SBAU461 May 2024 INA790B , INA791B
The INA790x features default gain 20mV/A. With an external adjustable gain resistor network, total gain (G) can range up to 400mV/A. Position 5 though 10 of header J3 allows the user to customize the adjustable gain, with two shorting jumpers B and C as shown in Figure 4-1. Configuration options provided by the EVM are shown in Table 3-1:
J3 Positions of Jumpers B and C | Output Amplifier Gain (V/V) | System Gain (mV/A) |
---|---|---|
B removed; C at #6 | 1 | 20 |
B installed; C at #7 | 2 | 40 |
B installed; C at #8 | 3 | 60 |
B installed; C at #9 | 4 | 80 |
B installed; C at #10 | 5 | 100 |