LTC2159 Datasheet | Linear Technology

Features n 77d B SNR n 90d B SFDR n Low Power: 43m W n Single 1.8V Supply n CMOS, DDR CMOS, or DDR LVDS Outputs n Selectable Input Ranges: 1VP-P to 2VP-P n 550MHz 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 Configuration n 48-Lead (7mm × 7mm) QFN Package Applications nmunications n Cellular Base Stations n Software Defined Radios n Portable Medical Imaging n Multichannel Data Acquisition n Nondestructive Testing LTC2159 16-Bit, 20Msps Low Power ADC Description The LTC®2159 is a sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding munications applications with AC performance that includes 77d B SNR and 90d B spurious free dynamic range (SFDR). Ultralow jitter of 0.07ps RMS 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 3.2LSBRMS. The digital outputs can be either full rate CMOS, double data 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. 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 1.8V VDD ANALOG INPUT S/H 16-BIT ADC CORE 20MHz CLOCK 2159 TA01a CLOCK CONTROL 1.8V OVDD OUTPUT DRIVERS OGND D15 - CMOS - DDR CMOS OR - DDR LVDS D0 OUTPUTS INL ERROR (LSB) Integral Non-Linearity (INL) 4.0 3.0 2.0 1.0 - 1.0 - 2.0 - 3.0 - 4.0 16384 32768 49152 65536 OUTPUT CODE 2159...