Datasheet AD9280 (Analog Devices) - 5

AD9280 ABSOLUTE MAXIMUM RATINGS*
*Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating only; functional operation of the
With
device at these or any other conditions above those indicated in the operational
Respect
sections of this specification is not implied. Exposure to absolute maximum
Parameter to Min Max Units
ratings for extended periods may effect device reliability. AVDD AVSS –0.3 +6.5 V DRVDD DRVSS –0.3 +6.5 V AVSS DRVSS –0.3 +0.3 V AVDD DRVDD –6.5 +6.5 V MODE AVSS –0.3 AVDD + 0.3 V CLK AVSS –0.3 AVDD + 0.3 V Digital Outputs DRVSS –0.3 DRVDD + 0.3 V AIN AVSS –0.3 AVDD + 0.3 V VREF AVSS –0.3 AVDD + 0.3 V REFSENSE AVSS –0.3 AVDD + 0.3 V REFTF, REFTB AVSS –0.3 AVDD + 0.3 V REFTS, REFBS AVSS –0.3 AVDD + 0.3 V Junction Temperature +150 °C Storage Temperature –65 +150 °C Lead Temperature 10 sec +300 °C
AVDD DRVDD AVDD AVDD AVDD AVDD DRVSS DRVSS AVSS AVSS AVSS AVSS AVSS
a. D0–D7, OTR b. Three-State, Standby, Clamp c. CLK
AVDD AVDD REFTF 22 REFBS 25 AVDD AVSS AVSS AVDD AVDD REFBF 24 21 REFTS AVSS AVSS AVSS
d. AIN e. Reference
AVDD AVDD AVDD AVDD AVSS AVSS AVSS AVSS
f. CLAMPIN g. MODE h. REFSENSE i. VREF Figure 2. Equivalent Circuits
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
WARNING!
accumulate on the human body and test equipment and can discharge without detection. Although the AD9280 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
ESD SENSITIVE DEVICE
precautions are recommended to avoid performance degradation or loss of functionality. –4– REV. E Document Outline FEATURES PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM AD9280-SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS DEFINITIONS OF SPECIFICATIONS TYPICAL CHARACTERIZATION CURVES APPLYING THE AD9280 Theory of Operation Operational Modes Summary of Modes Voltage Reference Reference Buffer Analog Input Special Input and Reference Overview REFERENCE OPERATION Internal Reference Operation External Reference Operation STANDBY OPERATION CLAMP OPERATION Clamp Circuit Example DRIVING THE ANALOG INPUT DIFFERENTIAL INPUT OPERATION AD876-8 MODE OF OPERATION CLOCK INPUT DIGITAL INPUTS AND OUTPUTS APPLICATIONS Direct IF Down Conversion Using the AD9280 Grounding and Layout Rules Digital Outputs Three-State Outputs OUTLINE DIMENSIONS Ordering Guide REVISION HISTORY