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Low-Power, 60Msps, Dual, 6-Bit ADC

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • ±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)

Applications/Uses

  • Cable Television Set-Top Boxes
  • Direct-Broadcast Satellite (DBS) Receiver
  • VSAT Receivers
  • Wide Local Area Networks (WLANs)

Description

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.

Simplified Block Diagram

MAX1002: Functional Diagram MAX1002: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .