Ultra-Low-Voltage Low-Power Bulk-Driven Quasi-Floating-Gate Operational Transconductance Amplifier

Table 2

BD-QFG OTA performance benchmark indicators.

Parameters	This work	Koziel and Szczepanski [33]	Majumdar [34]	Li and Raut [35]	Zhang et al. [36]
CMOS technology
[m]	0.18	0.5	0.35	0.35	0.18
Power supply
[V]	±0.3	±2.5	3.3	3.3	1.8
Power consumption
[μW]	13.4	6800	3370	2330	590
Transistors number
[/]	12	37	14	22	68
AC gain
[dB]	51	65	80.4	65	55
Linearity range
[mV]	±0.3	±0.75	±0.1	/	±0.27
Output resistance
[MΩ]	0.317	3.4	/	1.2	8.3
−3 dB bandwidth
[MHz]	59	100	123.2	100	200