R-2R DAC R-2R Digital-to-Analogue Converter, or DAC, is a data converter which use two precision resistor to convert a digital binary number into an analogue output signal proportional to the value of the digital number

Bitstream是PHILIPS自己在1989年发明的1Bit转换系统名称，这种系统能非常高速地将CD上的16Bit数据转换成真正的1Bit数据，它的好处是可以用一种独有的& #34;真实&# 34;数码转换器，最后提供接近完美的音质效果，它所用的技术是一种转换式电容网络，将数码信号直接变成模似信号。

A 2-bit DIGITAL TO ANALOG CONVERTER (DAC) using PASS-TRANSISTOR logic is presented in this paper to analyze accuracy, linearity, and speed. For accurate DAC operation, integral nonlinearity must be less. This paper introduces a 2-bit DAC format using 150 nm CMOS technology using PASSS TRANSISTOR logic as a switch.

Converting an “n”-bit digital input code into an equivalent analogue output voltage between 0 and some V MAX value can be done in a number of ways, but the most common and easily understood conversion methods uses a weighted resistors and a summing amplifier, or a R-2R resistor ladder network and operational amplifier.

Current-mode binary DACs are shown in Figure 2A (resistor-based), and Figure 2B (current-source based). An N-bit DAC of this type consists of N weighted current sources (which may simply be resistors and a voltage reference) in the ratio 1:2:4:8:....:2N–1. The LSB switches the 2N–1 current, the MSB the 1 current, etc.

2015年9月27日 · HIFIDIY论坛-这是我观察国内外著名DAC之后分析发现的。 很多国外高端品牌只能完成前两步。 MSB，Total DAC，都可以很好的完成这三步，AKDesign代理的Playback MPS系列可以很好的完成 ...

This leads to the R-2R ladder technique, which implements only two resistors for DAC functionality for every digital bit. This post is a brief guide on R-2R DAC and shows why the latter is better than the binary-weighted DAC that we have discussed in previous articles.

DAC 2是针对那些使用普及型CD唱机、DVD唱机，却期望播放CD片时获得更佳音质的消费者所设计，只需加上一条好的数码线（试音时使用音乐丝带Nordost同轴线）就可以了。

2 bit Binary Weighted DAC Vo = -V_ref* (R_f/R) (b0/4 + b1/2) If R_f = R, then Vo = -V_ref* (b0/4 + b1/2) Here I am using V_ref = -4 V When b0 = 0, b1 …

Adafruit Industries, Unique & fun DIY electronics and kits Adafruit PCM5102 I2S DAC with Line Level Output - 112dB SNR : ID 6250 - We stock a lot of chips and development boards that are able to do high quality digital I2S out, which makes for great quality audio playback.