How many bits does a pipelined ADC resolve?
Figure 1 shows a block diagram of a 12-bit pipelined ADC. Figure 1. Pipelined ADC with four 3-bit stages (each stage resolves two bits). In this schematic, the analog input, V IN, is first sampled and held steady by a sample-and-hold (S&H), while the flash ADC in stage one quantizes it to three bits.
How is the digital value of an ADC calculated?
20.2 Basic Operation An ADC samples an analog waveform at uniform time intervals and assigns a digital value to each sample. The digital value appears on the converter’s output in a binary coded format. The value is obtained by dividing the sampled analog input voltage by the reference voltage and them multiplying by the number of digital codes.
How does an ADC convert an analog waveform to digital?
An ADC samples an analog waveform at uniform time intervals and assigns a digital value to each sample. The digital value appears on the converter’s output in a binary coded format.
What’s the highest sampling rate for pipelined ADCs?
The highest sampling rates (a few hundred Msps or higher) are still obtained using flash ADCs. Nonetheless, pipelined ADCs of various forms have improved greatly in speed, resolution, dynamic performance, and low power in recent years.
Which is better CMOS or bipolar pipelined ADCs?
Lower sampling-rate CMOS pipelined ADCs and bipolar pipelined ADCs (even those with a very high sampling rate) tend to favor more bits per stage. This also results in less data latency.
What do you need to know about pipeline ADCs?
ELEN 689-603 Content • Interest of pipeline ADCs • The Origins of Pipeline ADCs • Basic Architecture • Digital Correction • Detailed example • Performance evaluation • Design-performance relations Interest of the Pipeline ADCs
Which is the flash ADC encoder for pipeline?
Analog Devices Products AD9202 pipeline 10 32 3 N/A 90 AD9203 pipeline 10 40 3 N/A 50 MAXIM Products MAX1201 14 2.2 5 83 269 The Origins of Pipeline ADCs 1- The Flash ADC Encoder Vref Vin 2n-1