Single/Dual, 14-Bit 250Msps ADC Family Provides High SFDR Undersampling Performance

Operating from a single 1.8V supply, the dual LTC2157-14 consumes 303mWper channel at 250Msps and offers signal to noise ratio (SNR) performance of 70dB and SFDR of 90dB at baseband with an easy-to-drive 1.5Vp-p input range. Pin-compatible speed grade options include 170Msps and 210Msps in 14-bit and 12-bit resolutions. Analog full power bandwidth of 1.25GHz and ultralow jitter of 0.15psRMS enables undersampling of IF frequencies with excellent noise performance.

Available in compact 9mm x 9mm (dual) and 6mm x 6mm (single) QFN packages, the ADCs are offered in commercial or industrial temperature grades. Demonstration boards and samples are immediately available.