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AD7819:  +2.7 V to +5.5 V, 200 kSPS 8-Bit Sampling ADC

Product Details


The AD7819 is a high speed, microprocessor-compatible, 8-bit analog-to-digital converter with a maximum throughput of 200 kSPS. The converter operates off a single +2.7 V to +5.5 V supply and contains a 4.5 µs successive approximation A/D converter, track/hold circuitry, on-chip clock oscillator and 8-bit wide parallel interface. The parallel interface is designed to allow easy interfacing to microprocessors and DSPs. Using only address decoding logic the AD7819 is easily mapped into the microprocessor address space.

When used in its power-down mode, the AD7819 automatically powers down at the end of a conversion and powers up at the start of a new conversion. This feature significantly reduces the power consumption of the part at lower throughput rates. The AD7819 can also operate in a high speed mode where the part is not powered down between conversions. In this mode of operation the part is capable of providing 200 kSPS throughput.

The part is available in a small, 16-pin 0.3" wide, plastic dual-in-line package (DIP); in a 16-pin, 0.15" wide, narrow body small outline IC (SOIC) and in a 16-pin, narrow body, thin shrink small outline package (TSSOP).

FEATURES and BENEFITS

  • 8-Bit ADC with 4.5 µs Conversion Time
  • On-Chip Track and Hold
  • Operating Supply Range: 2.7 V to 5.5 V
  • 8-Bit Parallel Interface 8-Bit Read
  • Analog Input Range: 0 V to VREF
  • Reference Input Range: 1.2 V to VDD
  • Specifications at 2.7 V–3.6 V and 5 V ± 10%
  • Power Performance
    - Normal Operation
       10.5 mW, VDD = 3 V
    - Automatic Power-Down
       57.75 µW @ 1 kSPS, VDD = 3 V

Functional Block Diagram for AD7819

Documentation

Title Content Type File Type
AD7819: +2.7V to +5.5V, 200 kSPS 8-Bit Sampling ADC Data Sheet (Rev B, 10/2000) (pdf, 154 kB) Data Sheets PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles 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

AD7819 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7819YNZ Status: Production 16 ld PDIP 16 Ind Tube, 25 $3.01 $2.35 Y  Material Info PCN Purchase
AD7819YRUZ Status: Production 16 ld TSSOP 16 Ind Tube, 96 $2.92 $2.29 Y  Material Info PCN Purchase
AD7819YRUZ-REEL Status: Production 16 ld TSSOP 16 Ind Reel, 2500 - $2.29 Y  Material Info PCN Purchase
AD7819YRUZ-REEL7 Status: Production 16 ld TSSOP 16 Ind Reel, 1000 - $2.29 Y  Material Info PCN Purchase
AD7819YRZ Status: Production 16 ld SOIC 16 Ind Tube, 48 $2.92 $2.29 Y  Material Info PCN Purchase
AD7819YRZ-REEL Status: Last Time Buy 16 ld SOIC 16 Ind Reel, 2500 - $2.29 Y  Material Info PCN/PDN Purchase
AD7819YRZ-REEL7 Status: Production 16 ld SOIC 16 Ind Reel, 1000 - $2.29 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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