AD5426 8-Bit High Bandwidth Multiplying DACs with Serial Interface

These DACs use a double buffered, 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE™, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with 0s and the DAC outputs are at zero scale. As a result of manufacturing on a CMOS submicron process, the parts offer excellent 4-quadrant multiplication characteristics with large signal multiplying bandwidths of 10 MHz. 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 current to voltage precision amplifier. The AD5426/AD5432/AD5443 DACs are available in small, 10-lead MSOP packages. The EVAL-AD5443SDZ/EVAL-AD5446SDZ/EVAL-AD5453SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-327 evaluation board user guide. Applications Portable battery-powered applications Waveform generators Instrumentation Programmable amplifiers and attenuators Digitally controlled calibration Programmable filters and oscillators Composite video Ultrasound Gain, offset, and voltage trimming

The AD5426/AD5432/AD5443 are CMOS 8-, 10-, and 12-bit current output digital-to-analog converters (DACs), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suitable for battery-powered applications and many other applications.

These DACs use a double buffered, 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE™, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with 0s and the DAC outputs are at zero scale.

As a result of manufacturing on a CMOS submicron process, the parts offer excellent 4-quadrant multiplication characteristics with large signal multiplying bandwidths of 10 MHz. 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 current to voltage precision amplifier.

The AD5426/AD5432/AD5443 DACs are available in small, 10-lead MSOP packages.

The EVAL-AD5443SDZ/EVAL-AD5446SDZ/EVAL-AD5453SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-327 evaluation board user guide.

Applications
  • Portable battery-powered applications
  • Waveform generators
  • Instrumentation
  • Programmable amplifiers and attenuators
  • Digitally controlled calibration
  • Programmable filters and oscillators
  • Composite video
  • Ultrasound
  • Gain, offset, and voltage trimming
Features and Benefits
  • +2.5 V to +5.5 V Supply Operation
  • 50 MHz Serial Interface
  • 10 MHz Multiplying Bandwidth
  • 2.5 MSPS update rate
  • ±10 V reference input
  • Low glitch energy < 2 nV-s
  • Pin Compatible 8- (AD5426), 10- (AD5432) Current Output DACs
  • Pin Compatible 12-Bit (AD5443) Current Output DACs
  • Guaranteed Monotonic
  • Four Quadrant Multiplication
  • Power On reset with brownout detection
  • Daisy Chain Mode
  • Readback Function
  • 0.4 μA typical power consumption
Digital to Analog Converters
Data Sheets
Documentnote
AD5426/AD5432/AD5443: 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface Data Sheet (Rev. H)PDF 618 kB
Application Notes
Documentnote
AN-1231: AC Signal Processing Using the AD5426/AD5432/AD5443 Current Output DACs (Rev. B)PDF 87 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD5426YRMZ Production10 ld MSOPOTH 50-40 to 125C2.141.73Y
AD5426YRMZ-REEL Production10 ld MSOPREEL 3000-40 to 125C01.73Y
AD5426YRMZ-REEL7 Production10 ld MSOPREEL 1000-40 to 125C01.73Y
Reference Materials
AD5426/AD5432/AD5443: 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface Data Sheet (Rev. H) ad5426
AD5426/AD5432/AD5443: 8/10/12位高带宽乘法DAC,内置串行接口 (Rev. F) ad5426
AN-1231: AC Signal Processing Using the AD5426/AD5432/AD5443 Current Output DACs (Rev. B) ad5426
Multiplying DACs Flexible Building Blocks ad5544