Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC

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Active: In Production.


The MAX5841 is a quad, 10-bit voltage output, digital-to-analog converter (DAC) with an I²C*-compatible, 2-wire interface that operates at clock rates up to 400kHz. The device operates from a single 2.7V to 5.5V supply and draws only 230µA at VDD = 3.6V. A power-down mode decreases current consumption to less than 1µA. The MAX5841 features three software-selectable power-down output impedances: 100kΩ , 1kΩ , and high impedance. Other features include internal precision Rail-to-Rail output buffers and a power-on reset (POR) circuit that powers up the DAC in the 100kΩ power-down mode.

The MAX5841 features a double-buffered I²C-compatible serial interface that allows multiple devices to share a single bus. All logic inputs are CMOS-logic compatible and buffered with Schmitt triggers, allowing direct interfacing to optocoupled and transformer-isolated interfaces. The MAX5841 minimizes digital noise feedthrough by disconnecting the clock (SCL) signal from the rest of the device when an address mismatch is detected.

The MAX5841 is specified over the extended temperature range of -40°C to +85°C and is available in a miniature 10-pin µMAX® package. Refer to the MAX5842 data sheet for the 12-bit version.

Data Sheet

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Key Features

  • Ultra-Low Supply Current
    • 230µA at VDD = 3.6V
    • 280µA at VDD = 5.5V
  • 300nA Low-Power Power-Down Mode
  • Single 2.7V to 5.5V Supply Voltage
  • Fast 400kHz I²C-Compatible 2-Wire Serial Interface
  • Schmitt-Trigger Inputs for Direct Interfacing to Optocouplers
  • Rail-to-Rail Output Buffer Amplifiers
  • Three Software-Selectable Power-Down Output Impedances
    • 100kΩ, 1kΩ, and High Impedance
  • Read-Back Mode for Bus and Data Checking
  • Power-On Reset to Zero
  • 10-Pin µMAX Package


  • Automated Test Equipment (ATE)
  • Battery-Powered Applications
  • Digital Gain and Offset Control
  • Low-Cost Instrumentation
  • Programmable Attenuators
  • Programmable Voltage and Current Sources
  • VCO/Varactor Diode Control

Key Specifications:

Precision DACs
Part Number Resolution
Channels Output Type Reference INL
Interface Supply Range
Supply Range
Settling Time
Oper. Temp.
max min max max typ See Notes
MAX5841  10 4 Voltage- Buffered Ext. 4 Serial - I2C 2.7 5.5 0.42 4 -40 to +85 $5.30 @1k
See All Precision DACs (278)

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.


MAX5841: Typical Operating Circuit
Typical Operating Circuit

More Information

New Product Press Release   2002-02-27 ]

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Document Ref.: 19-1777 Rev 0; 2002-02-21
This page last modified: 2007-07-30