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MAX1444

MAX1444

10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference

Low Power 3V, 10-Bit, 40Msps ADC Delivers 72dB SFDR

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Overview

Description

The MAX1444 10-bit, 3V analog-to-digital converter (ADC) features a pipelined 10-stage ADC architecture with fully differential wideband track-and-hold (T/H) input and digital error correction incorporating a fully differential signal path. This ADC is optimized for lowpower, high dynamic performance applications in imaging and digital communications. The MAX1444 operates from a single 2.7V to 3.6V supply, consuming only 57mW while delivering a 59.5dB signal-to-noise ratio (SNR) at a 20MHz input frequency. The fully differential input stage has a 400MHz -3dB bandwidth and may be operated with single-ended inputs. In addition to low operating power, the MAX1444 features a 5µA power-down mode for idle periods.

An internal 2.048V precision bandgap reference is used to set the ADC full-scale range. A flexible reference structure allows the user to supply a buffered, direct, or externally derived reference for applications requiring increased accuracy or a different input voltage range.

See a parametric table of the complete family of pin-compatible, 10-bit high-speed ADCs.

The MAX1444 has parallel, offset binary, CMOS-compatible three-state outputs that can be operated from 1.7V to 3.6V to allow flexible interfacing. The device is available in a 5mm x 5mm 32-pin TQFP package and is specified over the extended industrial (-40°C to +85°C) temperature range.
MAX1444: Functional Diagram MAX1444: Functional Diagram Enlarge+

Key Features

  • Single 3.0V Operation
  • Excellent Dynamic Performance
    • 59.5dB SNR at fIN = 20MHz
    • 74dBc SFDR at fIN = 20MHz
  • Low Power
    • 19mA (Normal Operation)
    • 5µA (Shutdown Mode)
  • Fully Differential Analog Input
  • Wide 2Vp-p Differential Input Voltage Range
  • 400MHz -3dB Input Bandwidth
  • On-Chip 2.048V Precision Bandgap Reference
  • CMOS-Compatible Three-State Outputs
  • 32-Pin TQFP Package
  • Evaluation Kit Available

Applications/Uses

  • Baseband and IF Digitization
  • CCD Imaging
  • Digital Set-Top Boxes
  • Ultrasound Imaging
  • Video Digitizing Applications

Parametric Specs

Part NumberInput Chan.Resolution
(bits)		Sample Rate
(Msps)		AC Specs
(MHz)		SFDR
(dBc)		ENOB
(bits)		SINAD
(dB)		SNR
(dB)		THD
(dB)		DNL
(±LSB)		INL
(±LSB)		Full Pwr. BW
(MHz)		ICC
(mA)		Data Bus InterfacePackage/PinsBudgetary
Price
max ≥@ fINminminmintypSee Notes
MAX1444 1104020909.55959.5-72.20.40.640023.5µP/10
TQFP/32
$10.31 @1k
See All High-Speed ADCs (> 5Msps) (53)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

Technical Documents

App Note 3292 Crunching FFTs with Microsoft Excel
Tutorial 1819 Selecting the Optimum Test Tones and Test Equipment for Successful High-Speed ADC Sinewave Testing
Tutorial 1040 Coherent Sampling vs. Window Sampling
Tutorial 1023 Understanding Pipelined ADCs
Tutorial 989 Multiply Your Sampling Rate with Time-Interleaved Data Converters
Tutorial 729 Dynamic Testing of High-Speed ADCs, Part 2
Tutorial 728 Defining and Testing Dynamic Parameters in High-Speed ADCs, Part 1

Quality and Environmental Data

Product Reliability Reports: MAX1444.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

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Related Resources

Related Products

Technical Docs

Reference Designs

Type ID Title
Evaluation Board2322MAX1448EVKIT Evaluation Kit for the MAX1444, MAX1446, MAX1448, and MAX1449