Product Summary
The LTC2175IUKG-14#PBF is an A/D Converter. The LTC2175IUKG-14#PBF is 4-channel, simultaneous sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2175IUKG-14#PBF is perfect for demanding communications applications 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 number 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 applications of the LTC2175IUKG-14#PBF include Communications, Cellular Base Stations, Software Defi ned Radios, Portable Medical Imaging, Multichannel Data Acquisition and Nondestructive Testing.
Parametrics
LTC2175IUKG-14#PBF absolute maximum ratings: (1)Supply Voltages VDD, OVDD: –0.3V to 2V; (2)Digital Input Voltage (ENC+, ENC–, CS, SDI, SCK) (Note 4): –0.3V to 3.9V; (3)SDO (Note 4): –0.3V to 3.9V; (4)Digital Output Voltage: –0.3V to (OVDD + 0.3V); (5)Operating Temperature Range: –40℃ to 85℃; (6)Storage Temperature Range: –65℃ to 150℃.
Features
LTC2175IUKG-14#PBF features: (1)4-Channel Simultaneous Sampling ADC; (2)73.4dB SNR; (3)88dB SFDR; (4)Low Power: 558mW/450mW/376mW; (5)Single 1.8V Supply; (6)Serial LVDS Outputs: 1 or 2 Bits per Channel; (7)Selectable Input Ranges: 1VP-P to 2VP-P; (8)800MHz Full Power Bandwidth S/H; (9)Shutdown and Nap Modes; (10)Serial SPI Port for Configuration; (11)Pin Compatible 14-Bit and 12-Bit Versions; (12)52-Pin (7mm × 8mm) QFN Package.
Diagrams
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