Analog Devices’ Dual 14-bit A/D Converter Reduces Power and Size in Communications, Instrumentation, Test and Measurement Applications

Jul 10 2012 - Norwood, MA
  • Analog Devices, Inc. (NASDAQ: ADI), the data converter market share leader* and a data conversion and signal processing technology innovator for more than 47 years, today introduced a two-channel, high-performance 14-bit, 125-MSPS A/D converter that reduces total power consumption by 22 percent over competing solutions. In addition to delivering high speed and wide dynamic range at lower power, the cost-effective and functionally flexible AD9645 A/D converter is available in a 5-mm × 5-mm package, which represents a 30 percent space savings over the nearest competitor. The new converter meets the performance and size requirements of the latest 3G and 4G multi-standard cellular infrastructure equipment, such as CDMA2000, WB-CDMA, LTE, TD-SCDMA and multi-carrier GSM. Other key applications include battery-powered, hand-held instruments, scopes and portable medical devices.

    The dual AD9645 A/D converter consumes only 122 mW/channel at 125 MSPS (mega samples per second) and features excellent SFDR (spurious-free dynamic range) performance of 91 dBc at 70 MHz. With an IF sampling range of up to of 200 MHz, the device is designed for use in multi-mode digital receiver architectures. A pin-compatible dual 12-bit version, the AD9635, is also available, enabling an easy migration path between 12-bit and 14-bit converters with sampling rates from 20 MSPS to 125 MSPS.

    Download data sheets and order samples:

    The AD9645 dual A/D converter features a multi-stage, differential pipelined architecture with integrated output-error-correction logic. The AD9645 is available in a 32-lead RoHS-compliant LFCSP and is specified over the industrial temperature range of –40°C to +85°C. The dual A/D converter features a space-saving serial 1.8-V LVDS digital output with two lanes per channel.

    AD9645 14-bit High-speed A/D Converter Key Features:

    Pricing, Availability, and Complementary Products

    Product Sample Availability Full Production Sample Rates (MSPS) Price Each In 1,000 Quantities Packaging
    AD9645 Dual 14-bit NOW NOW 125
    32-lead LFCSP 5 mm × 5 mm
    AD9635 Dual 12-bit NOW NOW 125
    32-lead LFCSP 5 mm × 5 mm


    Recommended Driver Amplifiers for the AD9645

    Recommended Clock Drivers for the AD9645

    • AD9645 14-bit dual A/D converter
    • AD9635 12-bit dual A/D converter
    • SNR = 74.3 dBFS at fIN up to Nyquist input frequency; 125 MSPS sampling rate
    • ENOB of 12 at fIN up to Nyquist input frequency
    • SFDR = 91 dBc at fIN = 70 MHz
    • Excellent DC linearity:
      • DNL = ±0.65 LSB typical
      • INL = ±1.5 LSB typical
    • For differential RF/IF inputs, the ultra low distortion ADL5562 diff amplifier
    • For DC-coupled inputs, the ADA4927-2 or the ADA4938-2 A/D converter drivers
    • For low jitter performance, the AD9510, AD9511, AD9512, AD9513, AD9514, AD9515, family of clock distribution solutions
    • For additional support, connect with engineers and ADI product experts on EngineerZone, an online technical support community
  • About Analog Devices
  • Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.
  • Editor's Contact Information
    • Jim Surber
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