+3V, 400ksps, 4/8 Channel, 8-Bit ADCs with 1µA Power Down

Low-Power +3V 8-Bit ADCs with Parallel Interface

Please check latest availability status for a specific part variant.


The MAX113/MAX117 are microprocessor-compatible, 8-bit, 4-channel and 8-channel analog-to-digital converters (ADCs). They operate from a single +3V supply and use a half-flash technique to achieve a 1.8µs conversion time (400ksps). A power-down pin (active-low PWRDN) reduces current consumption to 1µA typical. The devices return from power-down mode to normal operating mode in less than 900ns, allowing large supply-current reductions in Burst Mode® applications. (In Burst Mode, the ADC wakes up from a low-power state at specified intervals to sample the analog input signals.) Both converters include a track/hold, enabling the ADC to digitize fast analog signals.

Microprocessor (µP) interfaces are simplified because the ADC can appear as a memory location or I/O port without external interface logic. The data outputs use latched, three-state buffer circuitry for direct connection to an 8-bit parallel µP data bus or system input port. The MAX113/MAX117 input/reference configuration enables ratiometric operation.

The 4-channel MAX113 is available in a 24-pin DIP or SSOP. The 8-channel MAX117 is available in a 28-pin DIP or SSOP. For +5V applications, refer to the MAX114/MAX118 data sheet.
MAX113, MAX117: Functional Diagram MAX113, MAX117: Functional Diagram Enlarge+

Key Features

  • +3.0V to +3.6V Single-Supply Operation
  • 4 (MAX113) or 8 (MAX117) Analog Input Channels
  • Low Power:
    • 1.5mA (operating mode)
    • 1µA (power-down mode)
  • Total Unadjusted Error < 1LSB
  • Fast Conversion Time: 1.8µs per Channel
  • No External Clock Required
  • Internal Track/Hold
  • Ratiometric Reference Inputs
  • Internally Connected 8th Channel Monitors Reference Voltage (MAX117)


  • Battery-Powered Applications
  • Communication Systems
  • Portable Equipment
  • Remote Data Acquisition
  • System-Health Monitoring

See parametric specs for Precision ADCs (< 5Msps) (437)

Part NumberResolution
Input Chan.Conv. Rate
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
External VREF
Unipolar VIN
ADCmaxminmaxmaxSee Notes
MAX113 84400FlashµP/8S.E. Only03.63.645-501
$4.87 @1k
MAX117 83370
$5.41 @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.

MAX117EVKIT: Evaluation Kit for the MAX117 and MAX118
Request Reliability Report for: MAX113 
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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Related Resources

Type ID Title
Evaluation Board1467MAX117EVKIT Evaluation Kit for the MAX117 and MAX118