MX7538

CMOS, µP-Compatible, 14-Bit DAC

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Status Explanations for product status codes

Active: In Production.

Description

The Maxim MX7538 is a high performance monolithic 14-bit multiplying digital-to-analog converter (DAC). The MX7538 operate with a 14-bit data bus using standard chip select and memory write logic. A Load DAC (LDAC) signal is provided where double buffering is required, such as in systems with multiple DACs. If the LDAC signal is kept low, the DAC register becomes transparent. The MX7538 is optimized for unipolar applications, but can be operated as a bipolar DAC with additional external components.

Full accuracy is maintained over the operating temperature range through the use of wafer-level later-trimmed, thin-film resistors and temperature compensated NMOS switches. In addition, all digital inputs are compatible with both TTL, 74HC and 5V CMOS logic levels. The MX7538 is available in the narrow (0.3") 24-lead DIP and Wide SO (0.3") packages.

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 4MB)
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Key Features

  • 14-Bit Monotonic Over Full Temperature Range
  • 4-Quadrant Multiplication
  • µP Compatible Double Buffered Inputs
  • Low Power Consumption
  • TTL, 74HC and 5V CMOS Compatible
  • Low Output Leakage Over Temperature Range
  • Small 24-Lead 0.3" DIP or Wide SO Packages
 

Applications/Uses

  • µP-Controlled Calibration Circuitry
  • Automatic Test Equipment
  • Digital Audio Synthesis
  • Digitally Controlled Filters
  • Machine and Motion Control Systems
  • Programmable Gain Amplifiers
  • Programmable Power Supplies
   

Key Specifications:

Precision DACs (12-18 Bits)
Part Number Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Supply Range
(V)
Voltage Supplies ISHUTDN
(µA)
ICC
(mA)
Offset Error Full-Scale Error Settling Time
(µs)
Glitch Energy
(nVs)
Oper. Temp.
(°C)
Budgetary
Price
max min max typ max max max typ typ See Notes
MX7538  14 1 Current- Unbuffered Ext. 2 Parallel - Full Word 11.4 15.75 1 10 4 ±5 LSB ±0.061 %FSR 0.8 20
-55 to +125
-40 to +85
-20 to +85
0 to +70
$10.13 @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

MX7538: Functional Block Diagram
Functional Block Diagram

Notes and Comments

Plug-in replacement for AD7538

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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.: 19-2307 Rev 1; 1995-07-01
This page last modified: 2008-09-05