how to implement sp1t,sp2t,sp3t switch

Dear eashwar,

Are you in the cadence environment?. This is the result of the command:

************
Ideal Switch
************

Ideal switch is a single-pole multiple-throw switch with infinite `off' resistance and zero `on' resistance. The switch is
provided to allow you to reconfigure your circuit between analyses. You can only change the switch state between analyses
(using the alter statement), not during an analysis.

When the switch is set to position 0 it is open. In other words, no terminal is connected to any other. When the switch is
set to position 1, terminal 1 is connected to terminal 0, and all others are unconnected. When the position is set to 2,
terminal 2 is connected to terminal 0, etc.

An offset voltage is supported. It is placed in series with the common terminal. The negative side of the source is
connected to the common terminal.

The switch can change its position based on which analysis type is being performed using the `xxx_position' parameters.
This feature should be used carefully. Careless use can generate discontinuities that result in convergence problems. Once
an analysis specific position has been specified using `xxx_position', it will always dominate over a position given with
the `position' parameter. To disable an analysis specific position, alter it to its default value of unspecified.

Sample Instance Statement:
sw1 (t1 t2 t3) switch dc_position=0 ac_position=1 tran_position=2

This device is not supported within altergroup.

Synopsis:
Name ( t0 t1 ... ) switch <parameter=value> ...

===================
Instance Parameters
===================

1 position=0 Switch position (0, 1, 2, ...).
2 dc_position Position to which switch is set at start of DC analysis.
3 ac_position Position to which switch is set at start of AC analysis.
4 tran_position Position to which switch is set at start of transient analysis.
5 ic_position Position to which switch is set at start of IC analysis (precedes transient analysis).
6 offset=0 Offset voltage in series with common terminal.
7 m=1.0 Multiplicity factor.

=================
Output Parameters
=================

1 present_position Current switch position.

===============
Parameter Index
===============

ac_position ........... I-3 ic_position ........... I-5 offset ................ I-6 present_position ...... O-1
dc_position ........... I-2 m ..................... I-7 position .............. I-1 tran_position ......... I-4

Shawn

Dear eashwar,

Are you in the cadence environment?. This is the result of the command:

************
Ideal Switch
************

Ideal switch is a single-pole multiple-throw switch with infinite `off' resistance and zero `on' resistance. The switch is
provided to allow you to reconfigure your circuit between analyses. You can only change the switch state between analyses
(using the alter statement), not during an analysis.

When the switch is set to position 0 it is open. In other words, no terminal is connected to any other. When the switch is
set to position 1, terminal 1 is connected to terminal 0, and all others are unconnected. When the position is set to 2,
terminal 2 is connected to terminal 0, etc.

An offset voltage is supported. It is placed in series with the common terminal. The negative side of the source is
connected to the common terminal.

The switch can change its position based on which analysis type is being performed using the `xxx_position' parameters.
This feature should be used carefully. Careless use can generate discontinuities that result in convergence problems. Once
an analysis specific position has been specified using `xxx_position', it will always dominate over a position given with
the `position' parameter. To disable an analysis specific position, alter it to its default value of unspecified.

Sample Instance Statement:
sw1 (t1 t2 t3) switch dc_position=0 ac_position=1 tran_position=2

This device is not supported within altergroup.

Synopsis:
Name ( t0 t1 ... ) switch <parameter=value> ...

===================
Instance Parameters
===================

1 position=0 Switch position (0, 1, 2, ...).
2 dc_position Position to which switch is set at start of DC analysis.
3 ac_position Position to which switch is set at start of AC analysis.
4 tran_position Position to which switch is set at start of transient analysis.
5 ic_position Position to which switch is set at start of IC analysis (precedes transient analysis).
6 offset=0 Offset voltage in series with common terminal.
7 m=1.0 Multiplicity factor.

=================
Output Parameters
=================

1 present_position Current switch position.

===============
Parameter Index
===============

ac_position ........... I-3 ic_position ........... I-5 offset ................ I-6 present_position ...... O-1
dc_position ........... I-2 m ..................... I-7 position .............. I-1 tran_position ......... I-4

Shawn