LTC2184

Features n Two-Channel Simultaneously Sampling ADC n 76.8dB SNR n 90dB SFDR n Low Power: 370mW/308mW/200mW Total 185mW/154mW/100mW per Channel n Single 1.8V Supply n CMOS, DDR CMOS, or DDR LVDS Outputs n Selectable Input Ranges: 1VP-P to 2VP-P n 550MHz Full Power Bandwidth S/H n Optional Data Output Randomizer n Optional Clock Duty Cycle Stabilizer n Shutdown and Nap Modes n Serial SPI Port for Configuration n 64-Pin (9mm × 9mm) QFN Package Applications n Communications n Cellular Base Stations n Software Defined Radios n Portable Medical Imaging n Multi-Channel Data Acquisition n Nondestructive Testing LTC2185/LTC2184/LTC2183 16-Bit, 125/105/80Msps Low Power Dual ADCs Description The LTC®2185/LTC2184/LTC2183 are two-channel simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 76.8dB SNR and 90dB spurious free dynamic range (SFDR). Ultralow jitter of 0.07psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±2LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is 3.4LSBRMS. The digital outputs can be either full rate CMOS, Double Data Rate CMOS, or Double Data Rate LVDS. A separate output power supply allows the CMOS output swing to range from 1.2V to 1.8V. The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, ...