LTC2268-12

LTC2268-12/ LTC2267-12/LTC2266-12 12-Bit, 125Msps/105Msps/ 80Msps Low Power Dual ADCs Features n 2-Channel Simultaneous Sampling ADC n 70.6dB SNR n 88dB SFDR n Low Power: 292mW/238mW/200mW Total, 146mW/119mW/100mW per Channel n Single 1.8V Supply n Serial LVDS Outputs: 1 or 2 Bits per Channel n Selectable Input Ranges: 1VP-P to 2VP-P n 800MHz Full Power Bandwidth S/H n Shutdown and Nap Modes n Serial SPI Port for Configuration n Pin Compatible 14-Bit and 12-Bit Versions n 40-Pin (6mm × 6mm) QFN Package Applications n Communications n Cellular Base Stations n Software Defined Radios n Portable Medical Imaging n Multichannel Data Acquisition n Nondestructive Testing L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Description The LTC®2268-12/LTC2267-12/LTC2266-12 are 2-channel, simultaneous sampling 12-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 70.6dB SNR and 88dB spurious free dynamic range (SFDR). Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±0.3LSB INL (typ), ±0.1LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.3LSBRMS. The digital outputs are serial LVDS to minimize the number of data lines. Each cha...