The AD9260 is a 16-bit, high speed oversampled analog-to-digital converter (ADC) that offers exceptional dynamic range over a wide bandwidth. The AD9260 is manufactured on an advanced CMOS process. High dynamic range is achieved with an oversampling ratio of 8X through the use of a proprietary technique which combines the advantages of sigma-delta and pipeline converter technologies.
The AD9260 is a switched-capacitor ADC with a nominal full-scale input range of 4V. It offers a differential input with 60dB of common mode rejection of common mode signals. The signal range of each differential input is +/- 1V centered on a 2.0V common -mode level.
The on-chip decimation filter is configured for maximum performance and flexibility. A series of three half-band FIR filter stages provide 8X decimation filtering with 85 dB of stopband attenuation and 0.004dB of passband ripple. An on-board digital multiplexer allows the user to access data from the various stages of the decimation filter. The on-chip programmable reference and reference buffer amplifier are configured for maximum accuracy and flexibility. An external reference can also be chosen to suit the users specific dc accuracy and drift requirements.
The AD9260 operates on a single +5V supply, typically consuming 550mW of power. A power scaling circuit is provided allowing the AD9260 to operate at power consumption levels as low as 150mW at reduced clock and data rates. The AD9260 is available in a 44-pin MQFP package and is specified to operate over the industrial temperature range.
|Title||Content Type||File Type|
|AD9260: High Speed Oversampling CMOS ADC with 16-Bit Resolution at a 2.5 MHz Output Word Rate Data Sheet (Rev C, 08/2004) (pdf, 1351 kB)||Data Sheets|
|AN-311: How to Reliably Protect CMOS Circuits Against Power Supply Overvoltaging (pdf, 217 kB)||Application Notes|
|AN-282: Fundamentals of Sampled Data Systems (pdf, 2131 kB)||Application Notes|
|AN-737: How ADIsimADC Models an ADC (pdf, 373 kB)||Application Notes|
|AN-905: VisualAnalog Converter Evaluation Tool Version 1.0 User Manual (pdf, 2124 kB)||Application Notes|
|AN-935: Designing an ADC Transformer-Coupled Front End (pdf, 363 kB)||Application Notes|
|AN-835: Understanding High Speed ADC Testing and Evaluation (pdf, 985 kB)||Application Notes|
|AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (pdf, 370 kB)||Application Notes|
AN-345: Grounding for Low-and-High-Frequency Circuits
(pdf, 455 kB)
Know Your Ground and Signal Paths for Effective Designs. Current Flow Seeks Path of Least Impedance-Not Just Resistance....
|AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (pdf, 291 kB)||Application Notes|
AN-501: Aperture Uncertainty and ADC System Performance
(pdf, 227 kB)
A Key Concern in IF Sampling is that of Aperture Uncertainty (Jitter)
AN-397: Electrically Induced Damage to Standard Linear Integrated Circuits:
(pdf, 149 kB)
The Most Common Causes and the Associated Fixes to Prevent Reoccurrence
|AN-202: An IC Amplifier User’s Guide to Decoupling, Grounding, and Making Things Go Right for a Change (pdf, 76 kB)||Application Notes|
|UG-173: High Speed ADC USB FIFO Evaluation Kit (HSC-ADC-EVALB-DCZ) (pdf, 774 kB)||User Guides|
Oversampling ADCs for 16-Bit Resolution
(Analog Dialogue, Vol. 32, No. 1, 1998)
|MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)||Technical Articles|
Understanding Continuous-Time, Discrete-Time Sigma-Delta ADCs And Nyquist ADCs
Due to the high performance, efficiency, and ease of use of the CT-ΣΔ architecture, manufacturers of high-performance analog-to-digital converters (ADCs) are now bringing this converter architecture to market as a standard product.
(Electronic Design, February 20, 2009)
Multi-channel Data-acq Board Uses Switched-cap Over-sampling A/Ds
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