Description：

The LTC®2175-14/LTC2174-14/LTC2173-14 are 4-channel,simultaneous sampling 14-bit A/D converters designedfor digitizing high frequency, wide dynamic range signals.They are perfect for demanding communications applications with AC performance that includes 73.1dB SNR and88dB spurious free dynamic range (SFDR). Ultralow jitterof 0.15psRMS allows undersampling of IF frequencies withexcellent noise performance.DC specs include ±1LSB INL (typ), ±0.3LSB DNL (typ)and no missing codes over temperature. The transitionnoise is a low 1.2LSBRMS.The digital outputs are serial LVDS to minimize the number of data lines. Each channel outputs two bits at a time(2-lane mode). At lower sampling rates there is a one bitper channel option (1-lane mode). The LVDS drivers haveoptional internal termination and adjustable output levelsto ensure clean signal integrity.The ENC+ and ENC– inputs may be driven differentiallyor single-ended with a sine wave, PECL, LVDS, TTL, orCMOS inputs. An internal clock duty cycle stabilizer allows high performance at full speed for a wide range ofclock duty cycles.

Feaures：

n 4-Channel Simultaneous Sampling ADC

n 73.1dB SNR

n 88dB SFDR

n Low Power: 558mW/450mW/376mW Total,140mW/113mW/94mW per Channeln 

Single 1.8V Supplyn 

Serial LVDS Outputs: 1 or 2 Bits per Channeln 

Selectable Input Ranges: 1VP-P to 2VP-Pn 

800MHz Full Power Bandwidth S/Hn 

Shutdown and Nap Modesn 

Serial SPI Port for Configurationn 

Pin Compatible 14-Bit and 12-Bit Versionsn 

52-Pin (7mm × 8mm) QFN Package

Applications：

n Communications

n Cellular Base Stations

n Software Defined Radios

n Portable Medical Imaging

n Multichannel Data Acquisition

n Nondestructive Testing