Texas Instruments ADS422x / ADS424x Dual Ultra Low-Power ADCs

Texas Instruments ADS422x and ADS424x Dual-Channel Analog-to-Digital Converters are low-speed variants of the ADS42xx ultra-low power family of ADCs. The 12-bit TI ADS422x and 14-bit TI ADS424x devices use innovative design techniques to achieve high-dynamic performance while consuming extremely low power with a 1.8V supply. This topology makes TI ADS422x and ADS424x Dual-Channel ADCs ideal for multi-carrier, wide-bandwidth communications applications.

Features

  • 250MSPS maximum sample rate
  • Ultra-low power with single 1.8V supply
    • 560mW total power at 250MSPS
  • High dynamic performance
    • 80dBc SFDR at 170MHz
    • 71.7dBFS SNR at 170MHz
  • 90dB at 185MHz crosstalk
  • Programmable gain up to 6dB for SNR/SFDR trade-off
  • DC offset correction
  • Output interface options
    • 1.8V parallel CMOS interface
    • Double data rate (DDR) LVDS with programmable swing
      • 350mV standard swing
      • 200mV low swing
  • Supports low input clock amplitude down to 200mVPP
  • 9mm×9mm, 64-pin quad flat no-lead (QFN) package

Applications

  • Wireless communications infrastructure
  • Software defined radio
  • Power amplifier linearization

Functional Block Diagrams

View Results ( 19 ) Page
部品番号 データシート 解像度 サンプリング レート SNR - 信号対雑音比 消費電力
ADS4225IRGCT ADS4225IRGCT データシート 12 bit 125 MS/s 70.8 dB 277 mW
ADS4229IRGCT ADS4229IRGCT データシート 12 bit 250 MS/s 70.5 dB 470 mW
ADS4245MRGC25EP ADS4245MRGC25EP データシート 277 mW
ADS4249IRGCT ADS4249IRGCT データシート 14 bit 250 MS/s 72.8 dB 470 mW
ADS4245IRGCT ADS4245IRGCT データシート 14 bit 125 MS/s 71.4 dB 277 mW
ADS4242IRGCT ADS4242IRGCT データシート 14 bit 65 MS/s 73.6 dB 183 mW
ADS4222IRGCT ADS4222IRGCT データシート 12 bit 65 MS/s 70.9 dB 183 mW
ADS4222IRGCR ADS4222IRGCR データシート 12 bit 65 MS/s 70.9 dB 183 mW
ADS4225IRGCR ADS4225IRGCR データシート 12 bit 125 MS/s 70.8 dB 277 mW
ADS4226IRGCR ADS4226IRGCR データシート 12 bit 160 MS/s 70.5 dB 332 mW
公開: 2011-12-12 | 更新済み: 2025-06-25