Analog Devices Inc. AD9649BCPZ-65

Description
The AD9649 is a 14-bit, 20/40/65/80 MSPS analog-to-digital converter (ADC) that operates from a single 1.8 V analog power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families. The patented sample-and-hold circuit maintains excellent performance for input frequencies up to 200 MHz and is designed for low cost, low power, and ease of use. A standard serial port interface (SPI) supports various product features and functions, such as data output formatting, internal clock divider, power down, DCO, data output (D13 to D0) timing and offset adjustments, and voltage reference modes. The AD9649 is packaged in a 32-lead RoHS-compliant LFCSP that is pin compatible with the AD9629 12-bit ADC and the AD9609 10-bit ADC, enabling a simple migration path between 10-bit and 14-bit converters sampling from 20 MSPS to 80 MSPS.

Features
1.8 V analog supply operation
1.8 V to 3.3 V output supply
SNR: 74.3 dBFS at 9.7 MHz input, 71.5 dBFS at 200 MHz input
SFDR: 93 dBc at 9.7 MHz input, 80 dBc at 200 MHz input
Low power: 45 mW at 20 MSPS, 87 mW at 80 MSPS
Differential input with 700 MHz bandwidth
On-chip voltage reference and sample-and-hold circuit
2 Vp-p differential analog input
DNL = ±0.35 LSB
Serial port control options
Offset binary, gray code, or twos complement data format
Integer 1, 2, or 4 input clock divider
Built-in selectable digital test pattern generation
Energy-saving power-down modes
Data clock out (DCO) with programmable clock and data alignment

Applications
Communications
Diversity radio systems
Multimode digital receivers (GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA)
Smart antenna systems
Battery-powered instruments
Handheld scope meters
Portable medical imaging
Ultrasound
Radar/LIDAR