A high-performance monolithic IF amplifier incorporating electronic gain control

Davis, William F.; Solomon, J.

doi:10.1109/jssc.1968.1049932

Cited by 29 publications

(14 citation statements)

References 8 publications

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“…5. We have chosen the current-splitting gain-control technique because of its simplicity and digital control capability [10] [11]. It adds a parallel extra transconductance transistor (M 3 ) with a cascode pair (M 4 , M 5 ) acting as current switches.…”

Section: Discussionmentioning

confidence: 99%

Analysis of process variations' impact on a 2.4 GHz 90 nm CMOS LNA

González

Cruz

Vazquez

et al. 2013

2013 IEEE 4th Latin American Symposium on Circuits and Systems (LASCAS)

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Section: Discussionmentioning

confidence: 99%

Analysis of process variations' impact on a 2.4 GHz 90 nm CMOS LNA

González

Cruz

Vazquez

et al. 2013

2013 IEEE 4th Latin American Symposium on Circuits and Systems (LASCAS)

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“…• The gain peaking and the resulting GBW enhancement is achieved by choosing a smaller (zero frequency) and positioning it within the PGA's passband (5) • Meanwhile, the group-delay variation increases as the gain peaking is increased. In the proposed design, group-delay variation is compromised by the GBW enhancement and a detailed analysis is provided in Section IV.…”

Section: Interconnect Network Stage and Bandwidth Enhancementmentioning

confidence: 99%

A 35-mW 30-dB Gain Control Range Current Mode Linear-in-Decibel Programmable Gain Amplifier With Bandwidth Enhancement

Kumar

Yeo

et al. 2014

IEEE Trans. Microwave Theory Techn.

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This paper presents the design of a programmable gain amplifier (PGA) that serves as an interface between the receiver front-end and the baseband processor. The proposed PGA design is fabricated in a commercial 0.18-m SiGe BiCMOS process with a topology consisting of two digitally variable gain amplifiers cascaded by a post amplifier and interconnected by differential wideband matching networks that presents an overall enhanced gain bandwidth product. By using the current mode exponential gain control technique, the proposed design achieves a broad 30-dB linear-in-decibel gain range, a gain-independent output 1-dB compression point better than 10 dBm, input/output return loss better than 13 dB, a 0.75-dB gain flatness over a multi-decade frequency range from 2.5 MHz to 1.17 GHz, a measured in-band group-delay variation of 30 ps, a 35-mW power consumption, and a 0.25-mm core die area.Index Terms-Bandwidth enhancement technique, commonmode feedback (CMFB), current mode design, dB linearity, dc offset cancellation (DCOC), digital gain control, digital variable gain amplifier (DVGA), exponential current converter, interconnect network, linear-in-decibel gain control, linearizer, low power design, programmable gain amplifier (PGA), SiGe BiCMOS, variable gain amplifier (VGA).

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“…The AGC feedback amplifier stage consists of a double differential current divider driven by the buffer amplifier [6]. The circuit function is shown in Figure 5.…”

Section: Receiver Ic Designmentioning

confidence: 99%

“…The package design is similar to that for the 24-pin dual-in-line IC for easy installation on PWBs. Tx and Rx housings are made of steel, which acts as magnetic shielding to eliminate electromagnetic noise [6]. Figure 1 shows the optical transmitter block diagram.…”

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confidence: 99%

Integrated optical fiber data link transmitter/receiver for local area network application

Uda¹,

Suzuki²,

Kashiwagi³

1985

Fiber and Integrated Optics

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Optical fiber data link transmitters and receivers have been developed for local area network applications. The features are of wide-bit-rate range and wide dynamic range as well as compact and of highly reliable construction. State-of-theart LSI technology has been applied for the circuit electronics integration. Design emphasis was also placed on the optical connector development for ease of operation as well as reliable connection and compact size.The data link transmitter and receiver developed utilize an AlGaAs light-emitting diode and a Si PIN photodiode as the light source and detector, respectively. Performance data were obtained for a bit rate range of dc to 35 Mbps and an 18-dB dynamic range.

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A high-performance monolithic IF amplifier incorporating electronic gain control

Cited by 29 publications

References 8 publications

Analysis of process variations' impact on a 2.4 GHz 90 nm CMOS LNA

Analysis of process variations' impact on a 2.4 GHz 90 nm CMOS LNA

A 35-mW 30-dB Gain Control Range Current Mode Linear-in-Decibel Programmable Gain Amplifier With Bandwidth Enhancement

Integrated optical fiber data link transmitter/receiver for local area network application

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