MAX544, MAX545

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

Single, Serial, Voltage-Output DAC in a SO Package
 Overview   Design Resources   Ordering Info   Related Products   User Comments (0)   All   

Status Explanations for product status codes

Active: In Production.

Description

The MAX544/MAX545 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) that operate from a single +5V supply. They provide 14-bit performance (±0.5LSB INL and ±0.9LSB DNL) over temperature without any adjustments. The DAC output is unbuffered, resulting in a low supply current of 0.3mA and a low offset error of 0.6mV.

The DAC output range is 0V to VREF. For bipolar operation, matched scaling resistors are provided in the MAX545 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing. The MAX545 also includes Kelvin-sense connections for the reference and analog ground pins to reduce layout sensitivity. A 16-bit serial word is used to load data into the DAC latch. The 10MHz, 3-wire serial interface is compatible with SPI™/QSPI™/MICROWIRE™, and it also interfaces directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to 0V (unipolar mode) when power is initially applied. The MAX544 is available in 8-pin plastic DIP and SO packages. The MAX545 is available in 14-pin plastic DIP and SO packages.

Data Sheet

Download this datasheet in PDF formatDownload Rev 3 (PDF, 280kB)
Send this datasheet to any email addressEmail

My Maxim: Not Logged In
By logging in to My Maxim you can subscribe to alerts for this data sheet.

Login | Register

Key Features

  • Full 14-Bit Performance Without Adjustments
  • +5V Single-Supply Operation
  • Low Power: 1.5mW
  • 1µs Settling Time
  • Unbuffered Voltage Output Directly Drives 60-kilohm Loads
  • SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • Power-On Reset Circuit Clears DAC Output to 0V (unipolar mode)
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Pin-Compatible 16-Bit Upgrades (MAX541/MAX542)
 

Applications/Uses

  • Automated Test Equipment (ATE)
  • Data Acquisition
  • Digital Gain and Offset Control
  • Industrial Process Controls
  • Instrumentation
   

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)		 Glitch Energy
(nVs)		 Oper. Temp.
(°C)		 Budgetary
Price
max min max typ max max typ typ See Notes
MAX544A  Zero-Scale 14 1 Voltage- Unbuffered Ext. 0.5 Serial - SPI 4.75 5.25 1 1 1.1 ±0.6 mV 1 10
-40 to +85
0 to +70
 $10.27 @1k
MAX544B  1 1
-40 to +85
0 to +70
 $7.90 @1k
MAX545A  0.5 245
-55 to +125
-40 to +85
0 to +70
 $10.27 @1k
MAX545B  1 245
-55 to +125
-40 to +85
0 to +70
 $7.90 @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.



Diagram

MAX544, MAX545: Functional Block Diagram
Functional Block Diagram

Didn't Find What You Need?

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
Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
Products Used With This
 
Document Ref.: 19-1088 Rev 3; 1999-12-01
This page last modified: 2009-08-24