Alternative Parts

  • AD7988-1
    AD7988-1

    Lower Power, with SPI Interface, Smaller Package

Overview

Features and Benefits

  • 2.5 V Internal Reference: 
    Typical Drift 3 ppm/°C 
    - Guaranteed Max Drift: 15 ppm/°C
  • Throughput: 100 kSPS
  • INL: ±2.5 LSB Max (±0.0038% of Full Scale)
  • 16 Bits Resolution with No Missing Codes
  • S/(N+D): 88 dB max @ 20 kHz; THD: -96 dB max @ 20 kHz
  • Analog Input Voltage Range: 0 V to 2.5 V
  • No Pipeline Delay
  • Parallel and Serial 5 V/3 V Interface
  • SPI®/QSPI/MICROWIRE/DSP Compatible
  • Single 5 V Supply Operation
  • Power Dissipation: 
    16 mW typ, 160 µW @ 1 kSPS 
    without REF, 40 mW typ with REF
  • Package: 
    48-Lead Quad Flat Pack (LQFP)
    48-Lead Chip Scale Package (LFCSP)
    Pin-to-Pin Compatible with 
    PulSAR® ADCs

Product Details

The AD7661 is a 16-bit, 100kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, internal reference, error correction circuits, and both serial and parallel system interface ports.

It is fabricated using Analog Devices’ high-performance, 0.6 micron CMOS process, with correspondingly low cost and is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from –40°C to +85°C.

Applications

  • Data acquisition
  • Medical instruments
  • Digital signal processing
  • Spectrum analysis
  • Instrumentation
  • Battery-powered systems
  • Process control

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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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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Evaluation Boards Pricing displayed is based on 1-piece.
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.