LTC2223 Datasheet | Linear Technology

Features n Sample Rate: 105Msps/80Msps n 68d B SNR up to 140MHz Input n 80d B SFDR up to 170MHz Input n 775MHz Full Power Bandwidth S/H n Single 3.3V Supply n Low Power Dissipation: 475m W/366m W n Selectable Input Ranges: ±0.5V or ±1V n No Missing Codes n Optional Clock Duty Cycle Stabilizer n Shutdown and Nap Modes n Data Ready Output Clock n Pin patible Family 135Msps: LTC2224 (12-Bit), LTC2234 (10-Bit) 105Msps: LTC2222 (12-Bit), LTC2232 (10-Bit) 80Msps: LTC2223 (12-Bit), LTC2233 (10-Bit) n 48-Pin QFN Package APPLICATIONS n Wireless and Wired Broadband munication n Cable Head-End Systems n Power Amplifier Linearization n munications Test Equipment LTC2222/LTC2223 12-Bit,105Msps/ 80Msps ADCs DESCRIPTION The LTC®2222 and LTC2223 are 105Msps/80Msps, sampling 12-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2222/ LTC2223 are perfect for demanding munications applications with AC performance that includes 68d B SNR and 80d B spurious free dynamic range for signals up to 170MHz. Ultralow jitter of 0.15ps RMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±0.3LSB INL (typ), ±0.2LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.5LSBRMS. A separate output power supply allows the outputs to drive 0.5V to 3.6V logic. The ENC+ and ENC- inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles. 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. TYPICAL APPLICATION VDD 3.3V REFH REFL FLEXIBLE REFERENCE ANALOG INPUT + INPUT S/H - 12-BIT PIPELINED ADC CORE CORRECTION LOGIC CLOCK/DUTY CYCLE CONTROL ENCODE INPUT OUTPUT DRIVERS 0VDD 0.5V TO 3.6V D11 - - -...