Quad, 8-Bit DAC with Rail-to-Rail Outputs

See MAX5100 for Single-Supply New Designs

Please check latest availability status for a specific part variant.


The MAX505 and MAX506 are CMOS, quad, 8-bit voltage-output digital-to-analog converters (DACs). The parts operate with a single +5V supply or a dual ±5V supplies. Internal, precision output buffers swing rail-to-rail. The reference input range includes both supply rails. Offset, gain, and linearity are factory calibrated to provide 1 LSB total unadjusted error (TUE) over the full operating temperature range.

The MAX505 contains double-buffered logic inputs, which allow all analog outputs to be simultaneously updated using the asynchronous load DAC (active-low LDAC) control signal. The MAX505 also has four separate reference inputs, allowing each DAC’s full-scale range to be independently set. The MAX506 has separate inputs latches for each of its four DACs. Data is transferred to the input latches from a common 8-bit input port. The DACs are individually selected through address inputs A0 and A1, and updated by bringing active-low WR low. All MAX506 DACs share a common reference input. All logic inputs are TTL and +5V CMOS compatible.
MAX505, MAX506: Functional Block Diagram MAX505, MAX506: Functional Block Diagram Enlarge+

Key Features

  • Operate from Single +5V Supply or Dual ±5V Supplies
  • Output Buffer Amplifiers Swing Rail-to-Rail
  • Reference Input Range Includes Both Supply Rails
  • Factory-Calibrated for 1 LSB TUE
  • Double-Buffered Digital Inputs (MAX505)
  • Microprocessor and TTL/CMOS Compatible
  • Require No External Adjustments
  • Pin-Compatible Upgrades to MX7225/MX7226
  • Now Available in Tiny SSOP Package


  • Arbitrary Function Generators
  • Automatic Test Equipment
  • Digital Offset/Gain Adjustment
  • Industrial Process Control
  • Minimum Component Count Analog Systems
  • Programmable Attenuators
Part NumberResolution
ChannelsOutput TypeReferenceINL
InterfaceSupply Range
Supply Range
Settling Time
Package/PinsOper. Temp.
maxminmaxmaxtypSee Notes
MAX505 84Voltage- BufferedExt.
Parallel - Full Word4.55.5126
SOIC (W)/24
-55 to +125
-40 to +85
0 to +70
$8.45 @1k
SOIC (W)/20
$8.25 @1k
See All Precision DACs (249)
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.

Quality and Environmental Data

Product Reliability Reports: MAX505.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

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 >


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