2.7V to 5.5V, Low-Power, 4-/12-Channel 2-Wire Serial 8-Bit ADCs

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The MAX1036–MAX1039 low-power, 8-bit, multichannel, analog-to-digital converters (ADCs) feature internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. These devices operate from a single supply and require only 350µA at the maximum sampling rate of 188ksps. AutoShutdown™ powers down the devices between conversions reducing supply current to less than 1µA at low throughput rates. The MAX1036/MAX1037 have four analog input channels each, while the MAX1038/MAX1039 have twelve analog input channels. The analog inputs are software configurable for unipolar or bipolar and single-ended or pseudo-differential operation.

The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to VDD. The MAX1037/MAX1039 feature a 2.048V internal reference and the MAX1036/MAX1038 feature a 4.096V internal reference.

The MAX1036/MAX1037 are available in 8-pin SOT23 packages. The MAX1038/MAX1039 are available in 16-pin QSOP packages. The MAX1036–MAX1039 are guaranteed over the extended industrial temperature range (-40°C to +85°C). Refer to MAX1136–MAX1139 for 10-bit devices and to the MAX1236–MAX1239 for 12-bit devices.
MAX1036, MAX1037, MAX1038, MAX1039: Typical Operating Circuit MAX1036, MAX1037, MAX1038, MAX1039: Typical Operating Circuit Enlarge+

Key Features

  • High-Speed I²C-Compatible Serial Interface
    • 400kHz Fast Mode
    • 1.7MHz High-Speed Mode
  • Single Supply
    • 2.7V to 3.6V (MAX1037/MAX1039)
    • 4.5V to 5.5V (MAX1036/MAX1038)
  • Internal Reference
    • 2.048V (MAX1037/MAX1039)
    • 4.096V (MAX1036/MAX1038)
  • External Reference: 1V to VDD
  • Internal Clock
  • 4-Channel Single-Ended or 2-Channel Pseudo-Differential (MAX1036/MAX1037)
  • 12-Channel Single-Ended or 6-Channel Pseudo-Differential (MAX1038/MAX1039)
  • Internal FIFO with Channel-Scan Mode
  • Low Power
    • 350µA at 188ksps
    • 110µA at 75ksps
    • 8µA at 10ksps
    • 1µA in Power-Down Mode
  • Software Configurable Unipolar/Bipolar
  • Small Packages
    • 8-Pin SOT23 (MAX1036/MAX1037)
    • 16-Pin QSOP (MAX1038/MAX1039)


  • Battery-Powered Test Equipment
  • Handheld Portable Applications
  • Medical Instruments
  • Received-Signal-Strength Indicators
  • Solar-Powered Remote Systems
  • System Supervision

See parametric specs for Precision ADCs (< 5Msps) (432)

Part NumberResolution
# Input ChannelsConv. Rate
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
External VREF
External VREF
Unipolar VIN
Bipolar VIN
(ADC)(max)(nominal)(min)(max)(max)(max)(See Notes)
MAX1036 84188SARI2CBoth4.096154.0962.04849-691
$2.12 @1k
MAX1037 42.0483.32.0481.024
$2.12 @1k
MAX1038 124.09654.0962.048
$3.46 @1k
MAX1039 122.0483.32.0481.024
$3.31 @1k

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.

MAX1036EVKIT: Evaluation Kit for the MAX1036
MAX1038EVKIT: Evaluation Kit for the MAX1038
Request Reliability Report for: MAX1036L 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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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