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Low-Power, Quad, 12-Bit Voltage-Output DAC with Serial Interface

+5V DAC with Configurable Output Allows Flexible Output Swings

Product Details

Key Features

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 12
# Channels 4
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.98
Settling Time (µs) (typ) 12
Package/Pins PDIP/20
SSOP/20
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
18.06
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 12
# Channels 4
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.98
Settling Time (µs) (typ) 12
Package/Pins PDIP/20
SSOP/20
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
18.06

Key Features

  • Four 12-Bit DACs with Configurable Output Amplifiers
  • +5V Single-Supply Operation
  • Low Supply Current: 0.85mA Normal Operation 10µA Shutdown Mode
  • Available in 20-Pin SSOP
  • Power-On Reset Clears all Registers and DACs to Zero
  • Capable of Recalling Last State Prior to Shutdown
  • SPI/QSPI and MICROWIRE Compatible
  • Simultaneous or Independent Control of DACs through 3-Wire Serial Interface
  • User-Programmable Digital Output

Applications/Uses

  • Automated Test Equipment (ATE)
  • Digital Offset and Gain Adjustments
  • Industrial Process Controls
  • Microprocessor-Controlled Systems
  • Motion Control
  • Remote Industrial Controls

Description

The MAX525 combines four low-power, voltage-output, 12-bit digital-to-analog converters (DACs) and four precision output amplifiers in a space-saving, 20-pin package. In addition to the four voltage outputs, each amplifier's negative input is also available to the user. This facilitates specific gain configurations, remote sensing, and high output drive capacity, making the MAX525 ideal for industrial-process-control applications. Other features include software shutdown, hardware shutdown lockout, an active-low reset which clears all registers and DACs to zero, a user-programmable logic output, and a serial-data output.

Each DAC has a double-buffered input organized as an input register followed by a DAC register. A 16-bit serial word loads data into each input/DAC register. The serial interface is compatible with SPI™/QSPI™ and MICROWIRE™. It allows the input and DAC registers to be updated independently or simultaneously with a single software command. The DAC registers can be simultaneously updated through the 3-wire serial interface. All logic inputs are TTL/CMOS-logic compatible.

Simplified Block Diagram

MAX525: Functional Block Diagram MAX525: Functional Block 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 .