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AN642

更新时间： 2022-11-29 07:30:47

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
7页	263K
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Analog-to-Digital Converter Captures 1Gsps

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AN642 数据手册

A/D and D/A CONVERSION/SAMPLING CIRCUITS

HIGH-SPEED SIGNAL PROCESSING

Application Note 642: Jan 22, 2001

Analog-to-Digital Converter Captures 1Gsps

One of the industry's first ultra high-speed, 8-bit data converters with highest AC performance and a GHz

input bandwidth, the MAX104/6/8 family of data converters offers both sampling speed and signal

bandwidth for applications where these parameters are of the utmost importance. At their introduction in

1999, this family of high-speed analog-to-digital converters (ADCs) set a new standard for dynamic

performance requirements in high-frequency, wide-bandwidth applications. The following article outlines

the advantages of this family of ADCs and describes their impact and importance on digital

communications, DSOs and fast data acquisition systems.

The MAX104 processes analog input bandwidths that exceed 2.2GHz with 8-bit resolution. It sets a new

standard for performance in high-frequency, high-bandwidth digital communications receivers, digital

oscilloscopes, and high-speed data-acquisition systems.

The MAX104 is a fast silicon monolithic analog-to-digital converter (ADC) that integrates a high-

bandwidth track/hold (T/H) amplifier (Figure 1) with a high-speed quantizer that supports accurate

digitizing of wideband analog input signals from DC to 2.2GHz. It is based on Maxim's GST-2 Giga-Speed

silicon-bipolar process technology. This high-speed, self-aligned double-polysilicon process has been

developed for high-density, high-performance circuits. It employs many of the features, such as trench

isolation, that are incorporated in Maxim's lower performance GST-1 process.

Figure 1. This simplified block diagram shows how the MAX104 integrates a high-bandwidth T/H amplifier

with a high-speed quantizer.

Although many of the outstanding performance parameters of the MAX104 are possible with the

integrated-circuit process (such as a transition frequency of 27GHz for NPN transistors, a three-metal

interconnect system, small geometry, and precision laser-trimmed nickel-chrome (NiCr) thin-film

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