MAX11638

8-Bit, 16-/8-Channel, 300ksps ADCs with FIFO and Internal Reference

Complete Family of Low-Cost, 8-Bit, 8-/16-Channel ADCs with Internal Reference, FIFO, and SPI Interface


Please check latest availability status for a specific part variant.

Description

The MAX11638/MAX11639/MAX11642/MAX11643 are serial 8-bit analog-to-digital converters (ADCs) with an internal reference. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX11642/MAX11643 have 16 input channels and the MAX11638/MAX11639 have 8 input channels. These four devices operate from either a +3V supply or a +5V supply, and contain a 10MHz SPI/QSPI™/MICROWIRE®-compatible serial port.

The MAX11638/MAX11639 are available in 16-pin QSOP packages. The MAX11642/MAX11643 are available in 24-pin QSOP packages. All four devices are specified over the extended -40°C to +85°C temperature range.
MAX11638, MAX11639, MAX11642, MAX11643: Functional Diagram MAX11638, MAX11639, MAX11642, MAX11643: Functional Diagram Enlarge+

Key Features

  • Analog Multiplexer with Track-and-Hold
    • 16 Channels (MAX11642/MAX11643)
    • 8 Channels (MAX11638/MAX11639)
  • Single Supply
    • 2.7V to 3.6V (MAX11639/MAX11643)
    • 4.75V to 5.25V (MAX11638/MAX11642)
  • Internal Reference
    • 2.5V (MAX11639/MAX11643)
    • 4.096V (MAX11638/MAX11642)
  • External Reference: 1V to VDD
  • 16-Entry First-In/First-Out (FIFO)
  • Scan Mode, Internal Averaging, and Internal Clock
  • Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature
  • 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible Interface
  • Small Packages
    • 16-Pin QSOP (MAX11638/MAX11639)
    • 24-Pin QSOP (MAX11642/MAX11643)

Applications/Uses

  • Data Logging
  • Data-Acquisition Systems
  • Industrial Control Systems
  • Instrumentation
  • Patient Monitoring
  • System Supervision
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxSee Notes
MAX11638 88300SARSPIS.E. Only4.09615.254.09649-700.5
QSOP/16
$1.80 @1k
MAX11639 82.53.62.5
QSOP/16
$1.80 @1k
MAX11642 164.0965.254.096
QSOP/24
$2.17 @1k
MAX11643 162.53.62.5
QSOP/24
$2.35 @1k
See All Precision ADCs (< 5Msps) (464)
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.


MAX11633EVSYS: Evaluation Systems for the MAX1030, MAX1031, MAX1230, MAX1231, MAX11624, MAX11625, MAX11632, MAX11633, MAX11634, MAX11635, MAX11642, and MAX11643
MAX11635EVSYS: Evaluation Systems for the MAX1030, MAX1031, MAX1230, MAX1231, MAX11624, MAX11625, MAX11632, MAX11633, MAX11634, MAX11635, MAX11642, and MAX11643
MAX1231BEVSYS: Evaluation Systems for the MAX1030, MAX1031, MAX1230, MAX1231, MAX11624, MAX11625, MAX11632, MAX11633, MAX11634, MAX11635, MAX11642, and MAX11643

Technical Documents

Tutorial 4699 Overview of Sensor Signal Paths

Quality and Environmental Data

Request Reliability Report for: MAX11638 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX11638EEE+
  • MAX11638EEE+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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    Environmental Management System >

     
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    Related Resources

    Type ID PDF Title
    Tutorial 4699 Overview of Sensor Signal Paths