The AD7091R is a 12-bit successive approximation analog-to-digital converter (ADC) that offers ultralow power consumption (typically 349 µA at 3 V and 1 MSPS) while achieving fast throughput rates (1 MSPS with a 50 MHz SCLK). The AD7091R uses advanced design and process techniques to achieve this very low power dissipation at high throughput rates. The part also features an on-chip, accurate 2.5 V reference.
Operating from a single 2.7 V to 5.25 V power supply, the part contains a wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 7 MHz. The AD7091R also features an on-chip conversion clock and high speed serial interface. The conversion process and data acquisition are controlled using a CONVST signal and an internal oscillator.
|Title||Content Type||File Type|
|AD7091R: 1 MSPS, Ultralow Power, 12-Bit ADC in 10-Lead LFCSP and MSOP Data Sheet (Rev 0, 08/2012) (pdf, 447 kB)||Data Sheets|
|AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (pdf, 640 kB)||Application Notes|
AN-931: Understanding PulSAR ADC Support Circuitry
(pdf, 299 kB)
This application note discusses in general the pitfalls that occur regularly when using SAR ADCs and, more importantly, how to easily prevent them.
|AN-932: Power Supply Sequencing (pdf, 95 kB)||Application Notes|
|AN-877: Interfacing to High Speed ADCs via SPI (pdf, 1594 kB)||Application Notes|
|AN-935: Designing an ADC Transformer-Coupled Front End (pdf, 363 kB)||Application Notes|
|AN-742: Frequency Domain Response of Switched-Capacitor ADCs (pdf, 401 kB)||Application Notes|
|CN0247: 12-Bit ,1 MSPS SAR ADC and Driver with Total Power Dissipation Less than 5 mW (pdf, 175 kB)||Circuit Note|
|AD7091R Enables Power Budget Optimization||Videos||HTML|
|The Data Conversion Handbook||Design Handbooks||HTML|
|MT-031: Grounding Data Converters and Solving the Mystery of (pdf, 144 kB)||Tutorials|
|MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design (pdf, 152 kB)||Tutorials|
|MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N + 1.76dB," and Why You Should Care (pdf, 94 kB)||Tutorials|
|UG-409: Evaluation Board for the AD7091R Analog-to-Digital Converter (pdf, 1662 kB)||User Guides|
|MS-2124: Understanding AC Behaviors of High Speed ADCs (pdf, 276 kB)||Technical Articles|
Nine Often Overlooked ADC Specifications
(pdf, 445 kB)
Analog-to-digital converters (ADCs) have many specifications; some are more important for a given application than others. Understanding these specifications and controlling external devices affecting the ADC will lead to better performance.
|Analog Devices’ A/D Converter with Internal Reference Delivers Lowest Power, Highest Accuracy and Smallest Package in its Class (05 Sep 2012)||Press Releases||HTML|
|Glossary of EE Terms||Glossary||HTML|
|Title||Content Type||File Type|
|AD7091R IBIS Model (ibs)||IBIS Models||IBS|
|AD7091R IIO 1 MSPS Ultra Low Power ADC Linux driver||Device Drivers||HTML|
|AD7091R - No-OS Driver for Renesas Microcontroller Platforms||Device Drivers||HTML|
|AD7091R - No-OS Driver for Microchip Microcontroller Platforms||Device Drivers||HTML|
|BeMicro FPGA Project for AD7091R with Nios driver||FPGA HDL||HTML|
|AD7091R FMC-SDP Interposer & Evaluation Board / Xilinx KC705 Reference Design||FPGA HDL||HTML|
|AD7091R Pmod Xilinx FPGA Reference Design||FPGA HDL||HTML|
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