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AD557:  DACPORT Low Cost, Complete µP-Compatible 8-Bit DAC

Product Details


Newer Alternatives:
  • AD5300 2.7 V to 5.5 V, 140 µA, Rail-to-Rail Voltage Output 8-Bit DAC in SOT-23 and MicroSOIC Packages
  • AD5601 2.7 V to 5.5 V, <100 µA, 8-Bit nanoDAC®, SPI Interface in SC70 Package

The AD557 DACPORT® is a complete voltage-output 8-bit digital-to-analog converter, including output amplifier, full microprocessor interface and precision voltage reference on a single monolithic chip. No external components or trims are required to interface, with full accuracy, an 8-bit data bus to an analog system.

The low cost and versatility of the AD557 DACPORT are the result of continued development in monolithic bipolar technologies.

The complete microprocessor interface and control logic is implemented with integrated injection logic (I2 L), an extremely dense and low-power logic structure that is process-compatible with linear bipolar fabrication. The internal precision voltage reference is the patented low-voltage band-gap circuit which permits full-accuracy performance on a single +5 V power supply. Thin-film silicon-chromium resistors provide the stability required for guaranteed monotonic operation over the entire operating temperature range, while laser-wafer trimming of these thin-film resistors permits absolute calibration at the factory to within ±2.5 LSB; thus, no user-trims for gain or offset are required. A new circuit design provides voltage settling to ±1/2 LSB for a full-scale step in 800 ns.

The AD557 is available in two package configurations. The AD557JN is packaged in a 16-pin plastic, 0.3"-wide DIP. For surface mount applications, the AD557JP is packaged in a 20-pin JEDEC standard PLCC. Both versions are specified over the operating temperature range of 0°C to +70°C.

DACPORT is a registered trademark of Analog Devices, Inc.

FEATURES and BENEFITS

  • Complete 8-bit DC
  • Voltage Output - 0 V to 2.56 V
  • Internal Precision Band-Gap Reference
  • Single-Supply Operation: 5 V (±10%)
  • Full Microprocessor Interface
  • Fast: 1 xxs Voltage Settling to ±1/2 LSB
  • Low power: 75 mW
  • No User Trims Required
  • Guaranteed Montonic
    Over Temperature
  • All Errors Specified T min to T max
  • Small 16-Lead DIP or 20-Lead PLCC
    Package
  • Low Cost

Functional Block Diagram for AD557

AD557 Diagram
Functional Block Diagram for AD557

Similar Products

  • AD5300 2.7 V to 5.5 V, 140 µA, Rail-to-Rail Voltage Output 8-Bit DAC in SOT-23 and MicroSOIC Packages
  • AD5601 2.7 V to 5.5 V, <100 µA, 8-Bit nanoDAC®, SPI Interface in SC70 Package
  • AD5611 2.7 V to 5.5 V, <100 µA, 10-Bit nanoDAC®, SPI Interface in SC70 Package

Documentation

Title Content Type File Type
AD557: DACPORT Low Cost, Complete µP-Compatible 8-Bit DAC Data Sheet (Rev B, 01/2001) (pdf, 107 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

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

AD557 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD557JN Status: Production 16 ld PDIP 16 Comm. Tube, 25 $6.22 $5.62 N  Material Info PCN Purchase
AD557JNZ Status: Production 16 ld PDIP 16 Comm. Tube, 25 $5.67 $5.12 Y  Material Info PCN Purchase
AD557JPZ Status: Production 20 ld PLCC 20 Comm. Tube, 49 $5.67 $5.12 Y  Material Info Notify Me Purchase
AD557JPZ-REEL Status: Production 20 ld PLCC 20 Comm. Reel, 1000 - $5.12 Y  Material Info Notify Me Purchase
AD557JPZ-REEL7 Status: Production 20 ld PLCC 20 Comm. Reel, 250 - $5.12 Y  Material Info Notify Me Purchase
Price Table Help

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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