DC至12+GHz， +30dBm OIP3, 7.2dB噪声图有源Balun在130nm BiCMOS射频采样多gbps数据转换器

2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) Pub Date : 2022-06-19 DOI:10.1109/RFIC54546.2022.9863207

S. Akhtar, G. Schuppener, T. Dinc, B. Haroun, S. Sankaran

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引用次数: 0

摘要

提出了一种采用双级反馈和分布式前馈失真消除的有源平衡器，用于宽带射频采样adc的驱动放大器。该直流耦合平衡器增益为16.5dB, HD2为60dBc，输出功率为3dBm (100Ω)，其线性带宽为>12GHz，保持OIP3>27dBm, NF<8dB，小信号带宽为18GHz，幅度<±0.5dB，相位不平衡<±2.5°。级联平衡+ ADC测量显示没有线性限制，同时允许19.5dB的低输入信号。该器件在130nm BiCMOS工艺中占地1mm2，在2×2mm2倒装QFN封装中从5V消耗100mA。

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DC to 12+GHz, +30dBm OIP3, 7.2dB Noise Figure Active Balun in 130nm BiCMOS for RF Sampling Multi-Gbps Data Converters

An active balun using dual stage feedback and distributed feedforward distortion cancellation for use as a driver amplifier for wideband RF sampling ADCs is presented. With a gain of 16.5dB & HD2 of 60dBc while delivering 3dBm (100Ω), the DC coupled balun achieves a linear-bandwidth of >12GHz holding OIP3>27dBm & NF<8dB, and small-signal bandwidth of 18GHz with <±0.5dB amplitude & <±2.5° phase imbalance. Cascaded balun + ADC measurements demonstrate no linearity limitation, while allowing for 19.5dB lower input signal. Occupying 1mm2in a 130nm BiCMOS process, the device consumes 100mA from 5V in a 2×2mm2 flip chip QFN package.

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2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

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