Overview

Features and Benefits

  • +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)

Product Details

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.

Applications

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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Product Recommendations

MAX113 Companion Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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