MAX1420

PRODUCTION

12-Bit, 60Msps, +3.3V, Low-Power ADC with Internal Reference

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • 3.3V Single Power Supply
  • 67dB SNR at fIN = 5MHz
  • 66dB SNR at fIN = 15MHz
  • Internal 2.048V Precision Bandgap Reference
  • Differential, Wideband Input T/H Amplifier
  • Power-Down Modes
    • 218mW (Reference Shutdown Mode)
    • 10µW (Shutdown Mode)
  • Space-Saving 48-Pin TQFP Package

The MAX1420, 3.3V, 12-bit analog-to-digital converter (ADC) features a fully-differential input, pipelined, 12-stage ADC architecture with wideband track-and-hold (T/H) and digital error correction, incorporating a fully-differential signal path. The MAX1420 is optimized for low-power, high dynamic performance applications in imaging and digital communications. The converter operates from a single 3.3V supply, and consumes only 221mW. The fully-differential input stage has a small signal -3dB bandwidth of 400MHz and may be operated with single-ended inputs.

An internal 2.048V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure accommodates an internal reference, or externally applied buffered or unbuffered reference for applications that require increased accuracy and a different input voltage range.

In addition to low operating power, the MAX1420 features two power-down modes: reference power-down and shutdown mode. In reference power-down, the internal bandgap reference is deactivated, which results in a typical 2mA supply current reduction. A full shutdown mode is available to maximize power savings during idle periods.

The MAX1420 provides parallel, offset binary, CMOS-compatible three-state outputs.

The MAX1420 is available in a 7mm x 7mm x 1.4mm, 48-pin TQFP package, and is specified over the commercial (0°C to +70°C) and the extended industrial (-40°C to +85°C) temperature range.

Pin-compatible lower speed versions of the MAX1420 are also available. Please refer to the MAX1421 data sheet for 40Msps and the MAX1422 data sheet for 20Msps.

Applications

  • CCD Pixel Processing
  • IF and Baseband Digitization
  • IR Focal Plane Arrays
  • Medical Ultrasound Imaging
  • Radar
MAX1420
12-Bit, 60Msps, +3.3V, Low-Power ADC with Internal Reference
MAX1420: Functional Diagram
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 3

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Evaluation Kits

MAX1420EVKIT

Evaluation Kit for the MAX1420, MAX1421, and MAX1422

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Features and Benefits

  • Up to 60Msps Sampling Rate
  • Low Voltage, Low Power Operation
  • Clock-Shaping Circuitry
  • Easy Data Capture Configuration
  • Fully Assembled and Tested

Product Details

The MAX1420 evaluation kit (EV kit) is a fully assembled and tested circuit board that contains all the components necessary to evaluate the performance of the MAX1420, MAX1421, or MAX1422, 12-bit, +3.3V, analog-to-digital converters (ADCs). The MAX1420/MAX1421/MAX1422 ADCs accept 2Vp-p differential analog inputs. The offset binary digital output produced by the ADC can be easily sampled with a user-provided high-speed logic analyzer or data-acquisition system. The EV kit comes with the 60Msps part (MAX1420) installed. Order a free sample of the MAX1421CCM or MAX1422CCM to evaluate the 40Msps or 20Msps parts.

Applications

  • CCD Pixel Processing
  • IF and Baseband Digitization
  • IR Focal Plane Arrays
  • Medical Ultrasound Imaging
  • Radar
MAX1420EVKIT
Evaluation Kit for the MAX1420, MAX1421, and MAX1422

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