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AD9203:  10-Bit, 40 MSPS, Low-Power Analog-to-Digital Converter

Product Details

The AD9203 is a monolithic low power, single supply, 10-bit, 40 MSPS analog-to-digital converter with an on-chip voltage reference. It uses a multistage differential pipeline architecture at 40 MSPS data rate and guarantees no missing codes over the full operating temperature range. Its input range may be adjusted between 1 V and 2 V p-p.

The ADC has an on-board programmable reference. An external reference can also be chosen to suit the DC accuracy and temperature drift requirements of an application. An external resistor can be used to reduce power consumption when operating at lower sampling rates.

A single clock input is used to control all internal conversion cycles. The digital output data is presented in straight binary or two's complement output format. An out-of-range signal (OTR) indicates an over-flow condition that can be used with the most significant bit to determine over-flow or under-flow. The AD9203 can operate with a supply range from 2.7 V to 3.6 V, attractive for low power operation in high-speed portable applications.

Fabricated on an advanced CMOS process, the AD9203 is available in a 28-pin thin shrink small outline package (28 TSSOP) specified over the industrial temperature range (-40°C to +85°C).


  • Power Dissipation: 74 mW (3 V Supply, 40 MSPS)
  • ENOB: 9.5 at Fin = 20 MHz
  • Operation Between 2.7 V to 3.6 V Supply
  • Input Range: 1 to 2 V p-p differential or single-ended
  • Differential Linearity: ±0.25 LSB
  • Adjustable On-Chip Voltage Reference
  • Power-Down (Standby) Mode, 0.65 mW
  • Adjustable Power Consumption
  • IF Under-Sampling Beyond 130 MHz
  • Out of Range Indicator
  • Two's Complement or Straight
    Binary Output
  • Internal Clamp Circuit
  • Qualified for automotive applications
    Download AD9203W Data Sheet

Functional Block Diagram for AD9203

Of Note ...

To drive this ADC in DC-coupled applications, we suggest AD8132 or AD8139. To drive this ADC in AC-coupled applications, we suggest AD8351.


Title Content Type File Type
AD9203: 10-Bit, 40 MSPS, 3 V, 74 mW A/D Converter Data Sheet (Rev B, 08/2004) (pdf, 1206 kB) Data Sheets PDF
AD9203W: 10-Bit, 40 MSPS, 3 V, 74 mWAnalog-to-Digital Converter (Rev 0, 10/2011) (pdf, 243 kB) Data Sheets PDF
AN-1142: Techniques for High Speed ADC PCB Layout  (pdf, 392 kB) Application Notes 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-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs  (pdf, 203 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-742: Frequency Domain Response of Switched-Capacitor ADCs  (pdf, 401 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
How Ultrasound System Considerations Influence Front-End Component Choice
There are major trade-offs to be considered when designing ultrasound front-end circuits. Performance parameters in the front-end circuit components affect diagnostic performance—and conversely, system configuration and objectives affect the choice of components.

(Analog Dialogue, Vol. 36, No. 3, May-July, 2002)
Analog Dialogue HTML
Ultrasound Analog Electronics Primer
(Analog Dialogue, Vol. 33, No. 5, May, 1999)
Analog Dialogue HTML
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
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
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
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD9203 IBIS Models IBIS Models 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

AD9203 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD9203ARU Status: Production 28 ld TSSOP (4.4mm) 28 Ind Tube, 50 $5.42 $4.61 N  Material Info PCN Purchase
AD9203ARURL7 Status: Production 28 ld TSSOP (4.4mm) 28 Ind Reel, 1000 - $4.61 N  Material Info PCN Purchase
AD9203ARUZ Status: Production 28 ld TSSOP (4.4mm) 28 Ind Tube, 50 $4.46 $3.80 Y  Material Info PCN Purchase
AD9203ARUZRL7 Status: Production 28 ld TSSOP (4.4mm) 28 Comm. Reel, 1000 - $3.80 Y  Material Info PCN Purchase
AD9203WARUZ Status: Production 28 ld TSSOP (4.4mm) 28 Ind Tube, 50 - - Y  Material Info Notify Me Purchase
AD9203WARUZRL7 Status: Production 28 ld TSSOP (4.4mm) 28 Ind Reel, 1000 - - Y  Material Info Notify Me 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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