Add to Signal Chain Designer

AD7828:  High Speed , 8-Channel, 8-Bit CMOS ADC

Product Details


The AD7824 and AD7828 are high-speed, multichannel, 8-bit ADCs with a choice of 4 (AD7824) or 8 (AD7828) multiplexed analog inputs. A half-flash conversion technique gives a fast conversion rate of 2.5 µs per channel and the parts have a built-in track/hold function capable of digitizing full-scale signals of 10 kHz (157 mV/µs slew rate) on all channels. The AD7824 and AD7828 operate from a single +5 V supply and have an analog input range of 0 V to +5 V, using an external +5 V reference.

Microprocessor interfacing of the parts is simple, using standard Chip Select (CS) and Read (RD) signals to initiate the conversion and read the data from the three-state data outputs. The half-flash conversion technique means that there is no need to generate a clock signal for the ADC. The AD7824 and AD7828 can be interfaced easily to most popular microprocessors.

The AD7824 and AD7828 are fabricated in an advanced, all ion-implanted, Linear-Compatible CMOS process (LC2MOS) and have low power dissipation of 40 mW (typ). The AD7824 is available in a 0.3" wide, 24-pin "skinny" DIP, while the AD7828 is available in a 0.6" wide, 28-pin DIP and in 28- terminal surface mount packages.

FEATURES and BENEFITS

  • 4 or 8 Analog Input Channels
  • Built-In Track-and-Hold Function
  • 10 kHz Signal Handling on Each Channel
  • Fast Microprocessor Interface
  • Single 5 V Supply
  • Low Power: 50 mW
  • Fast Conversion Rate: 2.5 µs/Channel
  • Tight Error Specification: 1/2 LSB

Functional Block Diagram for AD7828

Documentation

Title Content Type File Type
AD7824/AD7828: LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs Data Sheet (Rev F, 01/2003) (pdf, 270 kB) Data Sheets PDF
AD7828: Military Data Sheet (Rev A, 07/2002) (pdf) Data Sheets PDF
AN-215: Designer's Guide to Flash-ADC Testing, Part 1, 2 & 3  (pdf, 1596 kB)
Flash ADCs Provide the Basis for High Speed Conversion.
Application Notes PDF
AN-299: Simple Circuit Provides Ratiometric Reference Levels for AD782X Family of Half-Flash ADCs  (pdf, 170 kB) Application Notes PDF
ADI Warns Against Misuse of COTS Integrated Circuits  (pdf, 13 kB)
(Revised 1/03)
Invites Customer Participation in Creative Mil/Aero System Solutions
Recommended Reading PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
Which ADC Architecture Is Right for Your Application?
by Walt Kester, Analog Devices, Inc. (Analog Dialogue, Vol 39, June 2005)
Analog Dialogue HTML
Space Qualified Parts List  (pdf, 93 kB)
This document lists 67 (240+) space level products that are available from Analog Devices. Many of the products listed are state-of-the-art data conversion and signal processing products that were previously only available as commercial or military Class B products. Through our Space Products Group and MIL-PRF-38535 certified Level V (Class S) facility, we are pleased to offer these products to the space marketplace.
Aerospace Information 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.

SampleSample & Buy

Price, packaging, availability

AD7828 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
5962-8876403XX Status: Production 28 ld CerDIP 28 Mil Tube, 12 $77.87 $62.91 N  Material Info PCN Purchase
5962-88764043A Status: Production 28 ld LCC 28 Mil Tube, 42 $184.65 $130.99 N  Material Info PCN Purchase
5962-8876404XX Status: Production 28 ld CerDIP 28 Mil Tube, 12 $96.93 $78.60 N  Material Info PCN Purchase
AD7828BQ Status: Production 28 ld CerDIP 28 Ind Tube, 12 $24.96 $22.46 N  Material Info PCN Purchase
AD7828BR Status: Production 28 ld SOIC - Wide 28 Ind Tube, 27 $13.40 $13.40 N  Material Info PCN Purchase
AD7828BR-REEL Status: Production 28 ld SOIC - Wide 28 Ind Reel, 1000 - $12.81 N  Material Info PCN Purchase
AD7828BRZ Status: Production 28 ld SOIC - Wide 28 Ind Tube, 27 $12.20 $12.20 Y  Material Info PCN Purchase
AD7828BRZ-REEL Status: Production 28 ld SOIC - Wide 28 Ind Reel, 1000 - $12.20 Y  Material Info PCN Purchase
AD7828CQ Status: Production 28 ld CerDIP 28 Ind Tube, 12 $31.92 $28.72 N  Material Info PCN Purchase
AD7828KNZ Status: Production 28 ld PDIP 28 Comm. Tube, 13 $13.85 $11.76 Y  Material Info PCN Purchase
AD7828KP Status: Production 28 ld PLCC 28 Comm. Tube, 39 $16.84 $13.73 N  Material Info PCN Purchase
AD7828KP-REEL Status: Production 28 ld PLCC 28 Comm. Reel, 750 - $13.73 N  Material Info PCN Purchase
AD7828KPZ Status: Production 28 ld PLCC 28 Comm. Tube, 39 $15.35 $12.52 Y  Material Info PCN Purchase
AD7828KPZ-REEL Status: Production 28 ld PLCC 28 Comm. Reel, 750 - $12.52 Y  Material Info PCN Purchase
AD7828LPZ Status: Production 28 ld PLCC 28 Comm. Tube, 39 $20.86 $17.05 Y  Material Info PCN Purchase
AD7828LRS-REEL Status: Last Time Buy 28 ld SSOP 28 Comm. Reel, 1500 - $11.37 N  Material Info PCN/PDN Purchase
AD7828LRSZ Status: Production 28 ld SSOP 28 Comm. Tube, 47 $12.19 $10.35 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.


沪ICP备09046653号
content here.
content here.

Review this Product

Close