GainSwitch
A voltage-controlled SPDT switch with independent gain for each branch.
Parameters
gain_input1
gain_input2
Options
compare_to \( \in \{ \)
GROUND
\( , \)
SECOND_INPUT
\( , \)
VARIABLE_REFERENCE
\( \} \)
control_signal_polarity \( \in \{ \)
ACTIVE_HIGH
\( , \)
ACTIVE_LOW
\( \} \)
comparator_input_phase \( \in \{ \)
PHASE1
\( , \)
PHASE2
\( \} \)
opamp_mode \( \in \{ \)
DEFAULT
\( , \)
CHOPPER_STABILIZED
\( \} \)
Inputs
input1
Half-Cycle
input2
Half-Cycle
control
Half-Cycle
Outputs
output
Half-Cycle
select
Continuous
Transfer Function
$$
V_{out} =
\begin{cases}
\pm G \cdot V_{in1} & \text{if $\> V_{ctrl} > V_{ref}$} \\
\pm G \cdot V_{in2} & \text{if $\> V_{ctrl} < V_{ref}$} \\
\end{cases}
$$
Analog Resource Usage
$$
\begin{array}{|c|c|}
\hline
\text{Opamps} & \text{1 of 8} \\
\hline
\text{Comparators} & \text{1 of 4} \\
\hline
\text{Capacitors} & \text{3 of 32} \\
\hline
\end{array}
$$