The buffer uses a source follower topology whose nonlinearities are cancelled by the SAR algorithm, allowing us to achieve 99 dB spurious-free dynamic range (SFDR) despite the small amount of invested power. That approach made it possible to reduce the input capacitance of the ADC by a factor...
在[1]提出NS SAR的理论基础过后,其首先面对的问题有三点:1. 用于sample residue voltage的capacitor处引入额外的KT/C noise;2. 使用高功耗的static integrator,与低功耗的传统SAR ADC的特点相矛盾。 3. 使用Multi-input-pair comparator,使得比较器的噪声进一步增加。首先针对第一点,有些文章开始使用buffer来消除额...
19-6722; Rev 0; 6/13 备有评估板 MAX11154 18位,500ksps,内置基准的 0至5V SAR ADC,采用TDFN封装 概述 MAX11154 18位,500ksps,SAR ADC具有优异的交流和 直流性能,支持单极性输入范围,具有小尺寸,内置基准 等特性.MAX11154集成可选的6ppm/°C基准,带内部缓 冲器,从而节省了外部基准的成本和空间. ADC...
In this paper the authors present a 14b 35MS/s SAR ADC in 40nm CMOS with a loop-embedded input buffer that consumes 23% of the total ADC power. The buffer uses a source follower (SF) topology whose nonlinearities are cancelled by the SAR algorithm, enabling 99dB SFDR despite the small ...
difference between single-ended, pseudo-differential, fully-differential, and true-differential inputs. Additionally, it covers the difference between unipolar and bipolar inputs. Finally, it discusses the difference between a switched capacitor input SAR ADC and a SAR ADC with an internal buffer. ...
buffer to minimize the loading effect to the measurement point caused by the low ADC input ...
什么是SAR ADC？01 ADC简介 模数转换器，ADC(Analog toDigitalConverter)，是一个将模拟信号转换为数字...
FEATURES Fast throughput rate: 3 MSPS Wide input bandwidth: 40 MHz No pipeline delays with SAR ADC Excellent dc accuracy performance 2 parallel interface modes Low power: 90 mW (full power) and 2.5 mW (nap mode) Standby mode: 2 µA maximum Single 5 V supply operation Internal 2.5 V ...
AdcGroupDefinition:该组所含的ADCChannel。 AdcHwTrigSignal:当该通道是硬件触发时,需配置触发信号。 EruTriggerConfig/EruGatingConfig/GtmTriggerTimerConfig/GtmGatingTimerConfig:当该通道是硬件触发时,需配置其中一个。 软件触发的AdcGroup使用简述 根据配置定义result buffer,uint16 AdcSWGroup0_resultBuffer[通道数]...
input high‑Z mode simplify system designs, reduce component count, and increase channel density by removing the need for dedicated high speed ADC drivers and reference buffers. The WLCSP option of the AD4698 includes an internal reference buffer, which provides a true, buffered reference input....