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AD7091BCPZ-RL7 датащи(PDF) 1 Page - Analog Devices |
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AD7091BCPZ-RL7 датащи(HTML) 1 Page - Analog Devices |
1 / 20 page 1 MSPS, Ultralow Power, 12-Bit ADC in 8-Lead LFCSP Data Sheet AD7091 Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 ©2012–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Fast throughput rate of 1 MSPS Specified for VDD of 2.09 V to 5.25 V INL of ±1 LSB maximum Analog input range of 0 V to VDD Ultralow power 367 μA typical at 3 V and 1 MSPS 324 nA typical at 3 V in power-down mode Reference provided by VDD Flexible power/throughput rate management High speed serial interface: SPI®-/QSPI™-/MICROWIRE®-/ DSP-compatible Busy indicator Power-down mode 8-lead, 2 mm × 2 mm LFCSP package Temperature range: −40°C to +125°C APPLICATIONS Battery-powered systems Handheld meters Medical instruments Mobile communications Instrumentation and control systems Data acquisition systems Optical sensors Diagnostic/monitoring functions Energy harvesting FUNCTIONAL BLOCK DIAGRAM CONVERSION CONTROL LOGIC GND CLK OSC VIN REGCAP VDD 12-BIT SAR ADC SERIAL INTERFACE SDO AD7091 SCLK CS CONVST T/H Figure 1. 0 100 200 300 400 500 600 700 800 900 1000 1100 0 200 400 600 800 1000 THROUGHPUT RATE (kSPS) VDD = 3V Figure 2. Power Dissipation vs. Throughput Rate GENERAL DESCRIPTION The AD7091 is a 12-bit successive approximation register analog-to-digital converter (SAR ADC) that offers ultralow power consumption (typically 367 μA at 3 V and 1 MSPS) while achieving fast throughput rates (1 MSPS with a 50 MHz SCLK). The AD7091 operates from a single 2.09 V to 5.25 V power supply. The AD7091 also features an on-chip conversion clock and a high speed serial interface. The conversion process and data acquisition are controlled using a CONVST signal and an internal oscillator. The AD7091 has a serial interface that allows data to be read after the conversion while achieving a 1 MSPS throughput rate. The AD7091 uses advanced design and process techniques to achieve very low power dissipation at high throughput rates. The reference is derived internally from VDD. This design allows the widest dynamic input range to the ADC; that is, the analog input range for the AD7091 is from 0 V to VDD. PRODUCT HIGHLIGHTS 1. Lowest Power 12-Bit SAR ADC Available. 2. High Throughput Rate with Ultralow Power Consumption. 3. Flexible Power/Throughput Rate Management. Average power scales with the throughput rate. Power-down mode allows the average power consumption to be reduced when the device is not performing a conversion. 4. Reference Derived from the Power Supply. 5. Single-Supply Operation. |
Аналогичный номер детали - AD7091BCPZ-RL7 |
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Аналогичное описание - AD7091BCPZ-RL7 |
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