Features

• 73.1dB SNR
• 88dB SFDR
• Low Power: 89mW
• Single 1.8V Supply
• CMOS, DDR CMOS or DDR LVDS Outputs
• Selectable Input Ranges: 1V_P-P to 2V_P-P
• 800MHz Full-Power Bandwidth S/H
• Optional Data Output Randomizer
• Optional Clock Duty Cycle Stabilizer
• Shutdown and Nap Modes
• Serial SPI Port for Configuration
• 40-Pin (6mm × 6mm) QFN Package

Typical Application

Description

The LTC2259-16 is a sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 73.1dB SNR and 88dB spurious free dynamic range (SFDR). Ultralow jitter of 0.17ps_RMS allows undersampling of IF frequencies with excellent noise performance.

DC specs include ±4LSB INL (typical) and ±0.5LSB DNL (typical).

The digital outputs can be either full-rate CMOS, doubledata 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, 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.