Page tree
Skip to end of metadata
Go to start of metadata



IntegratorSML (Integrator)

Symbol

Available in ADS

Parameters

Name

Description

Units

Default

GainAC

Integrator gain

None

1

GainDC

Gain of DC constant

None

1.e6

Rref

Reference resistance for both ports

Ohm

50

Notes/Equations
  1. The output voltage is equal to the integral (with respect to time) of the input voltage. This device has been modeled after a physically realizable integrator. The dc gain is not infinite and is specified by GainDC.
  2. GainAC is the ac gain of the integrator (typically set to 1.0); GainDC is the dc gain of the integrator. Both of these are a linear quantity, not in dB.
  3. An ideal integrator has infinite gain at dc, which is not physically realizable. These parameters describe the operation of the integrator that has been modeled after a traditional high gain differential amplifier with capacitive feedback and a series input resistor. GainDC is the open loop dc gain of the amplifier in this model. Gain is equal to 1/RC where R is the input series resistor value in Ohm and C is the feedback capacitor value in farads.
  4. The integrator transfer function follows:

    where w is the frequency in radians/sec.
  5. IntegratorSML works in both transient and envelope simulations.
  6. The input resistance of the integrator is Rref. The output is a voltage source Vout in series with output resistance Rref.
  • No labels