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AD9240:  Complete 14-Bit, 10 MSPS Monolithic A/D Converter

Product Details


The AD9240 is a 10 MSPS, single supply, 14-bit analog-to- digital converter (ADC). It combines a low cost, high speed CMOS process and a novel architecture to achieve the resolution and speed of existing hybrid implementations at a fraction of the power consumption and cost. It is a complete, monolithic ADC with an on-chip, high performance, low noise sample-and-hold amplifier and programmable voltage reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application. The device uses a multistage differential pipelined architecture with digital output error correction logic to guarantee no missing codes over the full operating temperature range.

The input of the AD9240 is highly flexible, allowing for easy interfacing to imaging, communications, medical and data-acquisition systems. A truly differential input structure allows for both single-ended and differential input interfaces of varying input spans. The sample-and-hold amplifier (SHA) is equally suited for multiplexed systems that switch full-scale voltage levels in successive channels as well as sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. The AD9240 also performs well in communication systems employing Direct-IF Down Conversion, since the SHA in the differential input mode can achieve excellent dynamic performance well beyond its specified Nyquist frequency of 5 MHz.

A single clock input is used to control all internal conversion cycles. The digital output data is presented in straight binary output format. An out-of-range (OTR) signal indicates an overflow condition which can be used with the most significant bit to determine low or high overflow.

FEATURES and BENEFITS

  • Low Power Dissipation: 285 mW
  • Single +5 V Supply
  • Integral Nonlinearity Error: 2.5 LSB
  • Differential Nonlinearity Error: 0.6 LSB
  • Input Referred Noise: 0.36 LSB
  • On-Chip Sample-and-Hold Amplifier and Voltage Reference
  • Signal-to-Noise and Distortion
    Ratio: 77.5 dB
  • Spurious-Free Dynamic Range: 90 dB
  • Out-of-Range Indicator
  • Straight Binary Output Data
  • 44-Lead MQFP

Functional Block Diagram for AD9240

Documentation

Title Content Type File Type
AD9240: Complete 14-Bit, 10 MSPS Monolithic A/D Converter Data Sheet  (Rev B, 03/2010) (pdf, 328 kB) Data Sheets PDF
AN-282: Fundamentals of Sampled Data Systems  (pdf, 2131 kB) Application Notes PDF
AN-737: How ADIsimADC Models an ADC  (pdf, 373 kB) Application Notes PDF
AN-905: VisualAnalog Converter Evaluation Tool Version 1.0 User Manual  (pdf, 2124 kB) Application Notes PDF
AN-935: Designing an ADC Transformer-Coupled Front End  (pdf, 363 kB) Application Notes PDF
AN-835: Understanding High Speed ADC Testing and Evaluation  (pdf, 985 kB) Application Notes PDF
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated  (pdf, 370 kB) Application Notes PDF
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....
Application Notes PDF
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter  (pdf, 291 kB) Application Notes PDF
AN-501: Aperture Uncertainty and ADC System Performance  (pdf, 227 kB)
A Key Concern in IF Sampling is that of Aperture Uncertainty (Jitter)
Application Notes PDF
UG-173: High Speed ADC USB FIFO Evaluation Kit (HSC-ADC-EVALB-DCZ)  (pdf, 774 kB) User Guides PDF
14-Bit Monolithic ADCs: First to Sample Faster than 1 MSPS
(Analog Dialogue, Vol. 31, No. 2, 1997)
Analog Dialogue HTML
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
Digital X-Ray Technology Improves Patient Experience and Physician Diagnostics Technical Articles HTML
DNL and Some of its Effects on Converter Performance
... by Brad Brannon, Analog Devices, Inc. (Wireless Design & Development, June 2001)
Technical Articles HTML
Correlating High-Speed ADC Performance to Multicarrier 3G Requirements
by Brad Brannon (RF Design, 6/1/2003)
Technical Articles HTML
Proper Grounding Is Critical For High-Speed Systems
... by Walt Kester and James Bryant, Analog Devices, Inc. (Wireless Systems Design, May 2000)
Technical Articles HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

AD9240 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9240AS Status: Production 44 ld MQFP (13.20mm wide) 44 Ind Tray, 96 $24.91 $21.18 N  Material Info Notify Me Purchase
AD9240ASRL Status: Production 44 ld MQFP (13.20mm wide) 44 Ind Reel, 800 - $21.18 N  Material Info Notify Me Purchase
AD9240ASZ Status: Production 44 ld MQFP (13.20mm wide) 44 Ind Tray, 96 $21.61 $18.37 Y  Material Info PCN Purchase
AD9240ASZRL Status: Production 44 ld MQFP (13.20mm wide) 44 Ind Reel, 800 - $18.37 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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