Datasheet AD9221, AD9223, AD9220 (Analog Devices) - 3

AD9221/AD9223/AD9220 (AVDD = 5 V, DVDD= 5 V, f AC SPECIFICATIONS SAMPLE = Max Conversion Rate, VREF = 1.0 V, VINB = 2.5 V, DC Coupled/Single- Ended Input TMIN to TMAX, unless otherwise noted.) Parameter AD9221 AD9223 AD9220 Unit
MAX CONVERSION RATE 1.5 3.0 10.0 MHz min DYNAMIC PERFORMANCE Input Test Frequency 1 (VINA = –0.5 dBFS) 100 500 1000 kHz Signal-to-Noise and Distortion (SINAD) 70.0 70.0 70 dB typ 69.0 68.5 68.5 dB min Effective Number of Bits (ENOBs) 11.3 11.3 11.3 dB typ 11.2 11.1 11.1 dB min Signal-to-Noise Ratio (SNR) 70.2 70.0 70.2 dB typ 69.0 68.5 69.0 dB min Total Harmonic Distortion (THD) –83.4 –83.4 –83.7 dB typ –77.5 –76.0 –76.0 dB max Spurious Free Dynamic Range (SFDR) 86.0 87.5 88.0 dB typ 79.0 77.5 77.5 dB max Input Test Frequency 2 (VINA = –0.5 dBFS) 0.50 1.50 5.0 MHz Signal-to-Noise and Distortion (SINAD) 69.9 69.4 67.0 dB typ 69.0 68.0 65.0 dB min Effective Number of Bits (ENOBs) 11.3 11.2 10.8 dB typ 11.2 11.1 10.5 dB min Signal-to-Noise Ratio (SNR) 70.1 69.7 68.8 dB typ 69.0 68.5 67.5 dB min Total Harmonic Distortion (THD) –83.4 –82.9 –72.0 dB typ –77.5 –75.0 –68.0 dB max Spurious Free Dynamic Range (SFDR) 86.0 85.7 75.0 dB typ 79.0 76.0 69.0 dB max Full Power Bandwidth 25 40 60 MHz typ Small Signal Bandwidth 25 40 60 MHz typ Aperture Delay 1 1 1 ns typ Aperture Jitter 4 4 4 ps rms typ Acquisition to Full-Scale Step 125 43 30 ns typ Specifications subject to change without notice.
DIGITAL SPECIFICATIONS (AVDD = 5 V, DVDD = 5 V, TMIN to TMAX, unless otherwise noted.) Parameter Symbol Unit
CLOCK INPUT High Level Input Voltage VIH 3.5 V min Low Level Input Voltage VIL 1.0 V max High Level Input Current (V ± IN = DVDD) IIH 10 µA max Low Level Input Current (VIN = 0 V) IIL ±10 µA max Input Capacitance CIN 5 pF typ LOGIC OUTPUTS DVDD = 5 V High Level Output Voltage (IOH = 50 µA) VOH 4.5 V min High Level Output Voltage (IOH = 0.5 mA) VOH 2.4 V min Low Level Output Voltage (IOL = 1.6 mA) VOL 0.4 V max Low Level Output Voltage (IOL = 50 µA) VOL 0.1 V max DVDD = 3 V High Level Output Voltage (IOH = 50 µA) VOH 2.95 V min High Level Output Voltage (IOH = 0.5 mA) VOH 2.80 V min Low Level Output Voltage (IOL = 1.6 mA) VOL 0.4 V max Low Level Output Voltage (IOL = 50 µA) VOL 0.05 V max Output Capacitance COUT 5 pF typ Specifications subject to change without notice. REV. E –3– Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS DC SPECIFICATIONS AC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS DEFINITIONS OF SPECIFICATIONS Integral Nonlinearity (INL) Differential Nonlinearity (DNL, No Missing Codes) Zero Error Gain Error Temperature Drift Power Supply Rejection Aperture Jitter Aperture Delay Signal-to-Noise and Distortion (S/N+D, SINAD) Ratio Effective Number of Bits (ENOB) Total Harmonic Distortion (THD) Signal-to-Noise Ratio (SNR) Spurious Free Dynamic Range (SFDR) Typical Performance Characteristics INTRODUCTION ANALOG INPUT AND REFERENCE OVERVIEW ANALOG INPUT OPERATION REFERENCE OPERATION DRIVING THE ANALOG INPUTS Introduction SINGLE-ENDED MODE OF OPERATION DC COUPLING AND INTERFACE ISSUES Simple Op Amp Buffer Op Amp with DC Level Shifting AC COUPLING AND INTERFACE ISSUES Simple AC Interface Alternative AC Interface Op Amp Selection Guide DIFFERENTIAL MODE OF OPERATION REFERENCE CONFIGURATIONS USING THE INTERNAL REFERENCE Single-Ended Input with 0 to 2 VREF Range Single-Ended or Differential Input, VCM = 2.5 V VINA Resistor Programmable Reference USING AN EXTERNAL REFERENCE Variable Input Span with VCM = 2.5 V Single-Ended Input with 0 to 2 VREF Range Low Cost/Power Reference DIGITAL INPUTS AND OUTPUTS Digital Outputs Out Of Range (OTR) Digital Output Driver Considerations (DVDD) Clock Input and Considerations GROUNDING AND DECOUPLING Analog and Digital Grounding Analog and Digital Supply Decoupling APPLICATIONS Direct IF Down Conversion Using the AD9220 Multichannel Data Acquisition with Autocalibration OUTLINE DIMENSIONS Revision History