Datasheet AD9221, AD9223, AD9220 (Analog Devices) - 2

AD9221/AD9223/AD9220–SPECIFICATIONS (AVDD = 5 V, DVDD = 5 V, fSAMPLE = Max Conversion Rate, VREF = 2.5 V, VINB = 2.5 V, TMIN to TMAX, unless DC SPECIFICATIONS otherwise noted.) Parameter AD9221 AD9223 AD9220 Unit
RESOLUTION 12 12 12 Bits min MAX CONVERSION RATE 1.5 3 10 MHz min INPUT REFERRED NOISE (TYP) VREF = 1 V 0.23 0.23 0.23 LSB rms typ VREF = 2.5 V 0.09 0.09 0.09 LSB rms typ ACCURACY Integral Nonlinearity (INL) ±0.4 ±0.5 ±0.5 LSB typ ±1.25 ±1.25 ±1.25 LSB max Differential Nonlinearity (DNL) ±0.3 ±0.3 ±0.3 LSB typ ±0.75 ±0.75 ±0.75 LSB max INL1 ±0.6 ±0.6 ±0.7 LSB typ DNL1 ±0.3 ±0.3 ±0.35 LSB typ No Missing Codes 12 12 12 Bits Guaranteed Zero Error (@ 25°C) ±0.3 ±0.3 ±0.3 % FSR max Gain Error (@ 25°C)2 ±1.5 ±1.5 ±1.5 % FSR max Gain Error (@ 25°C)3 ±0.75 ±0.75 ±0.75 % FSR max TEMPERATURE DRIFT Zero Error ±2 ±2 ±2 ppm/°C typ Gain Error2 ±26 ±26 ±26 ppm/°C typ Gain Error3 ±0.4 ±0.4 ±0.4 ppm/°C typ POWER SUPPLY REJECTION AVDD, DVDD (+5 V ± 0.25 V) ±0.06 ±0.06 ±0.06 % FSR max ANALOG INPUT Input Span (with VREF = 1.0 V) 2 2 2 V p-p min Input Span (with VREF = 2.5 V) 5 5 5 V p-p max Input (VINA or VINB) Range 0 0 0 V min AVDD AVDD AVDD V max Input Capacitance 16 16 16 pF typ INTERNAL VOLTAGE REFERENCE Output Voltage (1 V Mode) 1 1 1 V typ Output Voltage Tolerance (1 V Mode) ±14 ±14 ±14 mV max Output Voltage (2.5 V Mode) 2.5 2.5 2.5 V typ Output Voltage Tolerance (2.5 V Mode) ±35 ±35 ±35 mV max Load Regulation4 2.0 2.0 2.0 mV max REFERENCE INPUT RESISTANCE 5 5 5 kΩ typ POWER SUPPLIES Supply Voltages AVDD 5 5 5 V (± 5% AVDD Operating) DVDD 2.7 to 5.25 2.7 to 5.25 2.7 to 5.25 V Supply Current IAVDD 14.0 26 58 mA max 11.8 20 51 mA typ IDVDD 0.5 0.5 4.0 mA max 0.02 0.02 <1.0 mA typ POWER CONSUMPTION 59.0 100 254 mW typ 70.0 130 310 mW max NOTES 1VREF = 1 V. 2Including internal reference. 3Excluding internal reference. 4Load regulation with 1 mA load current (in addition to that required by the AD9221/AD9223/AD9220). Specification subject to change without notice. –2– REV. E 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