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AD7366BRUZ Datasheet(PDF) 1 Page - Analog Devices |
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AD7366BRUZ Datasheet(HTML) 1 Page - Analog Devices |
1 / 28 page True Bipolar Input, Dual 1 μs, 12-/14-Bit, 2-Channel SAR ADCs AD7366/AD7367 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 www.analog.com Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved. FEATURES Dual 12-bit/14-bit, 2-channel ADC True bipolar analog inputs Programmable input ranges: ±10 V, ±5 V, 0 V to 10 V ±12 V with 3 V external reference Throughput rate: 1 MSPS Simultaneous conversion with read in less than 1μs High analog input impedance Low current consumption: 8.3 mA typical in normal mode 320nA typical in shutdown mode AD7366 72 dB SNR at 50 kHz input frequency 12-bit no missing codes AD7367 76 dB SNR at 50 kHz input frequency 14-bit no missing codes Accurate on-chip reference: 2.5 V ±0.2% –40°C to +85°C operation High speed serial interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible iCMOS® process technology Available in a 24-lead TSSOP FUNCTIONAL BLOCK DIAGRAM 12-/14-BIT SUCCESSIVE APPROXIMATION ADC DOUTA OUTPUT DRIVERS CONTROL LOGIC T/H BUF VA1 VA2 MUX REF AD7366/AD7367 VDRIVE DCAPA AVCC DVCC BUF DOUTB OUTPUT DRIVERS 12-/14-BIT SUCCESSIVE APPROXIMATION ADC T/H VB1 VB2 AGND AGND VSS DGND DCAPB CS SCLK CNVST BUSY ADDR RANGE0 RANGE1 REFSEL MUX VDD Figure 1. GENERAL DESCRIPTION The AD7366/AD73671 are dual, 12/14-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs) that feature throughput rates up to 1 MSPS. The device contains two ADCs, each preceded by a 2-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier. The AD7366/AD7367 are fabricated on the Analog Devices, Inc. industrial CMOS process (iCMOS®2), which is a technology platform combining the advantages of low and high voltage CMOS. The process allows the AD7366/AD7367 to accept high voltage bipolar signals in addition to reducing power consump- tion and package size. The AD7366/AD7367 can accept true bipolar analog input signals in the ±10 V range, ±5 V range, and 0 V to 10 V range. The AD7366/AD7367 have an on-chip 2.5 V reference that can be disabled to allow the use of an external reference. If a 3 V reference is applied to the DCAPA and DCAPB pins, the AD7366/AD7367 can accept a true bipolar ±12 V analog input. Minimum ±12 V VDD and VSS supplies are required for the ±12 V input range. PRODUCT HIGHLIGHTS 1. The AD7366/AD7367 can accept true bipolar analog input signals, as well as ±10 V, ±5 V, ±12 V (with external refer- ence), and 0 V to +10 V unipolar signals. 2. Two complete ADC functions allow simultaneous sampling and conversion of two channels. 3. 1 MSPS serial interface; SPI-/QSPI-/DSP-/MICROWIRE- compatible interface. Table 1. Related Products Device Resolution Throughput Rate Number of Channels AD7366 12-Bit 1 MSPS Dual, 2-channel AD7366-5 12-Bit 500 kSPS Dual, 2-channel AD7367 14-Bit 1 MSPS Dual, 2-channel AD7367-5 14-Bit 500 kSPS Dual, 2-channel 1 Protected by U.S. Patent No. 6,731,232. 2 iCMOS Process Technology. For analog systems designers within industrial/instrumentation equipment OEMs who need high performance ICs at higher voltage levels, iCMOS is a technology platform that enables the development of analog ICs capable of 30 V and operating at ±15 V supplies while allowing dramatic reductions in power consumption and package size, and increased ac and dc performance. |
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