MX7245, MX7248

Complete, 12-Bit, Voltage-Output Multiplying DAC

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Status Explanations for product status codes

Active: In Production.

Description

The MX7245/MX7248 are complete, 12-bit digital-to-analog converters (DACs) that include internal voltage reference and a voltage-output amplifier. The MX7245/MX7248 are pin and electrically compatible with Analog Devices' AD7245/AD7248. The MX7245/MX7248 have double-buffered logic interfaces that are easily interfaced to microprocessors (µPs). Data is transferred into the input register from a 12-bit-wide data bus (MX7245) for 16-bit µPs, or in a tight-justified (8+4)-bit format (MX7248) for 8- and 16-bit µPs. All logic signals are level triggered and are TTL and CMOS compatible. The timing specifications ensure compatibility with common µPs.

The DACs are specified and tested for both dual- and single-supply operation. Usable supplies range from single +12V to dual ±15V. Internal gain-setting resistors allow three output voltage ranges: 0V to +5V and 0V to +10V can be generated using either single or dual supplies. With dual supplies, an additional output range of ±5V is available. The output amplifier drives 2kΩ loads to +10V. See MAX507/MAX508 for detailed description.

Data Sheet

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Key Features

  • 12-Bit Voltage Output
  • Low-Noise, Buried-Zener Voltage Reference
  • Fast Logic Interface (80ns Active-Low WR Pulse)
  • Operate from Single or Dual Supplies
  • 8-/16-Bit Microprocessor-Bus Compatible
  • Available in DIP and PLCC Packages
  • Pin and Electrically Compatible with AD7245/AD7248
 

Applications/Uses

  • Arbitrary Function Generators
  • Automated Calibration
  • Automatic Test Equipment
  • Digital Offset and Gain Adjustment
  • Industrial Control
  • Machine and Motion Control
  • Minimum Component Count Analog Systems
   

Key Specifications:

Precision DACs (12-18 Bits)
Part Number Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Voltage Supplies ISHUTDN
(µA)
Offset Error Full-Scale Error Glitch Energy
(nVs)
Oper. Temp.
(°C)
Budgetary
Price
max max typ max max typ See Notes
MX7245  12 1 Voltage- Buffered Int. 1 Parallel - Full Word 15.75 2 1 ±5 LSB ±0.6 %FSR 30
-55 to +125
-40 to +85
0 to +70
$9.01 @1k
MX7248  Parallel - Byte Wide 3 -
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 Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Oper. Temp.
(°C)
Budgetary
Price
max max See Notes
MX7245  12 1 Voltage- Buffered Int. 1 Parallel - Full Word 15.75
-55 to +125
-40 to +85
0 to +70
$9.01 @1k
MX7248  Parallel - Byte Wide -
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

MX7245, MX7248: Functional Block Diagram
Functional Block Diagram

Notes and Comments

Plug-in replacements for AD7245/AD7248

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Description
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Applications/Uses
Key Specifications
Diagram
Notes and Comments
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Document Ref.: 19-3987 Rev 0; 1991-11-01
This page last modified: 2008-09-19