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DAC8229:  Dual 8-Bit, Voltage Output, Multiplying CMOS D/A

Product Details


Newer Alternatives:
  • AD5302 2.5 V to 5.5 V, 230 µA, Dual Rail-to-Rail Voltage Output 8-Bit DAC in a 10-Lead MicroSOIC Package

The DAC-8229 is a dual 8-bit, voltage output, multiplying CMOS D/A converter. Its reference iput accepts a ±2.5 V signal, inverts and delivers it to the output with an internal amplifier. It can also accept - 10 V at VREF with a corresponding +10 V output ( the maximum positive input signal that it can accept is +2.5 V).

The DAC-8229 was designed to operate with dual supplies; however, it can be operated with a single supply by connecting VSS, AGND A, and AGND B to ground. Its operating characteristics will then be similar to that of the DAC-8228 (whose pin-out allows it to drop into the AD/PM-7528 and AD/PM-7628 sockets).

An internal regulator provides TTL logic compatibility and fast microprocessor interface timing over the full VDD range. Also, each DAC input latch is addressable for easy microprocessor interfacing.

The DAC-8229 dissipates less than 109 mW in the space-saving 20-pin 0.3" DIP or the 20-lead So surface-mount package. Its compact size, low power, and economical cost per channel, makes it attractive for applications requiring multiple D/A converters without sacrificing circuit-board space. Reduced parts count also improves system reliability.

PMI's advanced oxide-isolated, silicon-gate CMOS process, coupled with PMI's highly-stable thin-film R-2R resistor ladder, offers superior matching and temperature tracking between DACs.

The DAC-8229 offers cerdip or epoxy packaged devices in the extended industrial temperature range of -40°C to +85°C.

FEATURES and BENEFITS

  • Two 8-Bit DACs in A Single Chip
  • Adjustment-Free Internal CMOS Amplifiers
  • Single or Dual Supply Operation
  • TTL Compatible Over Full VDD Range
  • 5 Microsecond Settling Time
  • Fast Interfacing Timing......TWR = 50 ns
  • Improved Resistance to ESD
  • Fits AD/PM-7528 and AD/PM-7628 Sockets
  • Available in Small Outline Package
  • -40°C to +85°C for the Extended Industrial Temperature Range
  • Available in Die Form

Functional Block Diagram for DAC8229

Similar Products

  • AD5302 2.5 V to 5.5 V, 230 µA, Dual Rail-to-Rail Voltage Output 8-Bit DAC in a 10-Lead MicroSOIC Package
  • AD5722R Complete, Dual, 12-Bit, Unipolar/Bipolar, Voltage Output DAC with Internal Reference
  • AD5312 2.5 V to 5.5 V, 230 µA, Dual Rail-to-Rail Voltage Output 10-Bit DAC

Documentation

Title Content Type File Type
DAC8229: Dual 8-Bit CMOS D/A Converter with Voltage Output Data Sheet (Rev A, 10/2002) (pdf, 500 kB) Data Sheets PDF
Digital to Analog Converters ICs Solutions Bulletin  (pdf) Solutions Bulletins PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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