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AD7676:  500 kSPS CMOS 16-Bit PulSAR® ADC with INL of 1 LSB Max

Product Details

As the most accurate member of the PulSAR family, the AD7676 is the world's first 16-bit SAR ADC to guarantee an INL of 1LSB maximum.

The AD7676 is a charge redistribution SAR Analog-to-Digital Converter that operates from a single 5 V power supply. It contains a high-speed (500 kSPS) 16-Bit sampling ADC, a differential input structure, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD7676 has No Missing Codes performance, a SINAD of 92 dB, consumes only 60mW power at 500 kSPS, and comes in a 48-pin LQFP package.

The AD7676 is the most accurate 16-bit SAR ADC in the industry's history and among the fastest. It also offers a dramatic improvement in power over other parts at 60 mW @ 500 kSPS.


  • Throughput: 500 kSPS
  • INL: ±1 LSB Max (±0.0015% of Full Scale)
  • 16-Bit Resolution with No Missing Codes
  • S/(N+D): 94 dB Typ @ 45 kHz
  • THD: –110 dB Typ @ 45 kHz
  • Differential Input Range: ±2.5 V
  • Both AC and DC Specifications
  • No Pipeline Delay
  • Parallel (8 Bits/16 Bits) and Serial 5 V/3 V Interface
  • SPI®/QSPI™/MICROWIRE™/DSP Compatible
  • Single 5 V Supply Operation
  • 67 mW Typical Power Dissipation,
    15 µW @ 100 SPS

Functional Block Diagram For AD7676


Title Content Type File Type
AD7676: 16-Bit, 500 kSPS Differential ADC Data Sheet (Rev B, 10/2002) (pdf, 486 kB) Data Sheets 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
EE-248: Interfacing AD7676 ADCs to ADSP-21365 SHARC Processors  (pdf, 307 kB) Application Notes PDF
EE-247: Interfacing AD7676 ADCs to ADSP-21065L SHARC Processors  (pdf, 358 kB) Application Notes PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
Ask the Applications Engineer-27: What problems am I most likely to run into when instrumenting an industrial system?
(Analog Dialogue, Vol. 33, No. 2, February, 1999)
Analog Dialogue HTML
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
High Speed, High Accuracy 14-Bit, 16-Bit, and 18-Bit PulSAR ADCs  (pdf, 3826 kB)
A PulSAR Family Brochure (6/2006)
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

AD7676 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD7676ASTZ Status: Production 48 ld LQFP 48 Ind Tray, 250 $27.93 $25.25 Y  Material Info PCN Purchase Sample
AD7676ASTZRL Status: Production 48 ld LQFP 48 Ind Reel, 2000 - $25.25 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.

AD7676 Evaluation Kit
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-CED1Z Status: Production Evaluation Controller Board $249.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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