-
AD7228A: LC2MOS Octal 8-Bit DAC Data Sheet (Rev. B)6/27/2013PDF331 kB
Overview
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
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 when WR 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 kΩ load.
The AD7228A is fabricated on an all ion-implanted, high-speed, 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
- 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. - 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. - 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.
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
Choosing High-Speed Signal Processing Components for Ultrasound Systems4/1/1995 Analog Dialogue
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
AD7228ABNZ | Material Declaration | Reliability Data | 24-Lead PDIP | |
AD7228ABPZ | Material Declaration | Reliability Data | 28-Lead PLCC | |
AD7228ABPZ-REEL | Material Declaration | Reliability Data | 28-Lead PLCC | |
AD7228ABRZ | Material Declaration | Reliability Data | 24-Lead SOIC (Wide) | |
AD7228ABRZ-REEL | Material Declaration | Reliability Data | 24-Lead SOIC (Wide) | |
AD7228ACNZ | Material Declaration | Reliability Data | 24-Lead PDIP | |
AD7228ACPZ | Material Declaration | Reliability Data | 28-Lead PLCC | |
AD7228ACPZ-REEL | Material Declaration | Reliability Data | 28-Lead PLCC | |
AD7228ACQ | Material Declaration | Reliability Data | 24-Lead CerDIP (Narrow 0.3 Inch) | |
AD7228ACRZ | Material Declaration | Reliability Data | 24-Lead SOIC (Wide) | |
AD7228ACRZ-REEL | Material Declaration | Reliability Data | 24-Lead SOIC (Wide) | |
Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD7228A Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.