Table of Contents
1 Overview..................................................................................................................................................................................3
1.1 Related Documentation......................................................................................................................................................3
1.2 Electrostatic Discharge Caution......................................................................................................................................... 3
1.3 Hot Surface Warning..........................................................................................................................................................3
2 EVM Circuit Description.........................................................................................................................................................4
3 Jumper Settings......................................................................................................................................................................5
4 Power-Supply Connections................................................................................................................................................... 6
5 Analog Input and Output Connections.................................................................................................................................8
6 Digital Input Pins and Gain Control...................................................................................................................................... 9
7 Modifications.........................................................................................................................................................................10
8 Schematic, PCB Layout, and Bill of Materials................................................................................................................... 10
8.1 Schematic........................................................................................................................................................................ 10
8.2 PCB Layout...................................................................................................................................................................... 10
8.3 Bill of Materials.................................................................................................................................................................16
List of Figures
Figure 2-1. PGA855EVM Simplified Schematic...........................................................................................................................4
Figure 3-1. PGA855EVM Default Jumper Settings......................................................................................................................5
Figure 4-1. PGA855EVM Voltage Supply Connections...............................................................................................................7
Figure 5-1. PGA855EVM Analog Input and Output Connections................................................................................................ 8
Figure 6-1. PGA855EVM Gain Control........................................................................................................................................9
Figure 8-1. PGA855EVM Schematic......................................................................................................................................... 10
Figure 8-2. Top Overlay PCB Layout......................................................................................................................................... 11
Figure 8-3. Top Layer PCB Layout............................................................................................................................................ 12
Figure 8-4. Ground Layer PCB Layout...................................................................................................................................... 13
Figure 8-5. Power Layer PCB Layout........................................................................................................................................ 14
Figure 8-6. Bottom Layer PCB Layout.......................................................................................................................................15
List of Tables
Table 1-1. Related Documentation.............................................................................................................................................. 3
Table 3-1. Default Jumper Configuration..................................................................................................................................... 5
Table 4-1. PGA855EVM Supply-Range Specifications................................................................................................................6
Table 5-1. PGA855EVM Analog Input and Output Connections..................................................................................................8
Table 6-1. PGA855EVM Gain Control......................................................................................................................................... 9
Table 8-1. PGA855EVM Bill of Materials................................................................................................................................... 16
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2PGA855 Evaluation Module SBOU296 – APRIL 2023
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