All Pass Network Based MSO Using OTRA

Table 1

Detailed comparison of available MSOs.

Reference	ABB	Phase shift network	Output	Output impedance	Tunability
[2]	CCCDTA	APN	Current	High	Yes
[5]	Op-amp	LPN	Voltage	Low	No
[6]	Op-amp	LPN	Voltage	Low	No
[7]	Op-amp	LPN	Voltage	Low	Yes
[8]	Op-amp	APN	Voltage	Yes	Yes
[9]	CFOA	LPN	Voltage	No	Yes
[10]	OTA	LPN	Voltage	High	Yes
[11]	OTA	LPN	Voltage	High	Yes
[12]	CCII	LPN	Voltage	High	Yes
[13]	CCII	LPN	Voltage	High	Yes
[14]	CCII	LPN	Voltage	High	No
[15]	CCII	LPN	Voltage	High	Yes
[16]	OTRA	LPN	Voltage	Low	Yes
[17]	Current follower	LPN	Current	High	Yes
[18]	CCII	LPN	Current	High	Yes
[19]	CCII	LPN	Current	High	Yes
[20]	CCII	LPN	Current	High	Yes
[21]	CDTA	LPN	Current	High	Yes
[22]	CDTA	APN	Current	High	Yes
[23]	CDTA	APN	Current	High	Yes
[24]	CC	LPN	Current	High	Yes
[25]	CFTA	LPN	Current	High	Yes
Proposed work	OTRA	APN	Voltage	Low	Yes