BLK_DiffOTAIdeal : An ideal differential operational transconductance amplifier (OTA)
A differential operational transconductance amplifier (OTA) produces a differential output current that is proportional to the differential input voltage.
This OTA model describes an ideal differential OTA, with a linear transconductance (Gm_diff
), output resistance (Rout
), and output capacitance (Cout
). The voltage at the input cm
sets the common-mode output level. The OTA model is described using the circuit primitives, such as vccs
, and resistor
primitives.
Input/Output Terminals
Name | I/O | Type | Description |
outn | input | xreal | output (neg) |
outp | input | xreal | output (pos) |
cm | input | xreal | common mode |
inn | input | xreal | input (neg) |
inp | input | xreal | input (pos) |
Parameters
Name | Type | Default | Description |
Gm_diff | real | 10.0m | transconductance (diff-to-diff) |
Rout | real | 5K | output resistance |
Cout | real | 0.0 | output capacitance |