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The KAD5514P is a family of low-power, high performance 14-bit, analog-to-digital converters. Designed with Intersil’s proprietary FemtoCharge™ technology on a standard CMOS process, the family supports sampling rates of up to 250MSPS. The KAD5514P is part of a pin-compatible portfolio of 10, 12 and 14-bit A/Ds with sample rates ranging from 125MSPS to 500MSPS.

A Serial Peripheral Interface (SPI) port allows for extensive configurability, as well as fine control of various parameters such as gain and offset.

Digital output data is presented in selectable LVDS or CMOS formats. The KAD5514P is available in 72 Ld and 48 Ld QFN packages with an exposed paddle. Operating from a 1.8V supply, performance is specified across the full industrial temperature range (-40°C to +85°C).

Key Features

• Programmable gain, offset and skew control
• 950MHz analog input bandwidth
• 60fs clock jitter
• Over-range indicator
• Selectable clock divider: ÷1, ÷2 or ÷4
• Clock phase selection
• Nap and sleep modes
• Two’s complement, gray code or binary data format
• DDR LVDS-compatible or LVCMOS outputs
• Programmable built-in test patterns
• Single-supply 1.8V operation
• Pb-free (RoHS compliant) Key Specifications
• SNR = 69.4dBFS for fIN = 105MHz (-1dBFS)
• SFDR = 82.2dBc for fIN = 105MHz (-1dBFS)
• Total Power Consumption
  • 429/345mW at 250/125MSPS (SDR Mode)
  • 390/309mW at 250/125MSPS (DDR Mode)

Applications

• Power amplifier linearization
• Radar and satellite antenna array processing
• Broadband communications
• High-performance data acquisition
• Communications test equipment
• WiMAX and microwave receivers