MX7837, MX7847

Complete, Dual, 12-Bit Multiplying DAC with 8-Bit Bus Interface

Dual, Parallel, Voltage-Output DACs in a SO Package
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Status Explanations for product status codes

Active: In Production.

Description

The MX7837/MX7847 are dual, 12-bit, multiplying, voltage-output digital-to-analog converters (DACs). Each DAC has an output amplifier and a feedback resistor. The output amplifier is capable of developing ±10V across a 2kΩ load. The amplifier feedback resistor is internally connected to VOUT on the MX7847. No external trims are required to achieve full 12-bit performance over the entire operating temperature range.

The MX7847 has a 12-bit parallel data input, whereas the MX7837 operates with a double-buffered 8-bit-bus interface that loads data in two write operations. All logic signals are level triggered and are TTL and CMOS compatible. Fast timing specifications make these DACs compatible with most microprocessors.

Data Sheet

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Key Features

  • Two 12-Bit Multiplying DACs with Buffered Voltage Output
  • Specified with ±12V or ±15V Supplies
  • No External Adjustments Required
  • Fast Timing Specifications
  • 24-Pin DIP and SO Packages
  • 12-Bit Parallel Interface (MX7847)
  • 8-Bit + 4-Bit Interface (MX7837)
 

Applications/Uses

  • Digital Gain and Offset Control
  • Industrial Process Controls
  • Machine- and Motion-Control 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)		 ICC
(mA)		 Offset Error Settling Time
(µs)		 Glitch Energy
(nVs)		 Oper. Temp.
(°C)		 Budgetary
Price
max max typ max max typ typ See Notes
MX7837  12 2 Voltage- Buffered Ext. 1 Parallel - Byte Wide 16.5 2 3 10 ±5 mV 4 60
-55 to +125
-40 to +85
0 to +70
 $10.97 @1k
MX7847  Parallel - Full Word 4 $12.44 @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 Resolution
(bits)		 Channels Output Type Reference INL
(±LSB)		 Interface Supply Range
(V)		 Oper. Temp.
(°C)		 Budgetary
Price
max max See Notes
MX7837  12 2 Voltage- Buffered Ext. 1 Parallel - Byte Wide 16.5
-55 to +125
-40 to +85
0 to +70
 $10.97 @1k
MX7847  Parallel - Full Word $12.44 @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

MX7837, MX7847: Typical Operating Circuits
Typical Operating Circuits

Notes and Comments

Plug-in replacements for AD7837/AD7847

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Overview

  

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Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
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Document Ref.: 19-0158 Rev 0; 1993-07-01
This page last modified: 2007-05-30