MAX1083A, MAX1083B

300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference

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The MAX1082/MAX1083 10-bit analog-to-digital converters (ADCs) combine a 4-channel analog-input multiplexer, high-bandwidth track/hold (T/H), and serial interface with high conversion speed and low power consumption. The MAX1082 operates from a single +4.5V to +5.5V supply; the MAX1083 operates from a single +2.7V to +3.6V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/pseudo-differential operation.

The 4-wire serial interface connects directly to SPI/QSPI™ and MICROWIRE® devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1082/ MAX1083 use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The devices feature an internal +2.5V reference and a reference-buffer amplifier with a ±1.5% voltage-adjustment range. An external reference with a 1V to VDD range may also be used.

The MAX1082/MAX1083 provide a hard-wired active-low SHDN pin and four software-selectable power modes (normal operation, reduced power (REDP), fast power-down (FASTPD), and full power-down (FULLPD)). These devices can be programmed to shut down automatically at the end of a conversion or to operate with reduced power. When using the power-down modes, accessing the serial interface automatically powers up the devices, and the quick turn-on time allows them to be shut down between all conversions.

The MAX1082/MAX1083 are available in 16-pin TSSOP packages.

MAX1082, MAX1082A, MAX1082B, MAX1083, MAX1083A, MAX1083B: Typical Operating Circuit MAX1082, MAX1082A, MAX1082B, MAX1083, MAX1083A, MAX1083B: Typical Operating Circuit Enlarge+

Key Features

  • 4-Channel Single-Ended or 2-Channel
  • Pseudo-Differential Inputs
  • Internal Multiplexer and Track/Hold
  • Single-Supply Operation
    • +4.5V to +5.5V (MAX1082)
    • +2.7V to +3.6V (MAX1083)
  • Internal +2.5V Reference
  • 400kHz Sampling Rate (MAX1082)
  • Low Power: 2.5mA (400ksps)
    • 1.3mA (REDP)
    • 0.9mA (FASTPD)
    • 2µA (FULLPD)
  • SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
  • Software-Configurable Unipolar or Bipolar Inputs
  • 16-Pin TSSOP Package


  • Battery-Powered Applications
  • Data Acquisition
  • Medical Instruments
  • Pen Digitizers
  • Portable Data Logging
  • Process Control

See parametric specs for Precision ADCs (< 5Msps) (434)

Part NumberResolution
Input ChannelsConv. Rate
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
External VREF
External VREF
Unipolar VIN
Bipolar VIN
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1082 104400SARSPIBoth2.515.52.51.2560-701
$2.26 @1k
MAX1083 3003.6
$3.68 @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.
Request Reliability Report for: MAX1083A  MAX1083B 
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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