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AD1871:  Stereo Audio, 24-bit, 96kHz, Multi-bit Sigma Delta ADC

Product Details


The AD1871 is a stereo audio ADC intended for digital audio applications requiring high performance analog-to-digital conversion. It features two 24-bit conversion channels each with programmable gain amplifier (PGA), multi-bit sigma-delta modulator and decimation filters. Each channel provides 97 dB of THD+N and 107 db of Dynamic Range making the AD1871 suitable for applications such as Digital Audio Recorders and Mixing Consoles.

FEATURES and BENEFITS

  • 5.0 V Stereo Audio ADC with 3.3 V Tolerant Digial Interface
  • Supports 96 kHz Sample Rates
  • Supports 16-/20-/24-bit Word Lengths
  • Multibit Sigma-Delta Modulators with "Perfect Differential Linearity Restoration" for Reduced Idle Tones and Noise Floor
  • 105 dB (Typ) Dynamic Range
  • Supports 256/512 and 768 x fS Master Clocks
  • Device Control via SPI Compatible Serial Port or Optional Control Pins
  • Flexible Serial Data Port allows
    Right-Justified, Left-Justified, I2S
    Compatible and DSP Serial Port
    Modes Cascadable (up to Four
    Devices) from a Single DSP
    SPORT
  • On-Chip Reference
  • 28-Lead SSOP Package

Functional Block Diagram for AD1871

Documentation

Title Content Type File Type
AD1871: Stereo Audio, 24-bit, 96 kHz, Multi-bit Sigma Delta ADC Data Sheet  (Rev 0, 09/2002) (pdf, 1384 kB) Data Sheets PDF
AN-1006: Using the EVAL-ADUSB2EBZ  (pdf, 349 kB) Application Notes PDF
AN-327: DAC ICs: How Many Bits Is Enough?  (pdf, 345 kB)
Digital audio playback DACs are available in a variety of different architectures--each with it's own performance tradeoffs.
Application Notes PDF
AN-211: The Alexander Current-Feedback Audio Power Amplifier  (pdf, 1154 kB) Application Notes PDF
Encoder's Spare Channel Embeds Whole-House Stereo Audio in Satellite Set-Top-Box Designs Stably and Cost-Effectively
by Jeritt Kent and Victor Chang, Analog Devices, Inc. (Analog Dialogue, Vol. 39, July 2005)
Analog Dialogue HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
Automated Register Window Builder, Version 3.2.1  (zip, 4512 kB) Software Modules ZIP

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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

AD1871 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD1871YRSZ Status: Production 28 ld SSOP 28 Comm. Tube, 47 $5.70 $5.15 Y  Material Info PCN Purchase Sample
AD1871YRSZ-REEL Status: Production 28 ld SSOP 28 Comm. Reel, 1500 - $5.15 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.

ADUSB2EBZ Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADUSB2EBZ Status: Production USB Interface $80.00 Yes -
AD1871 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD1871EBZ Status: Production Evaluation Board $166.67 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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