SBOS914F October 2018 – April 2021 INA592
PRODUCTION DATA
Figure 9-1 shows the basic connections required for operation of the INA592. Connect power supply bypass capacitors close to the device pins.
The differential input signal is connected to pins 2 and 3 as shown. The source impedances connected to the inputs must be nearly equal to provide good common-mode rejection. An 8-Ω mismatch in source impedance degrades the common-mode rejection of a typical device to approximately 80 dB. Gain accuracy is also slightly affected. If the source has a known impedance mismatch, use an additional resistor in series with one input to preserve good common-mode rejection.