A digital read/write channel with EEPR4 detection

Welland, D.R.; Phillip, S.; Leung, Ka; Tuttle, G.T.; Dupuie, S.; Holberg, D.; Jack, R.; Sooch, N.; Anderson, K.; Armstrong, A.J.; Behrens, R.T.; Bliss, W.G.; Dudley, T.; Foland, W.; Glover, N.; King, L.

doi:10.1109/isscc.1994.344643

Cited by 51 publications

(8 citation statements)

References 3 publications

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“…Below-negative-rail-to-above-positive-rail voltage-controlled transconductor Transconductors based on source degeneration use MOSFETs in the non-saturated region in order to achieve variable transconductances (Krummenacher and Joehl 1988;Kwan and Martin 1991;Welland et al 1994;Johns and Martin 1997). However, input rail-to-rail operation is not possible.…”

Section: Design Examples Using Input Signal Adaptermentioning

confidence: 99%

A low-voltage complementary metal-oxide semiconductor adapter circuit suitable for input rail-to-rail operation

Tadic¹,

Zogović²,

Banjevic³

et al. 2010

International Journal of Electronics

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In this article, a low-voltage complementary metal-oxide semiconductor (CMOS) input signal adapter (ISA) suitable for input rail-to-rail operation of various types of analogue basic building blocks is presented. The adapter acts as a pre-stage with infinite input resistance and linear transfer characteristics. Its input signal is translated into the region fitting the operating range of the following stage. The generality of the proposed method is proven through the application of the ISA in different types of analogue basic building blocks designed in 0.5 mm CMOS technology. They are the following: below-negative-rail-to-above-positive-rail voltage-controlled transconductor, quasi rail-to-rail voltage-controlled resistor (VCR), rail-to-rail operational amplifier (OA) and quasi rail-to-rail second generation current conveyor. The proposed negative resistance quasi rail-to-rail VCR and rail-to-rail OA have been used in a Sallen and Key band-pass filter. All of these analogue basic building blocks and their applications in the form of the Sallen and Key band-pass filter operate from a single supply of 1.5 V. Simulation results confirm the predictions of the analysis performed.

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Section: Design Examples Using Input Signal Adaptermentioning

confidence: 99%

A low-voltage complementary metal-oxide semiconductor adapter circuit suitable for input rail-to-rail operation

Tadic¹,

Zogović²,

Banjevic³

et al. 2010

International Journal of Electronics

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“…2(b). It is based on transconductor using a fixed-bias triode transistor [7]. Cascode current mirror is used to enhance output impedance of VCCS and gain boosting technique is also employed for further increase of output impedance.…”

Section: A Signal Generator and Vccsmentioning

confidence: 99%

Design of highly programmable bio-impedance measurement IC in 0.18μm CMOS

Cho

Yoon

Cho

2009

2009 International SoC Design Conference (ISOCC)

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In this paper, a highly programmable bioimpedance measurement system for multi-purpose health monitoring application is presented. Complex and area consuming analog components are replaced by a high resolution ADC and digital processing providing lots of flexibility to both designers and users. The prototype of the proposed system architecture is designed in 0.18μm CMOS technology. The tuning range of signal generator is from 10kHz∼10MHz and current variation of voltage-controlled current source (VCCS) is below 1%. The gain, bandwidth, CMRR and input referred noise of instrumentation amplifier (IA) are 18dB, 1.5Hz∼9.5MHz, 96.7dB at 100kHz and 10.3nV/ √ Hz, respectively. ADC is implemented using pseudodifferential VCO-based architecture. Signal-to-noise ratio (SNR), spurious-free dynamic range (SFDR) and signal-to-noise-anddistortion ratio (SNDR) of ADC are 87.5dB, 60dB and 60dB, respectively. The total power consumption of prototype is 6.7mW.

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“…The four-quadrant analog multiplier presented here has been conceived as an attempt at meeting these contrasting requirements. The basic MOS fourquadrant analog multiplier first using MOS transistors operated in the triode region, used the tunable OTA proposed by Welland et al [14] as a unity-gain buffer. In this paper a low voltage CMOS four-quadrant analog multiplier with a modified bridged-triode scheme (MBTS) is presented.…”

Section: Introductionmentioning

confidence: 99%

±0.5V ±1.5V VHF CMOS LV/LP four-quadrant analog multiplier in modified bridged-triode scheme

Jimmy

2002

Proceedings of the 2002 International Symposium on Low Power Electronics and Design - ISLPED '02

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A new LV/LP CMOS four-quadrant analog multiplier designed in a modified bridged-triode scheme (MBTS) is presented. It brings in the benefits in terms of linearity, power consumption, frequency response and total harmonic distortion (THD). The fabricated chip in TSMC 0.35µm n-well SPQM CMOS technology has a nonlinearity error less than 0.8% over ±0.5V input range under a nominal supply voltage of ±1.5V, and consumes the total power dissipation of 2.7 mW only.

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A digital read/write channel with EEPR4 detection

Cited by 51 publications

References 3 publications

A low-voltage complementary metal-oxide semiconductor adapter circuit suitable for input rail-to-rail operation

A low-voltage complementary metal-oxide semiconductor adapter circuit suitable for input rail-to-rail operation

Design of highly programmable bio-impedance measurement IC in 0.18μm CMOS

±0.5V ±1.5V VHF CMOS LV/LP four-quadrant analog multiplier in modified bridged-triode scheme

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A digital read/write channel with EEPR4 detection

Cited by 51 publications

References 3 publications

A low-voltage complementary metal-oxide semiconductor adapter circuit suitable for input rail-to-rail operation

A low-voltage complementary metal-oxide semiconductor adapter circuit suitable for input rail-to-rail operation

Design of highly programmable bio-impedance measurement IC in 0.18&#x03BC;m CMOS

±0.5V ±1.5V VHF CMOS LV/LP four-quadrant analog multiplier in modified bridged-triode scheme

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Design of highly programmable bio-impedance measurement IC in 0.18μm CMOS