MAX1448

10-Bit, 80Msps, Single 3.0V, Low-Power ADC with Internal Reference

3V, 10-Bit, 80Msps ADC Delivers 72dB SFDR


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Description

The MAX1448 3V, 10-bit analog-to-digital converter (ADC) features a fully differential input, a pipelined 10-stage ADC architecture with wideband track-and-hold (T/H), and digital error correction incorporating a fully differential signal path. The ADC is optimized for lowpower, high dynamic performance in imaging and digital communications applications. The converter operates from a single 2.7V to 3.6V supply, consuming only 120mW while delivering a 59dB (typ) signal-to-noise ratio (SNR) at a 20MHz input frequency. The fully differential input stage has a -3dB 400MHz bandwidth and may be operated with single-ended inputs. In addition to low operating power, the MAX1448 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 MAX1448 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.
MAX1448: Functional Diagram MAX1448: Functional Diagram Enlarge+

Key Features

  • Single 3.0V Operation
  • Excellent Dynamic Performance
    • 59dB SNR at fIN = 20MHz
    • 74dBc SFDR at fIN = 20MHz
  • Low Power
    • 40mA (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 (MAX1448 EV Kit)

Applications/Uses

  • Baseband and IF Digitization
  • CCD Imaging
  • Digital Set-Top Boxes
  • Ultrasound Imaging
  • Video Digitizing Applications
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
MAX1448 1108020739.35958.5-690.40.740048µP/10
TQFP/32
$13.52 @1k
See All High-Speed ADCs (> 5Msps) (61)
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.

CAD Symbols and Footprints

  • MAX14483AAP+
  • MAX14483AAP+T
  • MAX1448EHJ
  • MAX1448EHJ+
  • MAX1448EHJ+T
  • MAX1448EHJ-T
  • 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.

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