电流舵型DAC,其功能是将N-bits的数字信号Din转换为对应大小的模拟电流量Iout。 1.1 电流开关型DAC 最简单的结构如下图所示,数字信号的每一位都通过开关来控制电流的输出,根据数字信号(二进制数)的位数,电流源的大小以2(二进制数的权重)的倍数增加,这样便实现了将数字信号转换为模拟的电流输出。 其中,D0代表最...
详见:王小桃带你读文献:电流舵型DAC The Current-Steering DAC - 知乎。 1.3 R-2R DAC的问题 Iout的非单调性 若D[5:1]的变化为 \[01111 \to 10000\] ,我们称这种变化为最高有效位跳变(MSB transition)。最高有效位跳变导致I1-I4从导通变为关断,而I5从关断变为导通,理想情况下,这一跳变只会让I...
In this paper, an optimization method of switching sequence is proposed to compensate for the gradient errors in the current source array of the current-steering digital-to-analog converter. Combining the central symmetry method and the iterative method, the linear and the quadratic gradient errors ...
用于控制电流舵型数模转换器电流源开关的电压限幅电路 Voltage limiter circuit for controlling the current steering digital-analogue converter current source switch本发明涉及一种控制电流舵型DAC电流源开关的电压限幅电路,包括并联设置于限幅电路输出端和接地端之间的第一开关单元和第二开关单元,输入端与限幅电路输入...
Figure 1a shows the familiar connection of a CMOS d/a converter, such as the 10-bit AD7520, in the current-steering mode; Figure 1b shows how the DAC can be connected for voltage switching by reversing the roles of the MSB node (REF/AIN) and the active switch bus (OUT 1). Read ...
(Color online) Latch timing mismatch of current-steering DAC 2 锁存驱动器时序失配来源及影响 锁存驱动器时序失配的主要来源, 包括时钟网络延时失配、开关驱动晶体管的梯度失配和随机失配. 一个在65 nm CMOS工艺下设计精度为14b的电流舵 DAC被用于仿真分析锁存驱动器时序失配对动态性能的影响. DAC采用6+4+46+...
A 14-bit 1.0-GS/s current-steering digital-to-analog converter (DAC) was designed in a 65-nm CMOS process. For such current-steering DACs with a high sampling rate, the code-dependent load variations and switching glitches are a main bottleneck which limits the spurious-free dynamic range ...
An Introduction to High Data Rate Current-Steering Nyquist DACs: Fasten your seat belts The current-steering DAC is the most common architecture for medium resolution and ultrahigh data rates, extending well to tens of giga samples per seconds... G Manganaro - IEEE Solid-State Circuits Magazine...
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EXCITE EXCL EXCLAIM EXCLD EXCLOT EXCLU EXCLV EXCM ExCo EXCOM ExComm EXCOMMS EXCON EXCOP EXCP EXCS EXCSA EXCT ExD EXDAC EXDAMS EXDC EXDIR EXDIR/ICA EXDIS EXDIV EXDLVY EXDRA EXDRONE EXE EXEC ExecComm EXECCTL EXECR EXEF ▼