TI ADS4225IRGCT

The ADS424x and ADS422x series devices are low-speed variants of the ultra-low-power series of dual-channel 14-bit/12-bit analog-to-digital converters (ADCs). These devices achieve high dynamic performance through innovative design techniques and operate with a 1.8V power supply, consuming extremely low power. This topology makes the ADS424x/422x highly suitable for multi-carrier, high-bandwidth communication converters. The ADS424x/422x features fine gain options, which can be used to improve the SFDR performance within a lower full-scale output range. These devices include a DC offset correction loop to eliminate the ADC offset. Both the double data rate (DDR) LVDS and parallel CMOS digital output interfaces are available in a compact VQFN-64 package. These devices incorporate an internal reference and eliminate the traditional reference pins and associated decoupling capacitors. All devices are rated to operate within the industrial temperature range (-40°C to 85°C).

• Ultra-low power, 1.8V single-supply, CMOS output:
  • Total power consumption of 183mW at 65MSPS
  • Total power consumption of 277mW at 125MSPS
  • Total power consumption of 332mW at 160MSPS
• High dynamic performance:
  • SFDR of 88dBc at 170MHz
  • SNR of 71.4dBFS at 170MHz
• Crosstalk: >90dB at 185MHz
• Programmable gain up to 6dB for SNR/SFDR performance trade-off
• DC offset correction
• Output interface options:
  • 1.8V parallel CMOS interface
  • DDR LVDS with programmable swing:
    • Standard swing: 350mV
    • Low swing: 200mV
• Input clock amplitude as low as 200mV_PP
• Package: VQFN-64 (9.00mm x 9.00mm)

• Wireless communication infrastructure
• Software-defined radio
• Power amplifier linearization