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±5V、1.5Gsps、8位、超高速、ADC,带有片上2.2GHz采样/保持放大器

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主要特征

应用/用途

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主要特征

  • 1.5Gsps Conversion Rate
  • 2.2GHz Full-Power Analog Input Bandwidth
  • 7.5 Effective Bits at fIN = 750MHz (Nyquist Frequency)
  • ±0.25 LSB INL and DNL
  • 50Ω Differential Analog Inputs
  • ±250mV Input Signal Range
  • On-Chip, +2.5V Precision Bandgap Voltage Reference
  • Latched, Differential PECL Digital Outputs
  • Selectable 8:16 Demultiplexer
  • Internal Demux Reset Input with Reset Output
  • 192-Contact ESBGA Package
  • Pin Compatible with MAX104 (1Gsps) and MAX106 (600Msps)

应用/用途

  • 自动测试设备(ATE)
  • 数字示波器
  • 数字射频/中频信号处理
  • 直接射频下变频器
  • 高能物理
  • 高速数据采集器
  • 雷达/ECM系统

描述

The MAX108 PECL-compatible, 1.5Gsps, 8-bit ultra high-speed analog-to-digital converter (ADC) allows accurate digitizing of analog signals with bandwidths to 2.2GHz. Fabricated on Maxim's proprietary advanced GST-2 bipolar process, the MAX108 integrates a high-performance track/hold (T/H) amplifier and a quantizer on a single monolithic die.

The innovative design of the internal T/H, which has an exceptionally wide 2.2GHz full-power input bandwidth, results in high performance (typically 7.5 effective bits) at the Nyquist frequency. A fully differential comparator design and decoding circuitry reduce out-of-sequence code errors (thermometer bubbles or sparkle codes) and provide excellent metastable performance. Unlike other ultra high-speed ADCs that can have errors resulting in false full- or zero-scale outputs, the MAX108 limits the error magnitude to 1 LSB.

The analog input is designed for either differential or single-ended use with a ±250mV input voltage range. Dual, differential, positive-referenced emitter-coupled logic (PECL)-compatible output data paths ensure easy interfacing and include an 8:16 demultiplexer feature that reduces output data rates to one-half the sampling clock rate. The PECL outputs can be operated from any supply between +3V to +5V for compatibility with +3.3V or +5V referenced systems. Control inputs are provided for interleaving additional MAX108 devices to increase the effective system sampling rate.

The MAX108 is packaged in a 25mm x 25mm, 192-contact Enhanced Super Ball-Grid Array (ESBGA™) and is specified over the commercial (0°C to +70°C) temperature range. For pin-compatible, lower speed versions of the MAX108, see the MAX104 (1Gsps) and the MAX106 (600Msps) data sheets.

简化框图

MAX108:典型工作电路 MAX108:典型工作电路 Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心