Controllable integrator (F007) circuit diagram

As shown in the figure is a controllable integrating circuit . This circuit has a controllable integrator with reset, hold, and different integration time constants . The analog switch is CH300 and the operational amplifier is F007. The values ​​of R, C1 and C2 in the figure can be configured as needed. The different control states of the four analog switches enable the circuit to complete different functions. The relationship between the status and functions of control terminals A, B, C, and D is as shown in the table.