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LTC2173CUKG-14PBF Datasheet(PDF) 1 Page - Linear Technology |
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LTC2173CUKG-14PBF Datasheet(HTML) 1 Page - Linear Technology |
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1 / 32 page  1 21754314p LTC2175-14/ LTC2174-14/LTC2173-14 TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION 14-Bit, 125Msps/105Msps/ 80Msps Low Power Quad ADCs LTC2175-14, 125Msps, 2-Tone FFT, fIN = 70MHz and 75MHz The LTC ®2175-14/2174-14/2173-14 are 4-channel, simul- taneous sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applica- tions with AC performance that includes 73.4dB SNR and 88dB spurious free dynamic range (SFDR). Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±1LSB INL (typ), ±0.3LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1.2 LSBRMS. The digital outputs are serial LVDS to minimize the num- ber of data lines. Each channel outputs two bits at a time (2-lane mode). At lower sampling rates there is a one bit per channel option (1-lane mode). The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity. The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An internal clock duty cycle stabilizer al- lows high performance at full speed for a wide range of clock duty cycles. n 4-Channel Simultaneous Sampling ADC n 73.4dB SNR n 88dB SFDR n Low Power: 558mW/450mW/376mW n Single 1.8V Supply n Serial LVDS Outputs: 1 or 2 Bits per Channel n Selectable Input Ranges: 1VP-P to 2VP-P n 800MHz Full Power Bandwidth S/H n Shutdown and Nap Modes n Serial SPI Port for Configuration n Pin Compatible 14-Bit and 12-Bit Versions n 52-Pin (7mm × 8mm) QFN Package n Communications n Cellular Base Stations n Software Defined Radios n Portable Medical Imaging n Multichannel Data Acquisition n Nondestructive Testing 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. FREQUENCY (MHz) 0 –100 –110 –120 –70 –60 –80 –90 –50 –30 –40 –20 –10 0 10 20 30 40 50 60 217514 TA01b DATA SERIALIZER ENCODE INPUT SERIALIZED LVDS OUTPUTS 1.8V VDD 1.8V OVDD OUT1A OUT1B OUT2A OUT2B OUT3A OUT3B OUT4A OUT4B DATA CLOCK OUT FRAME OGND GND 217514 TA01 S/H CHANNEL 1 ANALOG INPUT 14-BIT ADC CORE S/H CHANNEL 2 ANALOG INPUT 14-BIT ADC CORE S/H CHANNEL 3 ANALOG INPUT 14-BIT ADC CORE S/H CHANNEL 4 ANALOG INPUT 14-BIT ADC CORE PLL Electrical Specifications Subject to Change |
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