## 3.7 `G`: Voltage Controlled Current Source

### 3.7.1 Syntax

`G` xxxxxxx n+ n– nc+ nc– value
`G` xxxxxxx n+ n– nc+ nc– expression
`.VCCS` label n+ n– nc+ nc– expression

### 3.7.2 Purpose

Voltage controlled current source, or transconductance block.

### 3.7.3 Comments

N+ and n– are the positive and negative element (output) nodes, respectively. Current flow is from the positive node, through the source, to the negative node. Nc+ and nc– are the positive and negative controlling nodes, respectively. Value is the transconductance in mhos.
The letter G can also be used to select the `vccap`, `vcr`, and `vcg` devices using a syntax compatible with some other simulators.