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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.


  • 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

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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
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Nine Often Overlooked ADC Specifications  (pdf, 445 kB)
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Design Tools,Models,Drivers & Software

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Evaluation Kits & Symbols & Footprints

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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.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
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 $6.09 $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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