A. Tonk, N. Afzal. Second generation fully differential current conveyor based analog circuits[J]. Journal of Semiconductors, 2019, 40(4): 042401
- Journal of Semiconductors
- Vol. 40, Issue 4, 042401 (2019)
Fig. 1. (a) Matrix representation of FDCCII. (b) Symbol for FDCCII.
Fig. 2. CMOS FDCCII implementation.
Fig. 3. (Color online) (a) DC voltage characteristics of differential X terminal. (b) DC current response of differential Z terminal.
Fig. 4. Second order Filter realized using CMOS FDCCII (LP/BP response).
Fig. 5. LPF gain tuning (f o = 13 kHz) through R 1.
Fig. 6. BPF gain tuning (f o = 13 kHz & Q = 4.08) through R 1.
Fig. 7. At constant central frequency of 13 kHz, Q values varying with R 2 are 3.3, 4.9 & 6.5 respectively.
Fig. 8. (a) Current division circuit (CDC). (b) Matrix representation of DCFDCCII. (c) Symbol of DCFDCCII.
Fig. 9. (Color online) DC response of Z terminals current of DCFDCCII.
Fig. 10. DCFDCCII based programmable integrator and differentiator.
Fig. 11. Observed output for codeword (a) 111111, (b) 010101.
Fig. 12. (Color online) Differentiator input & observed output for code words.
Fig. 13. (Color online) Input (inoise) and output (onoise) referred noise spectral density for (a) integrator, (b) differentiator.
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Table 1. Main features of FDCCII.
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Table 2. Aspect ratios of MOS transistors.
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Table 3. Summarized performance of proposed filter.
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Table 4. Comparative study of previously reported differential second order filters.
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Table 5. Summarized performance of proposed DCFDCCII applications.
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