(HTML) 33 Page - Texas Instruments |
33 / 69 page Burnout Current = 10 PA VINP VINN VIN0 VIN1 VIN2 VIN3* VIN4* VIN5* VIN6/VREFP2 VIN7/VREFN2 Burnout Current = 10 PA * VIN3, VIN4, VIN5 are only available for LMP90100 and LMP90099 LMP90100 www.ti.com SNAS510P – JANUARY 2011 – REVISED MARCH 2013 Figure 48. Burnout Currents Burnout Current Injection: Burnout currents are injected differently depending on the channel scan mode selected. When BURNOUT_EN = 1 and the device is operating in ScanMode0, 1, or 2, the burnout currents are injected into all the channels for which the BURNOUT_EN bit is selected. This will cause problems and hence in this mode, more than one channel should not have its BURNOUT_EN bit selected. Also, the burnout current will interfere with the signal and introduce a fixed error depending on the particular external sensor. When BURNOUT_EN = 1 and the device is operating in ScanMode3, burnout currents are injected into the last sampled channel on a cyclical basis (Figure 49). In this mode, burnout currents injection is truly done in the background without affecting the accuracy of the on-going conversion. Operating in this mode is recommended. Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback 33 Product Folder Links: LMP90100 |
Similar Part No. - LMP90100_13 |
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Similar Description - LMP90100_13 |
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