MAX1446:10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference

3V, 10-Bit, 60Msps ADC Delivers 72dB SFDR

The MAX1446 10-bit, 3V analog-to-digital converter (ADC) features a fully differential input, a pipelined 10-stage ADC architecture with digital error correction and wideband track and hold (T/H) incorporating a fully differential signal path. This ADC is optimized for low-power, high dynamic performance applications in imaging and digital communications. The MAX1446 operates from a single 2.7V to 3.6V supply, consuming only 90mW 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 MAX1446 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. Lower and higher speed, pin-compatible versions of the MAX1446 are also available. Refer to the MAX1444 data sheet for a 40Msps version, the MAX1448 datasheet for an 80Msps version, and the MAX1449 datasheet for a 105Msps version. The MAX1446 has parallel, offset binary, three-state outputs that can be operated from 1.7V to 3.3V 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) and automotive (-40°C to+105°C) temperature ranges.

Key Features
  • Single 3.0V Operation
  • Excellent Dynamic Performance
    • 59.5dB SNR at fIN = 20MHz
    • 73dB SFDR at fIN = 20MHz
  • Low Power:
    • 30mA (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)
MAX1446: Functional Diagram
MAX1446: Functional Diagram
Applications/Uses
  • Baseband and IF Digitization
  • CCD Imaging
  • Digital Set-Top Boxes
  • Ultrasound Imaging
  • Video Digitizing Applications
DataSheet
titleDownload file
MAX1446 Data SheetMAX1446.pdf
Parametrics
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
MAX14461106020739.55959.5-700.40.640037µP/10TQFP/32$7.86 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • MAX1448:10-Bit, 80Msps, Single 3.0V, Low-Power ADC with Internal Reference
  • MAX1444:10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference
  • MAX1449:10-Bit, 105Msps, Single +3.3V, Low-Power ADC with Internal Reference
  • MAX1425:10-Bit, 20Msps ADC
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1446EHJActiveTQFP,;32 pin;51.8 mm²-40°C to +85°CSee data sheet
MAX1446EHJ+ActiveTQFP,;32 pin;51.8 mm²-40°C to +85°CLead Free
MAX1446EHJ+TActiveTQFP,;32 pin;51.8 mm²-40°C to +85°CLead Free
MAX1446EHJ-TNo Longer AvailableMAX1446EHJ+TTQFP,;32 pin;51.8 mm²-40°C to +85°CSee data sheet
MAX1446GHJ+ActiveTQFP,;32 pin;51.8 mm²-40°C to +105°CLead Free
MAX1446GHJ+TActiveTQFP,;32 pin;51.8 mm²-40°C to +105°CLead Free
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MAX1446.pdf MAX1446
MAX1446.pdf MAX1446
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Selecting the Optimum Test Tones and Test Equipment for Successful High-Speed ADC Sinewave Testing MAX1449
Coherent Sampling vs. Window Sampling MAX1449
Understanding Pipelined ADCs MAX1446
Multiply Your Sampling Rate with Time-Interleaved Data Converters MAX1449
Dynamic Testing of High-Speed ADCs, Part 2 MAX1449
Defining and Testing Dynamic Parameters in High-Speed ADCs, Part 1 MAX1449
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MAX1446.pdf MAX1446