MAX11902

18-Bit, 1Msps, Low-Power, Fully Differential SAR ADC

Fast and Low-Power 18-Bit SAR ADC with Reference Buffer


Please check latest availability status for a specific part variant.

Description

The MAX11902 is an 18-bit, 1Msps, single-channel, fully differential SAR ADC with internal reference buffers. The MAX11902 provides excellent static and dynamic performance with best-in-class power consumption that directly scales with throughput. The device has a unipolar differential ±VREF input range. Supplies include a 3.3V supply for the reference buffers, a 1.8V analog supply, a 1.8V digital supply, and a 1.5V to 3.6V digital interface supply.

This ADC achieves 98.9dB SNR and -123dB THD, guarantees 18-bit resolution with no-missing codes and 1.5 LSB INL (max).

The MAX11902 communicates data using a SPI-compatible serial interface. The MAX11902 is offered in a 20-pin, 4mm x 4mm, TQFN package and is specified over the -40°C to +85°C* operating temperature range.

MAX11902: Application Diagram MAX11902: Application Diagram Enlarge+

Key Features

  • High DC/AC Accuracy Provides Better Measurement Quality
    • 18-Bit Resolution with No Missing Codes
    • ±1.5 LSB INL and ±0.5 LSB DNL Maximum at 18 Bits
    • 98.9dB SNR and 98.8dB SINAD at fIN = 10kHz
    • -125dB SFDR and -123dB THD at fIN = 10kHz
  • High Sampling Rate SAR Architecture Enables Fast Settling and Acquisition
    • 1Msps Throughput with No Pipeline Delay
  • Integration Simplifies Design
    • Integrated Reference Buffers
    • ±VREF Unipolar Differential Analog Input Range
  • Scalable Ultra-Low Power Supply Reduces Power Consumption
    • 6.7mW at 1Msps
    • Scale as 6.7µW/ksps
  • Flexible Low-Voltage Supplies Save Cost
    • 1.8V Analog and Digital Core Supply
    • 1.5V to 3.6V Digital Interface Supply
    • 3.3V REFVDD Reference Buffer Supply
  • Flexible, Industry-Standard Serial Interface and Small Package Reduce Size
    • SPI-/QSPI-/MICROWIRE®/DSP-Compatible
    • 20-Pin, 4mm x 4mm, TQFN Package

Applications/Uses

  • Automatic Test Equipment
  • Battery-Powered Equipment
  • Data Acquisition Systems
  • Medical Instrumentation
  • Process Control and Industrial Automation
  • Telecommunications
  • Test and Measurement
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxminmaxmaxSee Notes
MAX11902 1811000SAR
DSP-Compatible Serial
Microwire
QSPI
SPI
Diff. Only2.53.63.698-1231.5
TQFN/20
$15.95 @1k
See All Precision ADCs (< 5Msps) (444)
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.


MAX11905EVKIT: Evaluation Kit for the MAX11900, MAX11901, MAX11902, MAX11903, MAX11904, and MAX11905

Quality and Environmental Data

Product Reliability Reports: MAX11902.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX11900-5 IBIS Model
  • CAD Symbols and Footprints

  • MAX11902ETP+
  • MAX11902ETP+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.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


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    05/29/2020 - 05/31/2020, Detroit, MI
    2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.

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