我上面一篇文章写了做有源滤波器的内容,那这篇就来讨论做 buffer 的可能性。 ADC 类型定为SAR ADC(这是对缓冲最苛刻的情况),在后续建模中ADC 输入模型(等效)为采样电容 ,采样频率 ,允许建立误差 ≤ 0.5 LSB。 我们来进行逐条定量。 如果ADC 输入信号是满 ...
本文介绍了基于SAR ADC的系统和基于sigma-delta(∑-∆)ADC的分布式数据采集系统同步的传统方法,且探讨了这两种架构之间的区别。我们还将讨论同步多个∑-∆ ADC时遇到的典型不便。最后,提出一种基于AD7770采样速率转换器(SRC)的创新同步方法,该方法显示如何在不 ...
这个没有链路延迟是专门给 ATE 设计的,因为测试芯片的时候要快,不要有延迟。 确保线性度不受影响(保持 ppm-级 INL);结合 24-bit 数字平均可获得更高 SNR 与 DR(OSR=1024 时 DR 可增加 27 dB)。 13 ±6.25×VREF ±25.6 V 11 ±5×VREF ±20.48 V 7 ±2.5×VREF ±10.24 V 5 ±1.5625×VREF ± ...
1. 这篇论文提出了一种2阶噪声整形(NS)SAR ADC设计,结合失配误差整形(MES)和数字预测(DP)方法补偿输入范围损失,采用粗细比较(CFC)方案降低功耗,并通过异步逻辑设计省去外部高速时钟,在130nm CMOS工艺下实现81.54dB SNDR和13.25bit ENOB性能。 摘要: 高 ...
The key to obtaining the best performance on your successive-approximation-register (SAR) analog-to-digital converter (ADC) is optimizing the driver amplifier and resistor-capacitor (RC) filter ...
电容模数转换器与电荷注入模数转换器融合的SAR ADC结构优化,采用紧凑电荷注入单元和脉冲门控数字控制,在28nm CMOS工艺下实现0.000259 mm2面积和0.835 mW功耗,支持700 MHz采样频率,达到38.7 dB SNDR和17.03 fJ/conv-step能效,显著优于传统时间 interleaving ADC设计。 摘要 ...
All naturally occurring phenomena and signals are analog in nature. When we want to process these natural signals, it is understood that whatever data comes from the external world first needs to be ...
TES Electronic Solutions GmbH adds to its Mixed-Signal IP portfolio a new 10-bit SAR ADC IP. The ADC IP is designed for sampling rates up to 125 kS/s and is targeted at integrated diagnosis ...
Linear Technology Corp. has introduced the LTC2373-18, an 8-channel, 18-bit, 1-MS/s successive-approximation-register (SAR) ADC with 100-dB SNR performance. The LTC2373-18 is equipped with a ...
Linear Technology Corporation introduces the LTC2323-16, a dual 16-bit 5Msps simultaneous sampling, successive approximation register (SAR) ADC with flexible differential inputs. The LTC2323-16 from ...
TOKYO--(BUSINESS WIRE)--Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced new AnalogPAK™ ICs, including lower power and ...
在电子信息产业的复杂生态中,模数转换器(analog-to-digital converter,ADC)是连接模拟世界与数字世界的“桥梁”。作为电子信息系统的核心器件,承担着将连续变化的模拟信号(如声音、电压、射频信号等)转化为离散数字信号的关键任务,其性能直接决定了 ...