ADS54T04IZAY

The ADS54T04 is a high-linearity, dual-channel, 12-bit, 500MSPS ADC that simplifies front-end filter design for wideband receivers. The analog input buffer prevents the internal switching of the on-chip track-and-hold from disturbing the signal source and provides a high-impedance input. Two output modes are available for output data — the data can be decimated by two, or the data can be output in burst mode. The burst mode output is specifically designed for DPD feedback applications, where high-resolution output data is available for short periods of time. Designed for high SFDR, this ADC delivers low-noise performance and excellent spurious-free dynamic range across a wide input frequency range. The device is available in a 196-pin BGA package and is specified over the full industrial temperature range (−40°C to 85°C).

Applications

• Communication receiver power amplifier linearization

Key features

• Dual-channel
• 12-bit resolution
• Maximum clock rate: 500Msps
• Low-swing full-scale input: 1.0Vpp
• Analog input buffer supporting high-impedance input
• Input bandwidth (3dB): >1.2GHz
• Data output interface: DDR LVDS
• 196-pin BGA package (12x12mm)
• Power dissipation: 800mW per channel
• Performance at fin = 230MHz IF
• SNR: 60.6dBFS
• SFDR: 77dBc
• Performance at fin = 700MHz IF
• SNR: 59.4dBFS
• SFDR: 70dBc
• Receive mode: 2× decimation with low-pass or high-pass filter
• Feedback mode: Burst-mode output for full-bandwidth DPD feedback