AD7549 12-Bit, Dual, Multiplying, IOUT D/A Converter

The AD7549 is a monolithic dual, 12-bit, current output D/A converter. It is packaged in both 0.3" wide 20-pin DIPs and in 20-terminal surface mount packages. Both DACs provide four quadrant multiplication capabilities with a separate reference input and feedback resistor for each DAC. The monolithic construction ensures excellent thermal tracking and gain error tracking between the two DACs. The DACs in the AD7549 are each loaded in three 4-bit nibbles. The control logic is designed for easy processor interfacing. Input and DAC register loading is accomplished using address lines A0, A1, A2, and CS, WR lines. A logic high level on the CLR input clears all registers. Both DACs may be simultaneously update using the UPD input. APPLICATIONS Programmable Filters Automatic test equipment Microcomputer based process control Audio systems Programmable power supplies Synchro Applications

The AD7549 is a monolithic dual, 12-bit, current output D/A converter. It is packaged in both 0.3" wide 20-pin DIPs and in 20-terminal surface mount packages. Both DACs provide four quadrant multiplication capabilities with a separate reference input and feedback resistor for each DAC. The monolithic construction ensures excellent thermal tracking and gain error tracking between the two DACs.

The DACs in the AD7549 are each loaded in three 4-bit nibbles. The control logic is designed for easy processor interfacing. Input and DAC register loading is accomplished using address lines A0, A1, A2, and CS, WR lines. A logic high level on the CLR input clears all registers. Both DACs may be simultaneously update using the UPD input.

APPLICATIONS
  • Programmable Filters
  • Automatic test equipment
  • Microcomputer based process control
  • Audio systems
  • Programmable power supplies
  • Synchro Applications
Features and Benefits
  • Two Double Bufered 12-bit DACs
  • 4-Quadrant Multiplication
  • Low Gain Error (3 LSBs max)
  • DAC Ladder Resistance Matching: 1%
  • Space Saving Skinny DIP and Surface Mount Packages
  • Latch-Up Proof
  • Extended Temperature Range Operation
Digital to Analog Converters
Data Sheets
Documentnote
AD7549: LC2MOS Dual 12-Bit µP-Compatible DAC Scanned Data Sheet (Rev. A)PDF 495 kB
AD7549: Military Data Sheet
Application Notes
Documentnote
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0)PDF 246 kB
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1PDF 1295 kB
AN-326: Interfacing the AD7549 to the MCS-48 and MCS-51 Microcomputer FamiliesPDF 334 kB
AN-325: 12-Bit Analog I/O Port Uses AD7549 Dual 12-Bit DAC and 8051 MicrocomputerPDF 318 kB
AN-137: A Digitally Programmable Gain and Attenuation Amplifier DesignPDF 52 kB
AN-206: CMOS Multiplying DAC Based Panning Circuit Provides Almost Constant Output PowerPDF 142 kB
AN-209: 8th Order Programmable Low-Pass Analog Filter Using Dual 12-Bit CMOS Multiplying DACsPDF 401 kB
AN-225: 12-Bit Voltage-Output DACs for Single-Supply 5V and 12V SystemsPDF 237 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
5962-8876502RX ProductionCERDIP GLASS SEALOTH 18-55 to 125C157.65142.53N
AD7549BQ ProductionCERDIP GLASS SEALOTH 18-40 to 85C32.9829.7N
AD7549JN Production20 ld PDIPOTH 18-40 to 85C29.5424.79N
AD7549JNZ Production20 ld PDIPOTH 18-40 to 85C26.8522.54Y
AD7549JP Last Time Buy20 ld PLCCOTH 49-40 to 85C00N
AD7549JPZ Production20 ld PLCCOTH 49-40 to 85C29.1923.6Y
AD7549JPZ-REEL Production20 ld PLCCREEL 1000-40 to 85C023.6Y
AD7549KN Production20 ld PDIPOTH 18-40 to 85C00N
AD7549KNZ Production20 ld PDIPOTH 18-40 to 85C34.1228.6Y
AD7549KPZ Production20 ld PLCCOTH 49-40 to 85C35.5528.38Y
Reference Materials
AD7549: LC2MOS Dual 12-Bit µP-Compatible DAC Scanned Data Sheet (Rev. A) ad7549
AD7549: Military Data Sheet ad7549
AN-912: 用平衡电流输出DAC驱动中心抽头变压器[中文版] (Rev. 0) ad7524
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0) ad7524
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 ad7524
AN-326: Interfacing the AD7549 to the MCS-48 and MCS-51 Microcomputer Families ad7549
AN-325: 12-Bit Analog I/O Port Uses AD7549 Dual 12-Bit DAC and 8051 Microcomputer ad7549
AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design ad7524
AN-206: CMOS Multiplying DAC Based Panning Circuit Provides Almost Constant Output Power ad7528
AN-209: 8th Order Programmable Low-Pass Analog Filter Using Dual 12-Bit CMOS Multiplying DACs ad7549
AN-225: 12-Bit Voltage-Output DACs for Single-Supply 5V and 12V Systems ad7542
Digital to Analog Converters ICs Solutions Bulletin ad5590
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