MX7225, MX7226

CMOS, Quad, 8-Bit DAC with Voltage-Output Amplifier Latches

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Status Explanations for product status codes

Active: In Production.

Description

Maxim's MX7225 and MX7226 each contain four 8-bit voltage-output digital-to-analog converters (DACs). They include output buffer amplifiers and input logic for simple microprocessor and TTL/CMOS interfaces. 8-bit performance is achieved over the full operating temperature range without external trimming.

The MX7225 contains double-buffered logic inputs that allow all analog outputs to be simultaneously updated using one control signal. There are also four separate reference inputs so that the range of each DAC can be independently set. The MX7226 has separate inputs registers for each of its four DACS. Data is transferred into an input register from a common 8-bit TTL/CMOS-compatible input port. Address inputs A0 and A1 determines which DAC is loaded when WR goes low. All DACs share a common reference input. For -7225 and -7226 designs utilizing a 5V supply, see the MAX505 and MAX506 data sheet.

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 7.6MB)
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Key Features

  • Buffered Voltage Output
  • Double-Buffered Inputs (MX7225)
  • Microprocessor and TTL/CMOS Compatible
  • Operate from Single or Dual Supplies
  • Require No External Adjustments
 

Applications/Uses

  • Arbitrary Function Generators
  • Automatic Test Equipment
  • Digital Offset/Gain Adjustment
  • Industrial Process Control
  • Microprocessor-Controlled Calibration
  • Minimum Component Count Analog Systems
   

Key Specifications:

Precision DACs (4-12 Bits)
Part Number 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
MX7225  8 4 Voltage- Buffered Ext. 0.5 Parallel - Full Word -5.5 16.5
-55 to +125
-40 to +85
0 to +70
$14.12 @1k
MX7226  1 $11.78 @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

MX7225, MX7226: Functional Block Diagram
Functional Block Diagram

Notes and Comments

Plug-in replacements for AD7225/AD7226

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Overview

 

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Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
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Document Ref.: 19-0932 Rev 1; 1993-04-01
This page last modified: 2008-09-26