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+3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs

Ultra Small 14-Bit DAC in a µMAX Package Offers Low-Power Solution

Product Details

Key Features

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 14
# Channels 1
Interface Serial - SPI
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.2
Settling Time (µs) (typ) 1
Package/Pins UMAX/8
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
7.88
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 14
# Channels 1
Interface Serial - SPI
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.2
Settling Time (µs) (typ) 1
Package/Pins UMAX/8
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
7.88

Key Features

  • Ultra-Small (3mm x 5mm) 8-Pin µMAX Package
  • Low 120µA Supply Current
  • Fast 1µs Settling Time
  • 25MHz SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • VREF Range Extends to VDD
  • +5V (MAX5141/MAX5142) or +3V (MAX5143/MAX5144) Single-Supply Operation
  • Full 14-Bit Performance Without Adjustments
  • Unbuffered Voltage Output Directly Drives 60kΩ Loads
  • Power-On Reset Circuit Clears DAC Output to Code 0 (MAX5141/MAX5143) or Code 8192 (MAX5142/MAX5144)
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Asynchronous Active-Low CLR

Applications/Uses

  • Automated Test Equipment (ATE)
  • Data Acquisition
  • High-Resolution and Gain Adjustment
  • Industrial Process Controls

Description

The MAX5141—MAX5144 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) in tiny µMAX® packages, 50% smaller than comparable DACs in an 8-pin SO. They operate from low +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142) single supplies. They provide 14-bit performance (±1 LSB INL and DNL) over temperature without any adjustments. The DAC output is unbuffered, resulting in a low supply current of 120µA and a low offset error of 2 LSBs.

The DAC output range is 0V to VREF. For bipolar operation, matched scaling resistors are provided in the MAX5142/MAX5144 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing. A 16-bit serial word is used to load data into the DAC latch. The 25MHz, 3-wire serial interface is compatible with SPI™/QSPI™/MICROWIRE™, and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144) when power is initially applied. A logic low on active-low CLR asynchronously clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144), independent of the serial interface. The MAX5141/MAX5143 are available in 8-pin µMAX packages and the MAX5142/MAX5144 are available in 10-pin µMAX packages.

Simplified Block Diagram

MAX5141, MAX5142, MAX5143, MAX5144: Functional Block Diagrams MAX5141, MAX5142, MAX5143, MAX5144: Functional Block Diagrams Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .