Auxiliary cells, similar to standard cells in digital design, are one of the building blocks for the analog generators. They have simple analog functionality usually associated with the structure of the auxiliary cell. Since the structure and the functionality of the auxiliary cells do not change with technology node, they can be easily ported from one process design kit to another. Below is a list of auxiliary cells used for various analog block generations:
|
Auxiliary Cell |
Schematic |
Analog Block Generation Usage |
|
Differential switched capacitor |  |
AD-PLL |
|
Fully Differential Tri-State Buffer |  |
AD-PLL |
|
Unit Power Switch |  |
DLDO |
|
2:1 SC Cell |  |
DC/DC Converter |
|
Edge Pursuit Comparator |  |
ADC |
|
Bootstrap Switch |  |
ADC |
|
Unit Cap Cell |  |
ADC |
|
Pre-Charge Switch |  |
CDC |
|
Level Converter with multiple power lines |  |
CDC |
|
INV with multiple power lines |  |
CDC/Thermal Sensor |
|
NAND2 with multiple power lines |  |
CDC/Thermal Sensor |
|
BUF with multiple power lines |  |
CDC/Thermal Sensor |
|
Header Cell |  |
Thermal Sensor |
|
Column Mux |  |
Memory Macro |
|
Pre-Charge Circuit |  |
Memory Macro |
|
Pre-Decoder |  |
Memory Macro |
|
Row/Column Decoder |  |
Memory Macro |
|
Sense Amplifier |  |
Memory Macro |
|
WL Driver |  |
Memory Macro |
|
Write Driver |  |
Memory Macro |