14-Bit, 125 MSPS, 1.8 V Dual Analog-to-Digital Converter Enhanced Product AD9648-EP FEATURES FUNCTIONAL BLOCK DIAGRAM AVDD AGND SDIO SCLK CSB 1.8 V analog supply operation 1.8 V CMOS or LVDS outputs SPI SNR = 74.5 dBFS at 70 MHz ORA SFDR = 91 dBc at 70 MHz Low power: 106 mW/channel at 125 MSPS PROGRAMMING DATA D13A VIN+A ADC Differential analog input with 650 MHz bandwidth VINA D0A IF sampling frequencies to 200 MHz DCOA On-chip voltage reference and sample-and-hold circuit VREF 2 V p-p differential analog input SENSE DRVDD DNL = 0.5 LSB at 25C AD9648-EP REF VCM Serial port control options SELECT ORB RBIAS Offset binary, gray code, or twos complement data format Optional clock duty cycle stabilizer D13B VINB ADC Integer 1-to-8 input clock divider VIN+B D0B Data output multiplex option DCOB Built-in selectable digital test pattern generation Energy-saving power-down modes DIVIDE DUTY CYCLE MODE 1 TO 8 STABILIZER CONTROLS Data clock out with programmable clock and data alignment CLK+ CLK SYNC DCS PDWN DFS OEB ENHANCED PRODUCT FEATURES NOTES 1. PIN NAMES ARE FOR THE CMOS PIN CONFIGURATION ONLY Supports defense and aerospace applications (AQEC SEE FIGURE 7 FOR LVDS PIN NAMES. standard) Figure 1. Military temperature range: 55C to +125C PRODUCT HIGHLIGHTS Controlled manufacturing baseline Qualification data available on request 1. The AD9648-EP operates from a single 1.8 V analog power supply and features a separate digital output driver supply APPLICATIONS to accommodate 1.8 V CMOS or LVDS logic families. Communications 2. The sample-and-hold circuit maintains excellent Diversity radio systems performance for input frequencies up to 200 MHz and is Multimode digital receivers designed for low cost, low power, and ease of use. GSM, EDGE, W-CDMA, LTE, 3. A standard serial port interface supports various product CDMA2000, WiMAX, TD-SCDMA features and functions, such as data output formatting, I/Q demodulation systems internal clock divider, power-down, DCO/data timing and Smart antenna systems offset adjustments. Broadband data applications 4. The AD9648-EP is packaged in a 64-lead, RoHS-compliant Battery-powered instruments LFCSP that is pin-compatible with the AD9650/AD9269/ Handheld scope meters AD9268 16-bit ADC, the AD9258 14-bit ADC, the AD9628/ Portable medical imaging AD9231 12-bit ADCs, and the AD9608/AD9204 10-bit Ultrasound ADCs, enabling a simple migration path between 10-bit Radar/LIDAR and 16-bit converters sampling from 20 MSPS to 125 MSPS. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20152016 Analog Devices, Inc. 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Technical Support www.analog.com MUX OPTION CMOS/LVDS CMOS/LVDS OUTPUT BUFFER OUTPUT BUFFER 13386-001AD9648-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 Digital Specifications ....................................................................6 Enhanced Product Features ............................................................ 1 Switching Specifications .................................................................7 Applications ....................................................................................... 1 Timing Specifications ...................................................................8 Functional Block Diagram .............................................................. 1 Absolute Maximum Ratings ......................................................... 10 Product Highlights ........................................................................... 1 Thermal Characteristics ............................................................ 10 Revision History ............................................................................... 2 ESD Caution................................................................................ 10 General Description ......................................................................... 3 Pin Configurations and Function Descriptions ......................... 11 Specifications ..................................................................................... 4 Outline Dimensions ....................................................................... 17 DC Specifications ........................................................................... 4 Ordering Guide .......................................................................... 17 AC Specifications ........................................................................... 5 REVISION HISTORY 1/16Rev. A to Rev. B 12/15Rev. 0 to Rev. A Change to Product Highlights Section .......................................... 1 Changes to Figure 3 ........................................................................... 8 Changes to General Description Section ...................................... 3 Changes to Figure 4 ........................................................................... 9 Change to Differential Nonlinearity (DNL) Parameter, Table 1 ................................................................................................ 4 9/15Revision 0: Initial Version Changes to Signal-to-Noise-Ratio (SNR) Parameter, Signal-to- Noise and Distortion (SINAD) Parameter, and Worst Other (Harmonic or Spur) Parameter, Table 2 ........................................ 5 Changes to Table 6 .......................................................................... 10 Rev. B Page 2 of 17