Texas Instruments INA301EVM, User Manual, Page: 5 / 15

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Schematic, PCB Layout, and Bill of Materials
3 Schematic, PCB Layout, and Bill of Materials
3.1 Schematic
Figure 2 shows the complete schematic of the INA301 test board. R3 sets up the voltage threshold of the
comparator. R1 is a pullup resistor for the open-drain comparator output pin. D1 is connected to the
comparator output pin, and is a visual indicator of an alert condition. D1 can be disabled by disconnecting
jumper J2. Use jumper J1 to configure the comparator mode. Install J1 at position 3-2 for transparent
mode comparison output and at position 2-1 for latched mode comparison output. C1 is a bypass
capacitor for VS. C2 along with R4 and R5 creates an optional filter for the VIN+ and VIN– inputs. R6 is
an optional shunt resistor for the INA input.
Figure 2. INA301EVM Test Board Schematic
5 SBOU154 – November 2015 INA301EVM User's Guide
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