AD5447 Dual 12-Bit, High Bandwidth Multiplying DACs with Parallel Interface

Portable battery-powered applications Waveform generators Analog processing Instrumentation applications Programmable amplifiers and attenuators Digitally controlled calibration Programmable filters and oscillators Composite video Ultrasound Gain, offset, and voltage trimming

The AD5428/AD5440/AD5447 are Dual CMOS 8-, 10- and 12-bit, dual-channel, current output digital-to-analog converters (DACs), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suited to battery-powered and other applications.

As a result of being manufacture on a CMOS submicron process, they offer excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidths of up to 10 MHz.

These DACs utilize data readback, allowing the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeros and the DAC outputs are at zero scale.

The applied external reference input voltage (VREF) determines the full scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full scale voltage output when combined with an external I-to-V Precision Amplifier.

The AD5428 is available in small 20 lead TSSOP package, while the AD5440/AD5447 DACs are available in small 24-lead TSSOP packages.

Applications

Features and Benefits
  • 10 MHz multiplying bandwidth
  • INL of ±0.25 LSB @ 8 bits
  • 24-lead TSSOP package
  • 2.5 V to 5.5 V supply operation
  • ±10 V reference input
  • 21.3 MSPS update rate
  • Extended temperature range: −40°C to +125°C
  • 4-quadrant multiplication
  • Power-on reset
  • 0.5 μA typical current consumption
  • Guaranteed monotonic
  • Readback Function
  • AD7528 Upgrade (AD5428)
    AD7547 Upgrade (AD5447)
Digital to Analog Converters
Data Sheets
Documentnote
AD5428/AD5440/AD5447: Dual 8-/10-/12-Bit, High Bandwidth, Multiplying DACs with Parallel Interface Data Sheet (Rev. D)PDF 657.87 K
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-137: A Digitally Programmable Gain and Attenuation Amplifier DesignPDF 52 kB
User Guides
Documentnote
UG-275: Evaluation Board for the AD5428/AD5440/AD5447EB 8-Bit/10-Bit/12-Bit, Parallel Input, Dual-Channel, Current Output DACPDF 315 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD5447YRU Last Time Buy24 ld TSSOPOTH 62-40 to 125C00N
AD5447YRUZ Production24 ld TSSOPOTH 62-40 to 125C5.674.59Y
AD5447YRUZ-REEL Production24 ld TSSOPREEL 2500-40 to 125C04.59Y
AD5447YRUZ-REEL7 Production24 ld TSSOPREEL 1000-40 to 125C04.59Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD5447EBZEvaluation Board59Y
Reference Materials
AD5428/AD5440/AD5447:双通道、8/10/12位、高带宽、并行接口乘法DAC (Rev. C) ad5428
AD5428/AD5440/AD5447: Dual 8-/10-/12-Bit, High Bandwidth, Multiplying DACs with Parallel Interface Data Sheet (Rev. D) ad5428
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-137: A Digitally Programmable Gain and Attenuation Amplifier Design ad7524
UG-275: Evaluation Board for the AD5428/AD5440/AD5447EB 8-Bit/10-Bit/12-Bit, Parallel Input, Dual-Channel, Current Output DAC ad5428
Multiplying DACs Flexible Building Blocks ad5544
Digital to Analog Converters ICs Solutions Bulletin ad5590