Datasheet Linear Technology LTC2257CUJ-12#PBF — Datenblatt

LTC2258-12
LTC2257-12/LTC2256-12
12-Bit, 65/40/25Msps
Ultralow Power 1.8V ADCs
Features Description 71.1dB SNR
n 88dB SFDR
n Low Power: 79mW/47mW/34mW
n Single 1.8V Supply
n CMOS, DDR CMOS or DDR LVDS Outputs
n Selectable Input Ranges: 1V
P-P to 2VP-P
n 800MHz 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 Configuratio Pin Compatible 14-Bit and 12-Bit Versions
n 40-Pin (6mm × 6mm) QFN Package The LTC®2258-12/LTC2257-12/LTC2256-12 are 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 71.1dB SNR and 88dB spurious
free dynamic range (SFDR). Ultralow jitter of 0.17psRMS
allows undersampling of IF frequencies with excellent
noise performance. n Applications n n n n Communications …