Datasheet AD6640 (Analog Devices) - 5

AD6640 ABSOLUTE MAXIMUM RATINGS1 EXPLANATION OF TEST LEVELS Test Level Parameter Min Max Unit
I – 100% production tested. ELECTRICAL II – 100% production tested at +25°C and sample tested at AV specified temperatures. AC testing done on sample basis. CC Voltage 0 7 V DV III – Sample tested only. CC Voltage 0 7 V Analog Input Voltage 0 AVCC V IV – Parameter is guaranteed by design and characterization Analog Input Current 25 mA testing. Digital Input Voltage (ENCODE) 0 5 V V – Parameter is a typical value only. Digital Output Current –10 +10 mA VI – All devices are 100% production tested at +25°C; sample ENVIRONMENTAL2 tested at temperature extremes. Operating Temperature Range (Ambient) –40 +85 °C Maximum Junction Temperature 150 °C Lead Temperature (Soldering, 10 sec) 300 °C Storage Temperature Range (Ambient) –65 +150 °C NOTES 1Absolute maximum ratings are limiting values to be applied individually and beyond which the serviceability of the circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating conditions for an extended period of time may affect device reliability. 2Typical thermal impedances (44-lead LQFP); θJA = 55°C/W.
ORDERING GUIDE Model Temperature Range Package Description Package Option
AD6640AST –40°C to +85°C (Ambient) 44-Lead Plastic Quad Flatpack (LQFP) ST-44 AD6640ST/PCB Evaluation Board with AD6640AST
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD6640 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. –4– REV. A Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS DC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS AC SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS ORDERING GUIDE PIN FUNCTION DESCRIPTIONS PIN CONFIGURATION DEFINITION OF SPECIFICATIONS Analog Bandwidth (Small Signal) Aperture Delay Aperture Uncertainty (Jitter) Differential Nonlinearity Encode Pulsewidth/Duty Cycle Integral Nonlinearity Minimum Conversion Rate Maximum Conversion Rate Output Propagation Delay Power Supply Rejection Ratio Signal-to-Noise-and-Distortion (SINAD) Signal-to-Noise Ratio (SNR) Spurious-Free Dynamic Range (SFDR) Two-Tone Intermodulation Distortion Rejection Two-Tone SFDR Worst Harmonic Equivalent Circuits Typical Performance Characteristics THEORY OF OPERATION APPLYING THE AD6640 Encoding the AD6640 Driving the Analog Input Power Supplies Output Loading Layout Information Evaluation Boards DIGITAL WIDEBAND RECEIVERS Introduction System Description System Requirements Noise Floor and SNR Processing Gain Overcoming Static Nonlinearities with Dither Receiver Example IF Sampling Using the AD6640 as a Mix-Down Stage RECEIVE CHAIN FOR A PHASED-ARRAY CELLULAR BASE STATION OUTLINE DIMENSIONS Revision History