CMOS operational amplifier with nearly constant settling time

Klinke, R.; Hosticka, B.J.; Pfleiderer, H.-J.; Zimmer, G.

doi:10.1049/ip-g-2.1990.0047

Cited by 4 publications

(2 citation statements)

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“…Optional ADB block used in this work is controlled by a high pass filtered input signal. This allows it to be used not only in switched capacitor circuits, which commonly use adaptive biasing or slew rate enhancement as a way to improve dynamic response [27,28], but also in continuous-time applications as means to reduce bandwidth degradation for large sinusoidal inputs or as a way to implement automatic standby operation.…”

Section: Introductionmentioning

confidence: 99%

Low Voltage CMOS Power Amplifier with Rail-to-Rail Input and Output

Loikkanen

Kostamovaara

2006

Analog Integr Circ Sig Process

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This paper describes a CMOS power amplifier with rail-to-rail input and output, also suitable for low voltage applications. The amplifier uses Simple Miller Compensation with high bandwidth stage to robustly and power efficiently compensate the amplifier. Circuit also includes a common mode adapter block, based on resistive level shift network, to implement rail-to-rail input and optional adaptive biasing block, which can be used to extend bandwidth of the amplifier for large high frequency inputs in continuous-time applications. Measurement results show that the amplifier is capable of driving heavy resistive and capacitive loads having maximum output current exceeding 100 mA, when driving 1 nF 10 load from 3.0 V supply. Without adaptive biasing the linear amplifier achieves 5.7 MHz unity gain frequency and 61 • phase margin when driving 1 nF 1 k load, while drawing 2.4 mA from 1.5 V supply.

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Section: Introductionmentioning

confidence: 99%

Low Voltage CMOS Power Amplifier with Rail-to-Rail Input and Output

Loikkanen

Kostamovaara

2006

Analog Integr Circ Sig Process

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“…The settling performance of the op amp determines the accuracy and the speed that can be reached. Many aspects of the settling behavior of operational amplifiers have been analyzed by various authors in order to improve the settling performance [48]. For example, [49] discussed the design considerations for fast-settling op amps in switched-capacitor circuits.…”

Section: Introductionmentioning

confidence: 99%