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AD7980BRMZ bảng dữ liệu(PDF) 1 Page - Analog Devices |
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1 / 28 page 16-Bit, 1 MSPS, PulSAR ADC in MSOP/LFCSP Data Sheet AD7980 Rev. F Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2007–2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES 16-bit resolution with no missing codes Throughput: 1 MSPS Low power dissipation 4 mW at 1 MSPS (VDD only) 7 mW at 1 MSPS (total) 70 µW at 10 kSPS INL: ±0.6 LSB typical, ±1.25 LSB maximum SINAD: 91.25 dB at 10 kHz THD: −110 dB at 10 kHz Pseudo differential analog input range 0 V to VREF with VREF between 2.5 V to 5 V No pipeline delay Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Proprietary serial interface SPI/QSPI/MICROWIRE™/DSP compatible Daisy-chain multiple ADCs and busy indicator 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP, same space as SOT-23 Wide operating temperature range: −40°C to +125°C APPLICATIONS Battery-powered equipment Communications Automatic test equipment (ATE) Data acquisitions Medical instruments TYPICAL APPLICATION CIRCUIT Figure 1. GENERAL DESCRIPTION The AD79801 is a 16-bit, successive approximation, analog-to- digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, it samples an analog input, IN+, between 0 V to REF with respect to a ground sense, IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput. The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO. The AD7980 is housed in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +125°C. 1 Protected by U.S. Patent 6,703,961. Table 1. MSOP, LFCSP 14-/16-/18-/20-Bit Precision SAR ADCs and Integrated SAR ADC µModules Type 100 kSPS 250 kSPS 400 kSPS to 500 kSPS ≥1000 kSPS µModule Data Acquisition System 20-Bit AD40201 18-Bit AD7989-11 AD76911 AD40111 AD40031 AD76901 AD40071 AD7989-51 AD79821 AD79841 16-Bit AD7680 AD76851 AD76861 AD40011 ADAQ7980 AD7683 AD76871 AD76881 AD40051 ADAQ7988 AD7684 AD7694 AD76931 AD40001 AD7988-11 AD7988-51 AD40041 AD79161 AD79801 AD40081 AD79831 14-Bit AD7940 AD79421 AD79461 1 Pin for pin compatible. AD7980 REF GND VDD IN+ IN– VIO SDI SCK SDO CNV 1.8V TO 5.0V 3- OR 4-WIRE INTERFACE (SPI, DAISY CHAIN, CS) 2.5V TO 5V 2.5V 0 TO VREF |
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