A field-programmable analog array using translinear elements

Abramson, David; Gray, J.; Subramanian, S.; Hasler, P.

doi:10.1109/iwsoc.2005.8

Cited by 11 publications

(5 citation statements)

References 7 publications

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“…The use of translinear circuits as the universal analog block to reduce the tradeoff between flexibility and abstraction level has been gaining a lot of recent attention [9]- [11]. Using translinear circuits for which known network synthesis procedures exist [12], [13], it is possible to build a system in which the only input necessary is the set of equations that describe the system to be implemented.…”

Section: A Questions Of Analog Reconfigurabilitymentioning

confidence: 99%

“…The chain rule can be applied to the derivative of the current giving (9) where is the log compressed voltage associated with . Taking the derivative of the current through the 2-input MITE with respect to a single controlling voltage results in (10) where is the weight of the controlling voltage .…”

Section: A Building Blocks Of Mite Systemsmentioning

confidence: 99%

“…This results in a system which is a vast advancement over the Reconfigurable Analog Array of MITEs [9] by using a more computationally efficient MITE element, incorporating a more complex routing scheme in order to reduce the parasitic capacitance of the switch matrixes, and utilizing on-chip programming [16].…”

Section: Reconfigurable Architecturementioning

confidence: 99%

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A MITE-Based Translinear FPAA

Schlottmann

Abramson

Hasler

2012

IEEE Trans. VLSI Syst.

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While the development of reconfigurable analog platforms is a blossoming field, the tradeoff between usability and flexibility continues to be a major barrier. Field Programmable Analog Arrays (FPAAs) built with translinear elements offer a promising solution to this problem. These FPAAs can be built to use previously developed synthesis procedures for translinear circuits. Furthermore, large-scale translinear FPAAs can be built using floating-gate transistors as both the computational elements and the reconfigurable interconnect network. An FPAA built using Multiple Input Translinear Elements (MITEs) has been designed, fabricated in 0.35 m CMOS, and tested. These devices have been programmed to implement various circuits including multipliers, squaring circuits, RMS-to-DC converters, and filters. In addition, synthesis, place-and-route, and programming tools have been created in order to implement a reconfigurable system where the circuits implemented are described only by equations. The continued development of translinear FPAAs will lead to a reconfigurable analog system that allows for a large portion of the design to be abstracted away from the user.

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Section: A Questions Of Analog Reconfigurabilitymentioning

confidence: 99%

Section: A Building Blocks Of Mite Systemsmentioning

confidence: 99%

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A MITE-Based Translinear FPAA

Schlottmann

Abramson

Hasler

2012

IEEE Trans. VLSI Syst.

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“…The continuous time class of reconfigurable circuits contains devices based on Operational Transconductance Amplifiers (OTA) [1]- [3], current conveyors [4], [5] and also a wide class of so called Externally Linear (ELIN) circuits -e.g. log domain [6], [7], square root domain and others. The discrete time circuits are mainly based on the Switched Capacitance (SC) principle [8]- [11] or Switched Current (SI) principle [12].…”

Section: Introductionmentioning

confidence: 99%

Analog Reconfigurable Circuits

Malcher¹,

Falkowski²

2014

International Journal of Electronics and Telecommunications

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Abstract-The aim of this paper is to present an overview of a new branch of analog electronics represented by analog reconfigurable circuits. The reconfiguration of analog circuits has been known and used since the beginnings of electronics, but the universal reconfigurable circuits called Field Programmable Analog Arrays (FPAA) have been developed over the last two decades. This paper presents the classification of analog circuit reconfiguration, examples of FPAA solutions obtained as academic projects and commercially available ones, as well as some application examples of the dynamic reconfiguration of FPAA.

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“…Continuoustime devices can be implemented by means of translinear elements [1,2], transconductors [3], current integrators [4] or current conveyors [5], while discrete-time implementations may use switched capacitor topologies [6,7] or switched current circuits. The FPAAs can be configured for applications such as filtering [8], neural networks [9], industrial control [10], signal processing [11], V-F converters and aerospace communications [12], among others.…”

Section: Introductionmentioning

confidence: 99%

Translinear signal processing circuits in standard CMOS FPAA

Martínez-Alvarado

Madrenas

Fernandez

2009

2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009)

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Abstract-In this paper, the implementation of signal processing circuits on a novel translinear Field-Programmable Analog Array (FPAA) testchip is reported. The FPAA testchip is based on a 0.35-micron, fully CMOS translinear element, which is the core block of a reconfigurable analog cell. The FPAA embeds a 5 × × × 5 cell array. As implementation examples, a four-quadrant multiplier with five decade dynamic range and a programmable fourth-order low-pass filter with up to 7 M Hz bandwidth have been mapped on the translinear FPAA. 14 cells have been used for the four-quadrant multiplier while 18 cells were needed for the fourth-order low-pass filter.

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A field-programmable analog array using translinear elements

Cited by 11 publications

References 7 publications

A MITE-Based Translinear FPAA

A MITE-Based Translinear FPAA

Analog Reconfigurable Circuits

Translinear signal processing circuits in standard CMOS FPAA

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