Research Article
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 |
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