The Miller integrator

** Circuit Description **
* signal sources 
Vi 3 0 PWL (0 0V 1ms 0V 1.001ms 1mV 2s 1mV)
* components of the Miller integrator
R1 2 3 1k
C2 2 1 10uF
Eopamp 1 0 0 2 1e6
** Analysis Requests **
.TRAN 100ms 2s 0ms 100ms
** Output Requests
.PLOT TRAN V(1)
.probe
.end
The Damped Miller integrator (R=1M)

** Circuit Description **
* signal sources 
Vi 3 0 PWL (0 0V 1ms 0V 1.001ms 1mV 2s 1mV)
* components of the Miller integrator
R1 2 3 1k
R2 1 2 1Meg
C2 2 1 10uF
Eopamp 1 0 0 2 1e6
** Analysis Requests **
.TRAN 100ms 2s 0ms 100ms
** Output Requests
.PLOT TRAN V(1)
.probe
.end
The Damped Miller integrator (R=100k)

** Circuit Description **
* signal sources 
Vi 3 0 PWL (0 0V 1ms 0V 1.001ms 1mV 2s 1mV)
* components of the Miller integrator
R1 2 3 1k
R2 1 2 100k
C2 2 1 10uF
Eopamp 1 0 0 2 1e6
** Analysis Requests **
.TRAN 100ms 2s 0ms 100ms
** Output Requests
.PLOT TRAN V(1)
.probe
.end