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Dual, 8-Bit, Voltage-Output Serial DAC in 8-Pin SO Package

Dual, Serial, Voltage-Output DAC

Product Details

Key Features

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 8
# Channels 2
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1.5
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 2.8
Settling Time (µs) (typ) 70
Package/Pins PDIP/8
SOIC (N)/8
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
4.56
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 8
# Channels 2
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1.5
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 2.8
Settling Time (µs) (typ) 70
Package/Pins PDIP/8
SOIC (N)/8
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
4.56

Key Features

  • Operates from a Single +2.7V to +5.5V Supply
  • Dual Buffered Voltage Output
  • Low Power Consumption:
    • 1mA Operating Current
    • < 1µA Shutdown Current
  • Independently Programmable Shutdown Mode
  • 5MHz, 3-Wire Serial Interface
  • SPI, QSPI, and Microwire Compatible
  • Space-Saving 8-Pin SO Package

Applications/Uses

  • Digital Gain and Offset Control
  • Power-Amp Bias Control
  • Programmable Current Sources
  • Programmable Voltage Sources
  • VCO Tuning

Description

The MAX522 contains two 8-bit, buffered, voltage-output digital-to-analog converters (DAC A and DAC B) in small 8-pin SO and DIP packages. DAC A's buffer can source and sink 5mA, and DAC B's output can source and sink 500µA, both to within 0.5V of ground and VDD. The MAX522 operates with a single +2.7V to +5.5V supply.

The device utilizes a 3-wire serial interface, which operates at clock rates up to 5MHz and is compatible with SPI™, QSPI™, and Microwire™ interface standards. The serial input shift register is 16 bits long and consists of eight bits of DAC input data and eight bits for DAC selection and shutdown control. DAC registers can be loaded independently or in parallel at the positive edge of active-low CS.

The MAX522's ultra-low power consumption and small 8-pin SO package make it ideal for portable and battery-powered applications. Supply current is less than 1mA and drops below 1µA in shutdown mode. In addition, the reference input is disconnected from the REF pin during shutdown, further reducing the system's total power consumption. The software format is compatible with the MAX512/MAX513 triple 8-bit DACs.

Simplified Block Diagram

MAX522: Functional Diagram MAX522: Functional Diagram 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.