ADS42LB49 - Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

The ADS42LB49 and ADS42LB69 are a family of high-linearity, dual-channel, 14- and 16-bit,
250-MSPS, analog-to-digital converters (ADCs) supporting DDR and QDR LVDS output interfaces. The buffered analog input provides uniform input impedance across a wide frequency range while minimizing sample-and-hold glitch energy. A sampling clock divider allows more flexibility for system clock architecture design. The ADS42LBx9 provides excellent spurious-free dynamic range (SFDR) over a large input frequency range with low-power consumption.

• Dual Channel
• 14- and 16-Bit Resolution
• Maximum Clock Rate: 250 MSPS
• Analog Input Buffer with High Impedance Input
• Flexible Input Clock Buffer with
  Divide-by-1, -2, and -4
• 2-V_PP and 2.5-V_PP Differential Full-Scale Input (SPI-Programmable)
• DDR or QDR LVDS Interface
• 64-Pin VQFN Package (9-mm × 9-mm)
• Power Dissipation: 820 mW/ch
• Aperture Jitter: 85 f_S
• Internal Dither
• Channel Isolation: 100 dB
• Performance at f_IN = 170 MHz at 2 V_PP, –1 dBFS
  • SNR: 73.2 dBFS
  • SFDR:
    • 87 dBc (HD2 and HD3)
    • 100 dBc (Non HD2 and HD3)
• Performance at f_IN = 170 MHz:
  2.5 V_PP, –1 dBFS
  • SNR: 74.9 dBFS
  • SFDR:
    • 85 dBc (HD2 and HD3)
    • 97 dBc (Non HD2 and HD3)