1 / 20

ADC

ADC. Worldwide Data Converters market share. Source: Databeans Mar 2003. Precision Data Converters RECENT TECHNOLOGY LEADERSHIP. Analog Devices World Leader in ADCs Fastest Data Rates  Smallest Packages  Lowest Power .

ouida
Télécharger la présentation

ADC

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ADC

  2. Worldwide Data Convertersmarket share Source: Databeans Mar 2003 www.analog.com

  3. Precision Data ConvertersRECENT TECHNOLOGY LEADERSHIP www.analog.com

  4. Analog Devices World Leader in ADCs Fastest Data Rates Smallest Packages  Lowest Power  Precision Converters: 8-Bit to 18-Bit ADCs Data Rates up to 3 MSPS www.analog.com

  5. Developing Cores for Key Markets PRECISION ADC High Accuracy Low Voltage Single Supply Cores Fast Throughput No pipeline delay Bi Polar Cores AD7674 AD7685 AD7725 AD7484 AD7266 AD7890 AD7894 AD7476A AD7680 AD7466 Industrial Portable Instru Medical Comms System Monitoring Key Target Market Segments www.analog.com

  6. AD7679 AD7678 • As per AD7674 except • 570ksps throughput • As per AD7674 except • 100ksps throughput AD7674 – 800ksps 18-bit • Fastest 18-bit ADC available • 18-bit NMC (±1 DNL) specified at 800ksps • ±2.5 LSB INL specified at 800ksps • AC performance– best in class • -115dB THD • 100dB SNR • On-chip reference buffer • Allows greater flexibility in reference selection • On-chip signal conditioning • Fully Differential i/p’s, ±5V, with +5V VDD • Flexible Parallel and Serial interface • 18-,16-, 8- Parallel • 48-pin LQFP or CSP package www.analog.com

  7. AD7725 16-Bit, S-D, ADC with PostProcessor • On-chip post processor • 130 million accumulates (MAC) per second • Design FIR, IIR or linearisation • Programmable filtering configurable up to 108 tap • Complete control over filter response, filter coefficients and decimation rate • 5th order S-DModulator • Sample at frequencies up to 14.4MHz • Programmable decimation and output word rate • On-chip 2.5V reference • User programmable signal conditioning • Bipolar or Unipolar i/p’s • Differential or single ended • Full Filter Simulation kit available • “Filter Wizard” allows design of different types of filters and generates configuration file for download to part. www.analog.com

  8. AD7725 Tools • AD7725 Evaluation Board – Rev E • Accompanied by Evaluation Software – Version 2.2 • This software enables the analysis of the conversion data by displaying FFTs or histogram of codes • Eval-Control Board • Used to interface the Evaluation Board to a PC • FilterWizard • Used to design filters • The configuration files generated can be loaded to the AD7725 directly, using the AD7725 Evaluation Software www.analog.com

  9. AD7685/86 Features • 16-Bits Resolution • 16-Bits No Missing Codes • 2.7V to 5V Operation • INL= +/-3LSB • AD7685= 250kSPS, AD7686= 550kSPS • Power DissipationPeak Sampling Rate • AD7685= 25mW • AD7686= 42mW • 0 to VREF Input Range • 92dB SINAD @20kHz • SPI/QSPI/uWIRE/DSP Compatible • 10-Lead MSOP • Release Date: December 2003 • 1k Price: AD7685= $8.00, AD7686= $12.00 Samples Available Now www.analog.com

  10. 16-bit ADC Portfolio www.analog.com

  11. AD7485 AD7482 • As per AD7484 except • Serial interface • Specified at 2Msps throughput • As per AD7484 except • 12-bit resolution AD7484 14-bit 3Msps ADC • Fastest 14-bit SAR ADC available • SAR architecutre means no pipeline delays • ±0.3 LSB INL, ±0.3 LSB DNL @ 14-bits • Overrange Mode • ±8% full scale overrange mode (15th bit) • On-chip 2.5V reference • Offset shift capability • 0V to 2.5V i/p range which can be shifted by ±200mV • VDRIVE pin • Allows interfacing to low voltage processors • Power Down Options • 5mW nap mode, 2.5uW standby mode, 60mW full operation • Wide input bandwidth • Low noise T/H accepts frequencies >40MHz INL Plot www.analog.com

  12. Bipolar ADC Portfolio Product Selector Single Channel Single Channel Serial Parallel Single Channel 3 V Interface Serial Eight Channel Parallel Eight Channel Single Channel www.analog.com

  13. ADCs with Bipolar InputsAD789x Series Released • No Need to Offset the Input Voltage for Bipolar Signals • AD789x series have true bipolar inputs ranges from 2.5 V to 10 V • Better offset and gain system specs without ext offsetting resistors • More Robust Input Circuitry • Input series resistors • 17 V Absolute maximum ratings • Higher Chip Integration – Ease of Use • Choice of serial, parallel, single-channel or multi-channel ADCs • On-chip resistors gives more flexible input range selection • 2.5 V on-chip reference, ext reference is optional • Pin Compatible Upgrade to 14-Bits • AD7895 – 12-Bits • AD7894 – 14-Bits www.analog.com

  14. ADC 8-bit to 12-bit www.analog.com

  15. AD7477A AD7478A • As per AD7476A except • 10-bit resolution • As per AD7476A except • 8-bit resolution AD7476A – 1Msps SC70 • Smallest ADC available • SC70 package is 50% smaller than closest competitor • TI&LTC smallest package is MSOP, Maxim is SOT23 • Flexible Throughput/Power Management System • Power down capability without pin re-configuration (patent protection) • 0.9mW at 100ksps, 3.6mW at 1Msps • 20MHz serial interface • SPI, QSPI, MICROWIRE, DSP Compatible • On-chip reference • Derived from the power supply • Unipolar analog i/p • Ain 0V to VDD www.analog.com

  16. AD7440 AD7451 AD7441 • As per AD7450A except • 10-bit resolution • As per AD7450A except • Pseudo differential inputs • As per AD7440 except • Pseudo differential inputs AD7450A – Differential 1Msps • Fastest Fully Differential 12-bit ADC available • Both analog i/ps extend to the rails • Full scale i/p is 2 * Vref • Fully differential or Pseudo Differential options • SOT-23 package • Uses 40% less board area than closest competitor • Variable voltage Vref i/p • Fully functional with reference of 100mV • Wide bandwidth differential track and hold • 3dB point of 20MHz • Flexible Throughput/Power Management System • 0.9mW at 100ksps, 3.6mW at 1Msps • Power down capability without pin re-configuration (patent protection) www.analog.com

  17. Availability & Price AD7940 • Samples available now • Full production release Aug’03 • 1k Price: $6.00 • As per AD7680 except • 14-bits resolution AD7680 – World’s Smallest 16-bit ADC • Small Package but still offers high performance • 15-Bits No Missing Codes • INL of ±4 LSB • 100kSPS Sampling Rate • Reduce board area and power, Ideal for Handheld Equipment • 3mW typ at 100kSPS 2.7V Supply • Powerdown Mode: 0.5uA • Specified for AC performance • 85dB SINAD @10kHz • Choice of serial interface • SPI/QSPI/uWIRE/DSP Compatible www.analog.com

  18. World’s Lowest Power ADCs AD7466: 12-Bits, AD7467: 10-Bits, AD7468: 8-Bits • Lowest Power: • 1 mW max @ 100kSPS with 3 V Supplies • 0.6 mW max @ 100kSPS with 1.8 V Supplies • Low Voltage Supply: • 1.8 V to 3.3 V • Small Package: • 6-Pin SOT-23 Package • SPI/QSPI/DSP Compatible Interface • Throughput Rate: • 200kSPS(B) • Standby Mode: • 1µA max • Wide Input Bandwidth: • 500 kHz typ • No Pipeline Delays 1.8 V Low Power AD746x ADC Family 6-Lead SOT-23 Package www.analog.com

  19. AD7918/AD7908 AD7904, AD7914, AD7924 • As per AD7928 except • AD7918: 10-bit resolution • AD7908: 8-bit resolution • 4-channel Multiplexer • AD7924: 12-bit resolution • AD7914: 10-bit resolution • AD7904: 8-bit resolution AD7928: 1Msps Serial Mu’xed ADC • Mutiplex more signals faster • 8-channel single-ended multiplexer • 1Msps throughput • Multiplex and convert high frequency signals • With the 1Msps throughput and fullpower input bandwidth of 8MHz • Full AC specification • Predetermine the sampling of the signals • On-chip sequences allows a sequence of channels to be selected • Serial Interface reduced board routing • SPI/QSPI/DSP compatible • Increase throughput while reducing power consumption • 6 mW max at 1 Msps, 3 V Supply • Flexible Power Management over the Serial Interface AC Performance www.analog.com

  20. Multi- Channel Inputs 10-, 12-Bit 1.5 Msps ADC T/H Reference Control Logic Parallel Interface Data Sequencer 12 & 10 Bit, Parallel ADCs with a Sequencer AD793x • AD793x – Worlds Fastest, Multiplexed, SAR Converters • Throughput rate up to 1.5Msps • Multi-Channel Inputs • Parallel Interface • Accurate On-Chip 2.5V Reference • 4/8 Analog Inputs with a Channel Sequencer • Low Power • 8mW Max at 1.5Msps • 3V or 5V Power Supply AD793x Block Diagram www.analog.com

More Related