Octal, Serial, 8-Bit DAC with Output Buffers

Please check latest availability status for a specific part variant.


The MAX528/MAX529 are monolithic devices combining an octal 8-bit, digital-to-analog converter (DAC), 8 output buffers, and serial-interface logic in space saving shrink small outline package (SSOP). The MAX528 operates from a single supply up to 15V or from split supplies totaling up to 20V, including +5V/-15V, +12V/-5V, and +15V/-5V. The MAX529 operates from a single +5V supply or from ±5V split supplies. For both parts, a shutdown pin reduces current consumption to under 50µA, which retaining all internal DAC data.

Three output modes are serially programmable for each pair of 8 analog outputs. An unbuffered mode connects the internal R-2R DAC network directly to the output pin, reducing power consumption and avoiding the buffer's DC errors. A full-buffered mode inserts a buffer between the R-2R network and the output, providing +5mA/-2mA output drive. Half-buffered output mode is similar, but uses less power while still providing up to 15mA of output drive in a unipolar output configuration. Serial data can be "daisy-chained" from one device to another. On power-up, all data bits are reset to 0, and analog outputs enter the unbuffered mode.
MAX528, MAX529: Functional Block Diagram MAX528, MAX529: Functional Block Diagram Enlarge+

Key Features

  • Now Available in Space-Saving SSOP
  • 8 Buffered Noninverting Outputs
  • Buffer Disable Control
  • 2 Pairs of Differential Reference Inputs
  • 3-Wire Serial Interface
  • Single +5V or Dual ±5V Supply Operation (MAX529)
  • Low-Power Shutdown
  • Stable Driving Output Capacitance Loads


  • Digital Calibration
  • Digital Gain and Offset Adjustment
  • Microcontrolled Analog Outputs
  • Multiply Trim Pot Replacement
Part NumberResolution
ChannelsOutput TypeReferenceINL
InterfaceSupply Range
Supply Range
Settling Time
Package/PinsOper. Temp.
maxminmaxmaxtypSee Notes
MAX528 88Voltage- BufferedExt.1Serial - SPI10.816.51.51
SOIC (W)/24
-55 to +125
-40 to +85
0 to +70
$7.07 @1k
MAX529 4.755.25
SOIC (W)/24
$5.26 @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: MAX528.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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