Field programmable Gm-C array for wide frequency range bandpass filter applications

Lebel, Eric; Assi, Ali

doi:10.1109/iscas.2005.1464996

Cited by 10 publications

(4 citation statements)

References 9 publications

(12 reference statements)

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“…The factor responsible for degrading the FPAAs frequency response was the interconnecting network. This method can be achieved by connecting the CAB biasing current sources to the voltage supplies via switches [6,14]. However, the parasitic capacitance in the signal path was Figure 5.…”

Section: Proposed Dpccii-based Fpaamentioning

confidence: 99%

“…Thus, some designs eliminated the use of interconnection network by using CABs that can be turned on/off. This method can be achieved by connecting the CAB biasing current sources to the voltage supplies via switches [6,14]. However, the power consumption of the FPAA was not fixed, and to realize programmable applications, the CABs had to be designed using programmable active circuits.…”

Section: Proposed Dpccii-based Fpaamentioning

confidence: 99%

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Digitally programmable second generation current conveyor‐based FPAA

Mahmoud

Soliman

2012

Circuit Theory & Apps

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A novel fully differential digitally programmable current conveyor (DPCCII) is presented in this paper. The programmability of the proposed DPCCII is achieved using three-bit MOS R-2R ladder current division network. The DPCCII is used to realize a field programmable analog array (FPAA). The FPAA consists of seven configurable analog blocks arranged in a hexagonal form. The FPAA power consumption is 72.3 mW from 1 V voltage supply. A second-order programmable universal filter is realized using the proposed FPAA as an application. All the circuits are realized and simulated using 90 nm IBM CMOS technology model under balanced supply voltage of AE0.5 V.Thus, the filter cutoff frequency and quality factor can be tuned using a o and a Q, respectively. The filter is mapped on the FPAA such that 'A1, B6, A4, D5 and D4' are the DPCCIIs used and they are programmed using a 1 , a 2 , a 3 , a 4 and a 5 , respectively, as shown in Figure 10. The filter is simulated Figure 9. DPCCII-based second-order tunable universal filter.

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Section: Proposed Dpccii-based Fpaamentioning

confidence: 99%

Section: Proposed Dpccii-based Fpaamentioning

confidence: 99%

Digitally programmable second generation current conveyor‐based FPAA

Mahmoud

Soliman

2012

Circuit Theory & Apps

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“…The interconnection between CABs occupies nearly 60 % of the area. FPAAs based on OTA-C technique are promising for high frequency operation [16,[18][19][20], because of programmable transconductance of OTAs. The FPAAs presented in [7,21,22] consist of CABs based on current conveyors (CCII).…”

Section: Introductionmentioning

confidence: 99%

A wideband linear tunable CDTA and its application in field programmable analogue array

Wang

Sun

et al. 2016

Analog Integr Circ Sig Process

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This document is the Accepted Manuscript version of the following article: Hu, Z., Wang, C., Sun, J. et al. ???A wideband linear tunable CDTA and its application in field programmable analogue array???, Analog Integrated Circuits and Signal Processing, Vol. 88 (3): 465-483, September 2016. Under embargo. Embargo end date: 6 June 2017. The final publication is available at Springer via https://link.springer.com/article/10.1007%2Fs10470-016-0772-7 ?? Springer Science+Business Media New York 2016In this paper, a NMOS-based wideband low power and linear tunable transconductance current differencing transconductance amplifier (CDTA) is presented. Based on the NMOS CDTA, a novel simple and easily reconfigurable configurable analogue block (CAB) is designed. Moreover, using the novel CAB, a simple and versatile butterfly-shaped FPAA structure is introduced. The FPAA consists of six identical CABs, and it could realize six order current-mode low pass filter, second order current-mode universal filter, current-mode quadrature oscillator, current-mode multi-phase oscillator and current-mode multiplier for analog signal processing. The Cadence IC Design Tools 5.1.41 post-layout simulation and measurement results are included to confirm the theory

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“…Transconductor blocks connected in parallel are activated and deactivated by controlling their power supply [12]. This technique has been used also in realizing a programmable current amplifier [3].…”

Section: Introductionmentioning

confidence: 99%

Programmable monolithic Gm-C band-pass filter: design and experimental results

Lebel

Assi

2007

Analog Integr Circ Sig Process

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We propose in this paper a programmable bandpass filter based on an array of fully differential transconductance circuits that controls the filter parameters. The signal path does not contain any switch, and fine-tuning of the filter parameters is implemented using programmable capacitors. A digital building block is implemented in the proposed band-pass filter to tune its central frequency as well as its bandwidth. The filter circuit is based on a biquad topology, which is designed and implemented with CMOS 0.18 lm technology. Experimental results show a programming ability of the center frequency between 5.9 and 58 MHz, and the quality factor can be tuned from 0.36 to 10. These features are obtained for a total power consumption of less than 10.5 mW from a single 1.8 V power supply.

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Field programmable Gm-C array for wide frequency range bandpass filter applications

Cited by 10 publications

References 9 publications

Digitally programmable second generation current conveyor‐based FPAA

Digitally programmable second generation current conveyor‐based FPAA

A wideband linear tunable CDTA and its application in field programmable analogue array

Programmable monolithic Gm-C band-pass filter: design and experimental results

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