Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs

Industry's Smallest 16-Bit DACs with Pin-Programmable Zero or Midscale Power-Up

Please check latest availability status for a specific part variant.


The MAX5138/MAX5139 are a family of single-channel pin-compatible and software-compatible 16-bit and 12-bit DACs. The MAX5138/MAX5139 are low-power, 16-bit/12-bit, buffered voltage-output, high-linearity DACs. They use a precision internal reference or a precision external reference for rail-to-rail operation. The MAX5138/MAX5139 accept a wide +2.7V to +5.25V supply-voltage range to accommodate most low-power and low-voltage applications. These devices accept a 3-wire SPI-/QSPI™-/MICROWIRE®-/DSP-compatible serial interface to save board space and reduce the complexity of optically isolated and transformer-isolated applications. The digital interface's double-buffered hardware and software active-low LDAC provide simultaneous output update. The serial interface features an active-low READY output for easy daisy-chaining of several MAX5138/MAX5139 devices and/or other compatible devices. The MAX5138/MAX5139 include a hardware input to reset the DAC outputs to zero or midscale upon power-up or reset, providing additional safety for applications that drive valves or other transducers that need to be off during power-up. The high linearity of the DACs makes these devices ideal for precision control and instrumentation applications. The MAX5138/MAX5139 are available in an ultra-small (3mm x 3mm), 16-pin TQFN package and are specified over the -40°C to +105°C extended industrial temperature range.

MAX5138, MAX5139: Typical Operating Circuit MAX5138, MAX5139: Typical Operating Circuit Enlarge+

Key Features

  • 16-/12-Bit Resolution in a 3mm x 3mm, 16-Pin TQFN Package
  • Hardware-Selectable on Power-Up or Reset-to-Zero/Midscale DAC Output
  • Double-Buffered Input Registers
  • Active-Low LDAC Asynchronously Updates DAC Output
  • Active-Low READY Facilitates Daisy Chaining
  • High-Performance 10ppm/°C Internal Reference
  • Guaranteed Monotonic Over All Operating Conditions
  • Wide +2.7V to +5.25V Supply Range
  • Rail-to-Rail Buffered Output Operation
  • Low Gain Error (Less Than ±0.5% FS) and Offset (Less Than ±10mV)
  • 30MHz 3-Wire SPI-/QSPI-/MICROWIRE-/DSP-Compatible Serial Interface
  • CMOS-Compatible Inputs with Hysteresis
  • Low Power Consumption (ISHDN = 2µA max)


  • Automatic Test Equipment
  • Automatic Tuning
  • Communication Systems
  • Data Acquisition
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power-Amplifier Control
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources

See parametric specs for Precision DACs (247)

Part NumberResolution
# ChannelsOutput TypeReferenceINL
InterfaceSupply Range
Supply Range
Settling Time
Package/PinsOper. Temp.
(max)(min)(max)(max)(typ)(See Notes)
MAX5138 161Voltage- BufferedInt./Ext.11Serial - SPI2.75.251.65
-40 to +105$3.36 @1k
MAX5139 121
$3.34 @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.

MAX5138EVKIT: Evaluation Kit for the MAX5138 and MAX5139
Product Reliability Reports: MAX5138.pdf 
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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