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AD7476:  1MSPS, 12-Bit ADC in 6 Lead SOT-23

Product Details


The AD7476/AD7477/AD7478 are, respectively, 12-bit, 10-bit, and 8-bit, high speed, low power, successive approximation ADCs. The parts operate from a single 2.35 V to 5.25 V power supply and feature throughput rates up to 1 MSPS. Each part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 6 MHz.

The conversion process and data acquisition are controlled using CS the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is initiated at this point. There are no pipeline delays associated with these parts.

The AD7476/AD7477/AD7478 use advanced design techniques to achieve very low power dissipation at high throughput rates. The reference for the parts is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus, the analog input range for the parts are 0 V to VDD. The conversion rate is determined by the SCLK.

FEATURES and BENEFITS

  • Fast Throughput Rate: 1 MSPS
  • Specified for VDD of 2.35 V to 5.25 V
  • Low Power:
    3.6 mW Typ at 1 MSPS with 3 V Supplies
    15 mW Typ at 1 MSPS with 5 V Supplies
  • Wide Input Bandwidth: 70 dB SNR at 100 kHz Input Frequency
  • Flexible Power/Serial Clock Speed Management
  • No Pipeline Delays
  • High Speed Serial Interface SPI®/QSPI™/MICROWIRE™/DSP Compatible
  • Standby Mode: 1 µA Max
  • 6-Lead SOT-23 Package

AD7476-EP Enhanced Product Features

  • Download AD7476-EP Data Sheet (pdf)
  • Military temperature range
    (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available upon request

Functional Block Diagram for AD7476

Similar Products

Low Resolution - Single Channel Unipolar/Bipolar 8/10/12-Bit PulSAR ADCs

Documentation

Title Content Type File Type
AD7476/AD7477/AD7478: 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SOT-23 Data Sheet  (Rev F, 02/2009) (pdf, 942 kB) Data Sheets PDF
AD7476-EP: 12-Bit ADC in 6-Lead SOT-23 (Rev 0, 08/2010) (pdf, 177 kB) Data Sheets PDF
AD7476-DSCC: Microcircuit, Digital-linear, 12-Bit (V62/11611-01XE) (Rev A, 07/2011) (pdf) Data Sheets PDF
AN-1229: AD5383 Channel Monitor Function  (pdf, 91 kB) Application Notes PDF
AN-1226: AD5382 Channel Monitor Function  (pdf, 134 kB) Application Notes PDF
AN-1223: Output Channel Monitoring Using the AD5380 Multichannel DAC  (pdf, 83 kB) Application Notes PDF
AN-1227: AD5381 Channel Monitor Function  (pdf, 78 kB) Application Notes PDF
AN-1219: Power-Off Protected Data Acquisition Signal Chain Using Fault-Protected CMOS Switches  (pdf, 162 kB) Application Notes PDF
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators  (pdf, 640 kB) Application Notes PDF
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.
Application Notes PDF
AN-932: Power Supply Sequencing  (pdf, 95 kB) Application Notes PDF
AN-877: Interfacing to High Speed ADCs via SPI  (pdf, 1594 kB) Application Notes PDF
AN-935: Designing an ADC Transformer-Coupled Front End  (pdf, 363 kB) Application Notes PDF
AN-742: Frequency Domain Response of Switched-Capacitor ADCs  (pdf, 401 kB) Application Notes PDF
EE-139: Interfacing the ADSP-2191 to an AD7476 via the SPI Port  (pdf, 271 kB) Application Notes PDF
CN0303:MEMS-Based Vibration Analyzer with Frequency Response Compensation  (pdf, 275 kB) Circuit Note PDF
CN-0030: AD5390/AD5391/AD5392 Channel Monitor Function  (pdf, 82 kB) Circuit Note PDF
The Data Conversion Handbook Design Handbooks HTML
MT-031: Grounding Data Converters and Solving the Mystery of  (pdf, 144 kB) Tutorials PDF
MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design  (pdf, 152 kB) Tutorials PDF
MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N + 1.76dB," and Why You Should Care  (pdf, 94 kB) Tutorials PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
MS-2022: Seven Steps to Successful Analog-to-Digital Signal Conversion (Noise Calculation for Proper Signal Conditioning)  (pdf, 277 kB) Technical Articles PDF
MS-2124: Understanding AC Behaviors of High Speed ADCs  (pdf, 276 kB) Technical Articles PDF
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.
Technical Articles PDF
SAR ADC & Driver Quick-Match Guide  (pdf, 251 kB)
Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
Product Selection Guide PDF
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog  (pdf, 1885 kB)
8- to 18-Bit SAR ADCs with Sample Rates up to 3 MSPS -- The latest additions to ADI’s ADC portfolio offer unrivaled functionality in terms of channel count and power supply voltage, optimal power/speed ratios, and the smallest packages to meet the demands of any data acquisition application, including portable, industrial, medical, wireless, and communications.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD74xx - No-OS Driver for Renesas Microcontroller Platforms Device Drivers HTML
AD74xx - No-OS Driver for Microchip Microcontroller Platforms Device Drivers HTML
IIO Single Channel Serial ADC Linux Driver (Wiki Site) Device Drivers HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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.

Product Recommendations & Reference Designs

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Companion Products

Suggested Companion Products


Recommended Input Buffer Amplifiers for the AD7476

  • For precision, single supply, low cost, R-R In/Out, we recommend the AD8655.
  • For precision, wide supply, low cost, we recommend the ADA4000-1.
Recommended Precison References for the AD7476
  • For high precision and improved power performance, we recommend the REF193 (3V) or REF195 (5V).
  • For improved SNR at 3V, we recommend the AD780.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD7476 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7476ARTZ-500RL7 Status: Production 6 ld SOT-23 6 Ind Reel, 500 - $4.05 Y  Material Info PCN Purchase Sample
AD7476ARTZ-REEL Status: Last Time Buy 6 ld SOT-23 6 Ind Reel, 10000 - $4.05 Y  Material Info PCN/PDN Purchase
AD7476ARTZ-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - $4.05 Y  Material Info PCN Purchase Sample
AD7476BRTZ-R2 Status: Production 6 ld SOT-23 6 Ind Reel, 250 $5.72 $5.72 Y  Material Info PCN Purchase
AD7476BRTZ-REEL Status: Last Time Buy 6 ld SOT-23 6 Ind Reel, 10000 - $4.86 Y  Material Info PCN/PDN Purchase
AD7476BRTZ-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - $4.86 Y  Material Info PCN Purchase
AD7476SRTZ-500RL7 Status: Production 6 ld SOT-23 6 Mil Reel, 500 $14.29 $4.99 Y  Material Info PCN Purchase
AD7476SRTZ-EP-RL7 Status: Production 6 ld SOT-23 6 Mil Reel, 3000 - $14.75 Y  Material Info Notify Me Purchase
AD7476SRTZ-R2 Status: Production 6 ld SOT-23 6 Mil Reel, 250 $6.09 $4.99 Y  Material Info PCN Purchase
AD7476SRTZ-REEL Status: Production 6 ld SOT-23 6 Mil Reel, 10000 $6.09 $4.99 Y  Material Info PCN Purchase
AD7476SRTZ-REEL7 Status: Production 6 ld SOT-23 6 Mil Reel, 3000 $6.09 $4.99 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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