A Low Power, High Performance BiCMOS MIMO/Diversity Direct Conversion Transceiver IC for WiBro/WiMAX (802.16e)

Locher, Miriam A.; Tomesen, M.T.; Kuenen, J.C.; Daanen, A.; Visser, H.A.; Essink, B.; Vervoort, P.P.; Nijrolder, M.; Kopmeiners, R.; Redman-White, W.; Balmford, R.; Waffaoui, Rachid El

doi:10.1109/cicc.2007.4405691

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An Opamp For Low Supply-voltage Wideband Filter1

Introduction1

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“…In the wideband wireless applications such as LTE [26] and WiMAX [27], the bandwidth of analog baseband circuit is 10 MHz. In the WLAN 802.11n [36], the bandwidth of analog baseband circuit is 20 MHz.…”

Section: An Opamp For Low Supply-voltage Wideband Filtermentioning

confidence: 99%

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Phase Compensation Techniques for Low-Power Operational Amplifiers

Ito

Itakura

2010

IEICE Trans. Electron.

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An operational amplifier is one of the key functional blocks and is widely used in analog and mixed-signal circuits. For lowpower consumption, many techniques such as class AB and slew-rate enhancement have been proposed. Although phase compensation is related to power consumption, it has not been clearly discussed from the viewpoint of the power consumption. In this paper, the conventional and the improved Miller compensations and the phase compensation by introducing a new zero are dicussed for low-power operational amplifiers.

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Section: An Opamp For Low Supply-voltage Wideband Filtermentioning

confidence: 99%

“…So, the phase compensation is a crucial issue in the context of efforts to reduce the power consumption of the opamp. In the wideband wireless applications such as LTE [26] and WiMAX [27], the phase compensation of the opamp is also crucial to satisfy both wide bandwidth and low-power consumption.…”

Section: Introductionmentioning

confidence: 99%