12-Bit, 40Msps ADC

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The MAX1206 is a 3.3V, 12-bit analog-to-digital converter (ADC) featuring a fully differential wideband track-and-hold (T/H) input, driving the internal quantizer. The MAX1206 is optimized for low power, small size, and high dynamic performance. This ADC operates from a single 3.0V to 3.6V supply, consuming only 159mW, while delivering a typical signal-to-noise ratio (SNR) performance of 68.6dB at a 20MHz input frequency. The T/H-driven input stage accepts single-ended or differential inputs. In addition to low operating power, the MAX1206 features a 0.15mW power-down mode to conserve power during idle periods.

A flexible reference structure allows the MAX1206 to use its internal precision bandgap reference or accept an externally applied reference. A common-mode reference is provided to simplify design and reduce external component count in differential analog input circuits.

The MAX1206 supports both a single-ended and differential input clock drive. Wide variations in the clock duty cycle are compensated with the ADC's internal duty-cycle equalizer.

The MAX1206 features parallel, CMOS-compatible outputs. The digital output format is pin selectable to be either two's complement or Gray code. A data-valid indicator eliminates external components that are normally required for reliable digital interfacing. A separate power input for the digital outputs accepts a voltage from 1.7V to 3.6V for flexible interfacing with various logic levels. The MAX1206 is available in a 6mm x 6mm x 0.8mm, 40- pin thin QFN package with exposed paddle (EP), and is specified for the extended industrial (-40°C to +85°C) temperature range.

Refer to the MAX1209 and MAX1211 (see Pin-Compatible Higher/Speed Versions table) for applications that require high dynamic performance for IF input frequencies.

See a parametric table of the complete family of pin-compatible, 12-/14-bit high-speed ADCs.
MAX1206: Functional Diagram MAX1206: Functional Diagram Enlarge+

Key Features

  • Excellent Dynamic Performance
    • 68.6dB SNR at fIN = 20MHz
    • 90dBc SFDR at fIN = 20MHz
  • Low-Power Operation
    • 159mW at 3.0V (Single-Ended Clock)
    • 181mW at 3.3V (Single-Ended Clock)
    • 198mW at 3.3V (Differential Clock)
  • Differential or Single-Ended Clock
  • Accepts 20% to 80% Clock Duty Cycle
  • Fully Differential or Single-Ended Analog Input
  • Adjustable Full-Scale Analog Input Range
  • Common-Mode Reference
  • Power-Down Mode
  • CMOS-Compatible Outputs in Two's Complement or Gray Code
  • Data-Valid Indicator Simplifies Digital Design
  • Out-of-Range and Data-Valid Indicators
  • Miniature, 40-Pin Thin QFN Package with Exposed Paddle
  • Pin-Compatible, IF Sampling ADC Available (MAX1211ETL)
  • Evaluation Kit Available (Order MAX1211EVKIT)


  • Communication Receivers Cellular, LMDS, Point-to-Point Microwave, MMDS, HFC, WLAN
  • Low-Power Data Acquisition
  • Portable Instrumentation
  • Ultrasound and Medical Imaging
Part NumberInput Chan.Resolution
Sample Rate
AC Specs
Full Pwr. BW
max ≥@ fINminminmintypSee Notes
MAX1002 266020535.85370.250.255587
$3.77 @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.

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

Quality and Environmental Data

Product Reliability Reports: MAX1206.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Evaluation Kit: MAX1211EVKIT

CAD Symbols and Footprints

  • MAX1206ETL+
  • 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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    Environmental Management System >


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