LTC2193

FEATURES n 2-Channel Simultaneous Sampling ADC n Serial LVDS Outputs: 1, 2 or 4 Bits per Channel n 76.8dB SNR n 90dB SFDR n Low Power: 432mW/360mW/249mW Total n 216mW/180mW/125mW per Channel n Single 1.8V Supply n Selectable Input Ranges: 1VP-P to 2VP-P n 550MHz Full-Power Bandwidth S/H n Shutdown and Nap Modes n Serial SPI Port for Configuration n 52-Pin (7mm × 8mm) 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 LTC2195 LTC2194/LTC2193 16-Bit, 125/105/80Msps Low Power Dual ADCs DESCRIPTION The LTC®2195/LTC2194/LTC2193 are 2-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. To minimize the number of data lines the digital outputs are serial LVDS. Each channel outputs two bits or four bits at a time. At lower sampling rates there is a one bit per channel option. The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity. The ENC+ and ENC...