ADI AD9252ABCPZRL7-50

The AD9252 is an octal, 14-bit, 50 MSPS ADC with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. Operating at a conversion rate of up to 50 MSPS, it is optimized for outstanding dynamic performance and low power in applications where a small package size is critical. The ADC requires a single 1.8 V power supply and LVPECL-/ CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications. The ADC automatically multiplies the sample rate clock for the appropriate LVDS serial data rate. A data clock (DCO) for capturing data on the output and a frame clock (FCO) for signaling a new output byte are provided. Individual channel power-down is supported and typically consumes less than 2 mW when all channels are disabled. The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom userdefined test patterns entered via the serial port interface (SPI). The AD9252 is available in an RoHS compliant, 64-lead LFCSP. It is specified over the industrial temperature range of -40°C to +85°C.

• 8 analog-to-digital converters (ADCs) integrated into 1 package
• 93.5 mW ADC power per channel at 50 MSPS
• SNR = 73 dB (to Nyquist)
• ENOB = 12 bits
• SFDR = 84 dBc (to Nyquist)
• Excellent linearity DNL = ±0.4 LSB (typical); INL = ±1.5 LSB (typical)
• Serial LVDS (ANSI-644, default) Low power, reduced signal option (similar to IEEE 1596.3)
• Data and frame clock outputs
• 325 MHz, full-power analog bandwidth
• 2 V p-p input voltage range
• 1.8 V supply operation
• Serial port control
• Full-chip and individual-channel power-down modes
• Flexible bit orientation
• Built-in and custom digital test pattern generation
• Programmable clock and data alignment
• Programmable output resolution
• Standby mode

• Medical imaging and nondestructive ultrasound
• Portable ultrasound and digital beam-forming systems
• Quadrature radio receivers
• Diversity radio receivers
• Tape drives
• Optical networking
• Test equipment