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AD7366-5 Datasheet(PDF) 1 Page - Analog Devices |
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AD7366-5 Datasheet(HTML) 1 Page - Analog Devices |
1 / 29 page True Bipolar Input, 12-/14-Bit, 2-Channel, Simultaneous Sampling SAR ADCs AD7366-5/AD7367-5 Rev. B 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 ©2007-2011 Analog Devices, Inc. All rights reserved. FEATURES Dual 12-bit/14-bit, 2-channel ADCs 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: 500 kSPS Simultaneous conversion with read in less than 2 μs High analog input impedance Low current consumption 5.1 mA typical in normal mode 320 nA typical in shutdown mode AD7366-5 72 dB SNR at 50 kHz input frequency 12-bit no missing codes AD7367-5 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 AD7366-5/AD7367-5 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 AD7366-5/AD7367-51 are dual, 12-/14-bit, low power, successive approximation analog-to-digital converters (ADCs) that feature throughput rates up to 500 kSPS. Each device contains two ADCs, which are both preceded by a 2-channel multiplexer, and a low noise, wide bandwidth, track-and-hold amplifier. The AD7366-5/AD7367-5 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 parts to accept high voltage bipolar signals in addition to reducing power consumption and package size. The AD7366-5/AD7367-5 can accept true bipolar analog input signals in the ±10 V range, ±5 V range, and 0 V to +10 V range. 1 Protected by U.S. Patent No. 6,731,232. 2 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. The devices 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 AD7366-5/AD7367-5 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. True bipolar analog input signals can be accepted, as well as ±10 V, ±5 V, ±12 V (with external reference), and 0 V to +10 V unipolar signals. 2. Two complete ADC functions allow simultaneous sampling and conversion of two channels. 3. A 500 kSPS serial interface is SPI-/QSPI™-/MICROWIRE™-/ DSP-compatible. Table 1. Related Products Device Resolution Throughput Rate No. 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 |
Número de pieza similar - AD7366-5_15 |
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Descripción similar - AD7366-5_15 |
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