AD9260 16-Bit High Speed Oversampled A/D Converter _ BDTIC a Leading Distributor in China

AD9260 16-Bit High Speed Oversampled A/D Converter

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.

Features and Benefits

8x Oversampling Mode, 20 MSPS Clock
2.5 MHz Output Word Rate
1.01 MHz Signal Passband w/ 0.004 dB Ripple
Signal-to-Noise Ratio: 88.5 dB
Total Harmonic Distortion: –96 dB
Spurious Free Dynamic Range:
100 dB
Input Referred Noise: 0.6 LSB

Selectable Oversampling Ratio: 1x, 2x, 4x, 8x
Selectable Power Dissipation:
150 mW to 585 mW
85 dB Stopband Attenuation
Single +5 V Analog Supply, +5 V/+3 V Digital Supply
Synchronize Capability for Parallel ADC Interface

Analog to Digital Converters

Data Sheets

Document	note
AD9260: High Speed Oversampling CMOS ADC with 16-Bit Resolution at a 2.5 MHz Output Word Rate Data Sheet (Rev. C)	PDF 1351 kB

Application Notes

Document	note
AN-905: Visual Analog Converter Evaluation Tool Version 1.0 User Manual (Rev. 0)	PDF 2124 kB
AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)	PDF 985 kB
AN-501: Aperture Uncertainty and ADC System Performance (Rev. A)	PDF 227 kB
AN-282: Fundamentals of Sampled Data Systems	PDF 2131 kB
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0)	PDF 291.7 K
AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0)	PDF 363 kB
AN-345: Grounding for Low-and-High-Frequency Circuits	PDF 455 kB
AN-202: An IC Amplifier User’s Guide to Decoupling, Grounding, and Making Things Go Right for a Change (Rev. B)	PDF 76.97 K
AN-311: How to Reliably Protect CMOS Circuits Against Power Supply Overvoltaging	PDF 217 kB
AN-737: How ADIsimADC Models an ADC (Rev. B)	PDF 373 kB
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (Rev. 0)	PDF 370.2 K
AN-741: Little Known Characteristics of Phase Noise (Rev. 0)	PDF 1679 kB
AN-397: Electrically Induced Damage to Standard Linear Integrated Circuits:	PDF 149 kB