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低功耗、60Msps、双路、6位ADC

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主要特征

应用/用途

简化框图

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主要特征

  • ±1/4LSB INL and DNL, Typical
  • 1/4LSB (typ) Channel-to-Channel Offset Matching
  • 0.1dB Gain and 0.5° Phase Matching, Typical
  • Internal Bandgap Voltage Reference
  • Two Matched 6-Bit, 60Msps ADCs
  • Excellent Dynamic Performance:
    • 5.85 ENOB with 20MHz Analog Input
    • 5.7 ENOB with 50MHz Analog Input
  • Internal Oscillator with Overdrive Capability
  • 55MHz (-0.5dB) Bandwidth Input Amplifiers with True Differential Inputs
  • User-Selectable Input Full-Scale Range (125mVp-p, 250mVp-p, or 500mVp-p)
  • Single-Ended or Differential Input Drive
  • +5V Single Supply
  • TTL Outputs
  • 90Msps Upgrade with +3.3V CMOS-Compatible Output Available (MAX1003)

应用/用途

  • 有线电视机顶盒
  • 直接转播卫星(DBS)接收机
  • VSAT接收器
  • 无线局域网(WLAN)

描述

The MAX1002 is a dual, 6-bit analog-to-digital converter (ADC) that combines high-speed, low-power operation with a user-selectable input range, an internal reference, and a clock oscillator. The dual, parallel ADCs are designed to convert in-phase (I) and quadrature (Q) analog signals into two 6-bit offset-binary-coded digital outputs at sampling rates up to 60Msps while achieving typical integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1/4LSB. The ability to interface directly with baseband I and Q signals makes the MAX1002 ideal for use in direct-broadcast satellite, VSAT, and QAM16 demodulation applications.

The MAX1002 input amplifiers feature true differential inputs, a 55MHz -0.5dB analog bandwidth, and user-programmable input full-scale ranges of 125mVp-p, 250mVp-p, or 500mVp-p. With an AC-coupled input signal, matching performance between input channels is typically 0.1dB gain, 1/4LSB offset, and 0.5° phase. Dynamic performance is 5.85 effective number of bits (ENOB) with a 20MHz analog input signal, or 5.78 ENOB with a 50MHz input signal.

The MAX1002 operates with a single +5V power supply and provides TTL-compatible digital outputs. The device is available in the commercial temperature range (0°C to +70°C) and comes in a 36-pin SSOP package.

简化框图

MAX1002:功能框图 MAX1002:功能框图 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