MAX525

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

+5V DAC with Configurable Output Allows Flexible Output Swings
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Status Explanations for product status codes

Active: In Production.

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.

Data Sheet

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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
   

Key Specifications:

Precision DACs (12-18 Bits)
Part Number Power-On Reset State Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Supply Range
(V)
Voltage Supplies ISHUTDN
(µA)
ICC
(mA)
Offset Error Settling Time
(µs)
Oper. Temp.
(°C)
Budgetary
Price
max min max typ max max typ See Notes
MAX525A  Zero-Scale 12 4 Voltage- Buffered Ext. 0.5 Serial - SPI 4.5 5.5 1 20 0.98 ±6 mV 12
-55 to +125
-40 to +85
0 to +70
$15.54 @1k
MAX525B  1 $11.95 @1k
See All Precision DACs (12-18 Bits) (257)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Precision DACs (4-12 Bits)
Part Number Power-On Reset State Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Supply Range
(V)
Oper. Temp.
(°C)
Budgetary
Price
max min max See Notes
MAX525A  Zero-Scale 12 4 Voltage- Buffered Ext. 0.5 Serial - SPI 4.5 5.5
-55 to +125
-40 to +85
0 to +70
$15.54 @1k
MAX525B  1 $11.95 @1k
See All Precision DACs (4-12 Bits) (287)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX525: Functional Block Diagram
Functional Block Diagram

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Information Index

Overview

 

Design Resources

 

Ordering Info

 

Related Products

 
Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
Technical Documents
Evaluation Kits
Reliability Reports
Software/Models
  Price and Availability
Samples
Buy Online
Package Information
Lead-Free Information
  Similar Products by Function
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Document Ref.: 19-1098 Rev 2; 2002-12-13
This page last modified: 2008-09-19