I have problem in using dynamic SPDT switch in ADS simulation, it break before make cause zero output at a specific voltage.how can i avoid this ?

Switch Parameters:

Ron On-state resistance of switch 0 Ohm

Roff Off-state resistance of switch 1GOhm

Range of Usage:

Pin 1 is the input, pins 2 and 3 are output, pin 4 is the control voltage, Vc.

If Vc > 2V, R1 = Ron, R2 = Roff

If Vc < 1v, R1 = Roff, R2 = Ron

When Vc increases from 1V to 1.5V, R2 changes from Ron to Roff

When Vc increases from 1.5V to 2V, R2 = Roff and R1 changes from Roff to Ron

At Vc = 1.5V, R1 = R2 = Roff

This SPDT_Dynamic switch model, as opposed to the SPDT_Static model, can be used to dynamically switch states in response to the input control voltage. The input impedance of the control voltage port is infinite. Whenever the control voltage is greater than 2.0V, the input is connected to the (c>2) output with a resistance equal to Ron; otherwise, there is a resistance of Roff Ohm between the two pins. Similarly, whenever the control voltage is less than 1.0V, the input is connected to the (c