16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs

Please check latest availability status for a specific part variant.


The MAX1415/MAX1416 low-power, 2-channel, serial-output analog-to-digital converters (ADCs) use a sigma-delta modulator with a digital filter to achieve 16-bit resolution with no missing codes. These ADCs are pin-compatible upgrades to the MX7705/AD7705. The MAX1415/MAX1416 feature an internal oscillator (1MHz or 2.4576MHz), an on-chip input buffer, and a programmable gain amplifier (PGA). The devices offer an SPI™-/QSPI™-/MICROWIRE™-compatible serial interface.

The MAX1415/MAX1416 are available in 16-pin PDIP, SO, and TSSOP packages.
MAX1415, MAX1416: Functional Diagram MAX1415, MAX1416: Functional Diagram Enlarge+

Key Features

  • Improve Measurement Quality with Excellent DC Accuracy
    • 16-Bit Sigma-Delta ADC with Two Fully-Differential Input Channels
    • 0.0015% INL (max) with No Missing Codes
  • Minimize Power Consumption with Low-Power Dissipation
    • 1.2mW (max) 3V supply
    • 2μA (typ) Power-Down Current
  • Lower System Cost with Integrated Functionality
    • PGA with 1 to 128 Programmable Gain
    • Optional Input Buffers
    • > 98dB 50Hz/60Hz Rejection
  • Increase System Accuracy with Built-in Self Calibration
    • On-Demand Offset and Gain Self-Calibration and System Calibration
    • User-Programmable Offset and Gain Registers
  • Flexible Single Supply Options
    • 2.7V to 3.6V (MAX1415)
    • 4.75V to 5.25V (MAX1416)
  • Pin Compatible Upgrades for MX7705/AD7705


  • Flow and Gas Meters
  • Industrial Instruments
  • Loop-Powered Systems
  • Medical Instrumentation
  • Pressure Transducers
  • RTD Measurements
  • Strain-Gauge Measurements
  • Thermocouple Measurements
  • Weigh Scales

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

Part NumberResolution
Input ChannelsConv. Rate
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
External VREF
Unipolar VIN
Bipolar VIN
ADCmaxminmaxmaxmaxSee Notes
MAX1415 1620.5Sigma-DeltaSPIDiff. Only11.751.2251.2250.98304
SOIC (W)/16
$4.87 @1k
SOIC (W)/16
$4.56 @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.

MAX1416EVC16: Evaluation Kit/Evaluation System for the MAX1416
MAX1416EVKIT: Evaluation Kit/Evaluation System for the MAX1416
Request Reliability Report for: MAX1415 
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.

Quality Management System >
Environmental Management System >


Related Resources