Texas Instruments INA2191EVM, User Manual

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Table of Contents
1 Overview .................................................................................................................................................................................. 3
1.1 EVM Kit Contents............................................................................................................................................................... 3
1.2 Related Documentation From Texas Instruments.............................................................................................................. 3
2 Hardware ................................................................................................................................................................................. 4
2.1 Features............................................................................................................................................................................. 4
3 Operation ................................................................................................................................................................................. 5
3.1 Quick Start Setup............................................................................................................................................................... 5
3.2 Measurements................................................................................................................................................................... 5
4 EVM Components ................................................................................................................................................................... 7
4.1 R1n, R2n, R3n, R4n, R5n, R6n, C1n, C2n, C4n, C5n....................................................................................................... 7
4.2 C3n..................................................................................................................................................................................... 7
4.3 Rs1n and Rs2n (Rshunt).................................................................................................................................................... 7
4.4 U1n (INA2191)................................................................................................................................................................... 7
4.5 S1n, S2n, S3n, S4n, S5n, S6n, S7n, S8n, S9n, SA1n, SA2n, SA3n, SA4n, SA5n, SA6n, SA7n, SA8n, SA9n................ 7
5 Schematic, PCB Layout, and Bill of Materials ...................................................................................................................... 8
5.1 Schematics......................................................................................................................................................................... 8
5.2 PCB Layout...................................................................................................................................................................... 13
5.3 Bill of Materials................................................................................................................................................................. 17
6 Revision History ................................................................................................................................................................... 20
List of Figures
Figure 5-1. INA2191EVM Schematic: Gain A1 Panel.................................................................................................................. 8
Figure 5-2. INA2191EVM Schematic: Gain A2 Panel.................................................................................................................. 9
Figure 5-3. INA2191EVM Schematic: Gain A3 Panel................................................................................................................ 10
Figure 5-4. INA2191EVM Schematic: Gain A4 Panel................................................................................................................ 11
Figure 5-5. INA2191EVM Schematic: Gain A5 Panel................................................................................................................ 12
Figure 5-6. INA2191EVM Top Overlay...................................................................................................................................... 13
Figure 5-7. INA2191EVM Bottom Overlay................................................................................................................................. 13
Figure 5-8. INA2191EVM Top Layer.......................................................................................................................................... 14
Figure 5-9. INA2191EVM Bottom Layer.................................................................................................................................... 14
Figure 5-10. INA2191EVM Top Solder...................................................................................................................................... 14
Figure 5-11. INA2191EVM Bottom Solder................................................................................................................................. 14
Figure 5-12. INA2191EVM Drill Drawing................................................................................................................................... 15
Figure 5-13. INA2191EVM Top Layer Single Panel................................................................................................................... 15
Figure 5-14. INA2191EVM Bottom Layer for Single Panel........................................................................................................ 15
Figure 5-15. INA2191EVM Top Solder for Single Panel............................................................................................................ 15
Figure 5-16. INA2191EVM Bottom Solder for Single Panel...................................................................................................... 16
Figure 5-17. INA2191EVM Drill Drawing for Single Panel......................................................................................................... 16
List of Tables
Table 1-1. INA2191 Gain Option Summary................................................................................................................................. 3
Table 1-2. INA2191EVM Kit Contents.......................................................................................................................................... 3
Table 1-3. Related Documentation.............................................................................................................................................. 3
Table 5-1. Bill of Materials.......................................................................................................................................................... 17
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2 INA2191EVM SBOU254A – JANUARY 2021 – REVISED JUNE 2021
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