The TLV3602EVM is able to support external hysteresis for each TLV3602 non-inverting input. When configuring the EVM for hysteresis, the non-inverting input signal should now be connected to the INA+SENSE SMA connector. The reason for this is hysteresis requires both a series input resistor and a feedback resistor from output to input. There is no series resistance on the INA+ SMA connector. For this reason, the INA+SENSE series resistor, R7, will act as the input resistor.

The feedback resistor for hysteresis on channel A will be the combination of R11 and R13. Both resistors must be populated. When measuring the INA+ input signal on an oscilloscope, we recommend using a dual channel function generator so that one of its outputs can be directly connected to the oscilloscope. Ensure that both signal generator channels are outputting the same signal.

For non-inverting hysteresis on Channel B, the INB+SENSE SMA connection will serve as the input to the device. The input resistor will be series resistor R8. The feedback resistor for hysteresis on channel B will be the combination of R9 and R10. Both resistors must be populated. When measuring the INB+ input signal on an oscilloscope, we recommend following the same recommendations as Channel A.