Datasheet Texas Instruments ADS821

ManufacturerTexas Instruments
SeriesADS821
Datasheet Texas Instruments ADS821

10-Bit, 40-MSPS Analog-to-Digital Converter (ADC)

Datasheets

10-Bit, 40MHz Sampling Analog-To-Digital Converter datasheet
PDF, 388 Kb, Revision: B, File published: Feb 14, 2005
Extract from the document

Prices

Status

ADS821EADS821E/1KADS821U
Lifecycle StatusObsolete (Manufacturer has discontinued the production of the device)Obsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoNoNo

Packaging

ADS821EADS821E/1KADS821U
N123
Pin282828
Package TypeDBDBDW
Industry STD TermSSOPSSOPSOIC
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-G
Width (mm)5.35.37.5
Length (mm)10.210.217.9
Thickness (mm)1.951.952.35
Pitch (mm).65.651.27
Max Height (mm)222.65
Mechanical DataDownloadDownloadDownload
Package QTY20
CarrierTUBE
Device MarkingADS821U

Parametrics

Parameters / ModelsADS821E
ADS821E
ADS821E/1K
ADS821E/1K
ADS821U
ADS821U
# Input Channels111
Analog Input BW, MHz65
Analog Input BW(MHz)6565
Approx. Price (US$)19.91 | 1ku19.91 | 1ku
ArchitecturePipelinePipelinePipeline
DNL(Max), +/-LSB1
DNL(Max)(+/-LSB)11
DNL(Typ), +/-LSB0.5
ENOB, Bits9.3
ENOB(Bits)9.39.3
INL(Max), +/-LSB2
INL(Max)(+/-LSB)22
INL(Typ), +/-LSB0.5
Input BufferNoNoNo
Input Range, Vp-p2V (p-p)2V (p-p)2
InterfaceParallel CMOSParallel CMOSParallel CMOS
Operating Temperature Range, C-40 to 85
Operating Temperature Range(C)-40 to 85-40 to 85
Package GroupSOICSOICSOIC
Package Size: mm2:W x L, PKG28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
Package Size: mm2:W x L (PKG)28SOIC: 184 mm2: 10.3 x 17.9(SOIC)28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
Power Consumption(Typ), mW390
Power Consumption(Typ)(mW)390390
RatingCatalogCatalogCatalog
Reference ModeExt
Int
Ext
Int
Ext,Int
Resolution, Bits10
Resolution(Bits)1010
SFDR, dB62
SFDR(dB)6262
SINAD, dB58
SINAD(dB)5858
SNR, dB58
SNR(dB)5858
Sample Rate(Max), MSPS40
Sample Rate(Max)(MSPS)4040

Eco Plan

ADS821EADS821E/1KADS821U
RoHSNot CompliantNot CompliantCompliant
Pb FreeNoNo

Application Notes

  • ADS82x ADC with non-uniform sampling clock
    PDF, 234 Kb, File published: Feb 28, 2005
  • CDCE62005 as Clock Solution for High-Speed ADCs
    PDF, 805 Kb, File published: Sep 4, 2008
    TI has introduced a family of devices well-suited to meet the demands for high-speed ADC devices such as the ADS5527 which is capable of sampling up to 210 MSPS. To realize the full potential of these high-performance products it is imperative to provide a low phase noise clock source. The CDCE62005 clock synthesizer chip offers a real-world clocking solution to meet these stringent requirements
  • Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio
    PDF, 376 Kb, File published: Apr 28, 2009
    This application report explains different aspects of selecting analog-to-digital and digital-to-analog data converters for Software-Defined Radio (SDR) applications. It also explains how ADS61xx ADCs and the DAC5688 from Texas Instruments fit properly for SDR designs.
  • Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A)
    PDF, 327 Kb, Revision: A, File published: Sep 10, 2010
    This application report discusses the performance-related aspects of passive and active interfaces at the analog input of high-speed pipeline analog-to-digital converters (ADCs). The report simplifies the many possibilities into two main categories: passive and active interface circuits. The first section of the report gives an overview of equivalent models of buffered and unbuffered ADC input cir
  • Phase Noise Performance and Jitter Cleaning Ability of CDCE72010
    PDF, 2.3 Mb, File published: Jun 2, 2008
    This application report presents phase noise data taken on the CDCE72010 jitter cleaner and synchronizer PLL device. The phase noise performance of the CDCE72010 depends on the phase noise of the reference clock VCXO clock and the CDCE72010 itself. This application report shows the phase noise performance at several of the most popular CDMA frequencies. This data helps the user to choose the rig
  • CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters
    PDF, 424 Kb, File published: Jun 8, 2008
    Texas Instruments has recently introduced a family of devices suitable to meet the demands of high-speed high-IF sampling analog-to-digital converters (ADCs) such as the ADS5483 which is capable of sampling up to 135 MSPS. To realize the full potential of these high-performance devices the system must provide an extremely low phase noise clock source. The CDCE72010 clock synthesizer chip offers
  • Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)
    PDF, 69 Kb, Revision: A, File published: May 18, 2015
  • A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)
    PDF, 425 Kb, Revision: B, File published: Oct 9, 2011
    This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (О”ОЈ), successive approximation register (SAR), and pipeline analog-to-digital (A/D) converter specifications and performance characteristics. Although there is a considerable amount of detail in this document, the product data sheet for a particular product specification is the best and final reference.
  • Principles of Data Acquisition and Conversion (Rev. A)
    PDF, 132 Kb, Revision: A, File published: Apr 16, 2015
  • Interleaving Analog-to-Digital Converters
    PDF, 64 Kb, File published: Oct 2, 2000
    It is tempting when pushing the limits of analog-to-digital conversion to consider interleaving two or more converters to increase the sample rate. However, such designs must take into consideration several possible sources of error.
  • What Designers Should Know About Data Converter Drift
    PDF, 95 Kb, File published: Oct 2, 2000
    Exactly how inaccurate will a change in temperature make an analog-to-digital or digital-to-analog converter? As designers are well aware, a 12-bit device may provide a much lower accuracy at its operating-temperature extremes, perhaps only to 9 or even 8 bits. But for lack of more precise knowledge, many play it safe (and expensive) and overspecify.

Model Line

Series: ADS821 (3)

Manufacturer's Classification

  • Semiconductors> Data Converters> Analog-to-Digital Converters (ADCs)> High Speed ADCs (>10MSPS)
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