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