5 EVM Components
This section summarizes the INA296EVM components. For these instructions, n is gain option 1, 2, 3, 4, or 5.
5.1 R1_n, R2_n, R3_n, C2_n, C5_n
R1_n, R2_n, and R3_n are factory-installed 0-Ω 0603 resistors.
C2_n and C5_n, are not populated.
Collectively, these pads allow user-defined filters for the input pins (IN+ and IN–) and the output pin (OUT) of the
INA241. If a filter is desired, remove these resistors and replace them with > 0-Ω SMT resistors and populate the
capacitor pads with capacitors. Consider the input bias current of the device when using input filtering.
5.2 C1_n
C1_n is a 0.1-µF, power-supply bypass capacitor.
5.3 R4_n
R4_n is unpopulated, but allows the user to solder down a surface-mount shunt resistor between the In+ and In–
pads sensed by IN+ and IN– input pins. If used, make sure R4_n has proper power dissipation for the selected
current load. The chosen resistor must have a 2512 footprint.
5.4 U1_n (INA296x)
U1_n is the location for the INA296An test device.
Consider these factors when selecting the appropriate device gain:
• The differential input voltage is either applied across the inputs or developed based on the load current that
flows through the shunt resistor.
• Make sure that the output voltage does not exceed the supply voltage. This limiting factor requires attention
to device selection.
• The selected device must allow the output voltage to remain within the acceptable range after the developed
input voltage is amplified by the respective device gain. The output voltage must remain within the device-
specified swing limitations for response in the linear range.
• An output below the minimum allowable output requires a device with a higher gain. Likewise, an output
above the maximum allowable output requires a device with a lower gain.
EVM Components
INA296EVM
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