AD7228A:  LC2MOS Octal 8-Bit DAC

Product Details


The AD7228A contains eight 8-bit voltage-mode digital-to-analog converters, with output buffer amplifiers and interface logic on a single monolithic chip. No external trims are required to achieve full specified performance for the part.

Separate on-chip latches are provided for each of the eight D/A converters. Data is transferred into the data latches through a common 8-bit TTL/CMOS (5 V) compatible input port. Address inputs A0, A1 and A2 determine which latch is loaded whenWR goes low. The control logic is speed compatible with most 8-bit microprocessors.

Specified performance is guaranteed for input reference voltages from +2 to +10 V when using dual supplies. The part is also specified for single supply +15 V operation using a reference of +10 V and single supply +5 V operation using a reference of +1.23 V. Each output buffer amplifier is capable of developing +10 V across a 2 kW load.

The AD7228A is fabricated on an all ion-implanted, highspeed, Linear Compatible CMOS (LC2MOS) process which has been specifically developed to integrate high-speed digital logic circuits and precision analog circuits on the same chip.

PRODUCT HIGHLIGHTS

  1. Eight DACs and Amplifiers in Small Package
    The single-chip design of eight 8-bit DACs and amplifiers allows a dramatic reduction in board space requirements and offers increased reliability in systems using multiple converters. Its pinout is aimed at optimizing board layout with all analog inputs and outputs at one side of the package and all digital inputs at the other.
  2. Single or Dual Supply Operation
    The voltage-mode configuration of the DACs allows single supply operation of the AD7228A. The part can also be operated with dual supplies giving enhanced performance for some parameters.
  3. Microprocessor Compatibility
    The AD7228A has a common 8-bit data bus with individual DAC latches, providing a versatile control architecture for simple interface to microprocessors. All latch enable signals are level triggered and speed compatible with most high performance 8-bit microprocessors.

FEATURES and BENEFITS

  • Eight 8-Bit DACs with Output Amplifiers
  • Operates with Single +5 V, +12 V or +15 V or Dual Supplies
  • µP Compatible (95 ns WR Pulse)
  • No User Trims Required
  • Skinny 24-Pin DlPs, SOIC, and 28-Terminal Surface Mount Packages

Functional Block Diagram for AD7228A

Documentation

Title Content Type File Type
AD7228A: LC2MOS Octal 8-Bit DAC Data Sheet (Rev B, 06/2013) (pdf, 331 kB) Data Sheets PDF
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

AD7228A Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7228ABN Status: Production PLASTIC DIP 24 Ind Tube, 15 $21.60 $18.35 N  Material Info PCN Purchase
AD7228ABNZ Status: Production PLASTIC DIP 24 Ind Tube, 15 $18.70 $15.89 Y  Material Info PCN Purchase
AD7228ABP-REEL Status: Obsolete PLCC:PLASTIC LEAD CHIP CAR 28 Ind Reel, 750 - - N  Material Info PCN/PDN Contact ADI
AD7228ABPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $18.16 $15.42 Y  Material Info Notify Me Purchase
AD7228ABPZ-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Reel, 750 - $15.42 Y  Material Info Notify Me Purchase
AD7228ABR Status: Production SOIC 300 MIL 24 Ind Tube, 31 $20.97 $17.81 N  Material Info PCN Purchase
AD7228ABR-REEL Status: Obsolete SOIC 300 MIL 24 Ind Reel, 1000 - - N  Material Info PCN/PDN Contact ADI
AD7228ABRZ Status: Production SOIC 300 MIL 24 Ind Tube, 31 $18.16 $15.42 Y  Material Info PCN Purchase
AD7228ABRZ-REEL Status: Production SOIC 300 MIL 24 Ind Reel, 1000 - $15.42 Y  Material Info PCN Purchase
AD7228ACN Status: Production PLASTIC DIP 24 Ind Tube, 15 $26.63 $22.62 N  Material Info PCN Purchase
AD7228ACNZ Status: Production PLASTIC DIP 24 Ind Tube, 15 $21.95 $18.65 Y  Material Info PCN Purchase
AD7228ACP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $25.85 $21.97 N  Material Info PCN Purchase
AD7228ACP-REEL Status: Contact ADI PLCC:PLASTIC LEAD CHIP CAR 28 Ind Reel, 750 - - N  Material Info PCN/PDN Contact ADI
AD7228ACPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $21.31 $18.10 Y  Material Info Notify Me Purchase
AD7228ACPZ-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Reel, 750 - $18.10 Y  Material Info Notify Me Purchase
AD7228ACQ Status: Production CERDIP GLASS SEAL 24 Ind Tube, 15 $34.05 $34.05 N  Material Info PCN Purchase
AD7228ACR Status: Production SOIC 300 MIL 24 Ind Tube, 31 $24.62 $20.92 N  Material Info PCN Purchase
AD7228ACR-REEL Status: Production SOIC 300 MIL 24 Ind Reel, 1000 - $20.92 N  Material Info PCN Purchase
AD7228ACRZ Status: Production SOIC 300 MIL 24 Ind Tube, 31 $21.31 $18.10 Y  Material Info PCN Purchase
AD7228ACRZ-REEL Status: Production SOIC 300 MIL 24 Ind Reel, 1000 - $18.10 Y  Material Info PCN 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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