Datasheet AD7677 (Analog Devices) - 3

AD7677–SPECIFICATIONS (–40 C to +85 C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise stated.) Parameter Conditions Min Typ Max Unit
RESOLUTION 16 Bits ANALOG INPUT Voltage Range VIN+ – VIN– –VREF +VREF V Operating Input Voltage VIN+, VIN– to AGND –0.1 +3 V Analog Input CMRR fIN = 10 kHz 85 dB Input Current 1 MSPS Throughput 11 µA Input Impedance See Analog Input Section THROUGHPUT SPEED Complete Cycle In Warp Mode 1 µs Throughput Rate In Warp Mode 0.001 1 MSPS Time Between Conversions In Warp Mode 1 ms Complete Cycle In Normal Mode 1.25 µs Throughput Rate In Normal Mode 0 800 kSPS Complete Cycle In Impulse Mode 1.5 µs Throughput Rate In Impulse Mode 0 666 kSPS DC ACCURACY Integral Linearity Error –1 +1 LSB1, 2 Differential Linearity Error –1 +1 LSB2 No Missing Codes 16 Bits Transition Noise 0.35 LSB +Full-Scale Error3 In Warp Mode –25 +25 LSB –Full Scale Error3 In Warp Mode –20 +20 LSB Zero Error3 In Warp Mode –15 +15 LSB +Full-Scale Error3 In Impulse or Normal Mode –40 +40 LSB –Full Scale Error3 In Impulse or Normal Mode –20 +20 LSB Zero Error3 In Impulse or Normal Mode –23 +23 LSB Power Supply Sensitivity AVDD = 5 V ± 5% ±1.4 LSB AC ACCURACY Signal-to-Noise fIN = 20 kHz 92 94 dB2, 4 fIN = 45 kHz 94 dB Spurious Free Dynamic Range fIN = 20 kHz 104.5 110 dB2 fIN = 45 kHz 110 dB Total Harmonic Distortion fIN = 20 kHz –110 –103.5 dB2 fIN = 45 kHz –110 dB Signal-to-(Noise+Distortion) fIN = 20 kHz 92 94 dB2 fIN = 45 kHz 94 fIN = 45 kHz, –60 dB Input 34 dB –3 dB Input Bandwidth 15.8 MHz SAMPLING DYNAMICS Aperture Delay 2 ns Aperture Jitter 5 ps rms Transient Response Full-Scale Step 250 ns REFERENCE External Reference Voltage Range 2.3 2.5 AVDD – 1.85 V External Reference Current Drain 1 MSPS Throughput 37 µA DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 V VIH 2.0 DVDD + 0.3 V IIL –1 +1 µA IIH –1 +1 µA DIGITAL OUTPUTS Data Format Parallel or Serial 16-Bit Conversion Pipeline Delay Results Available Immediately after Completed Conversion VOL ISINK = 1.6 mA 0.4 V VOH ISOURCE = –100 µA OVDD – 0.6 V –2– REV. A Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM PulSAR Selection GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS Table I. Serial Clock Timings in Master Read after Convert ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN FUNCTION DESCRIPTIONS PIN CONFIGURATION Typical Performance Characteristics CIRCUIT INFORMATION CONVERTER OPERATION Modes of Operation Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Inputs Single to Differential Driver Driver Amplifier Choice Voltage Reference Input Power Supply POWER DISSIPATION CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read after Conversion External Clock Data Read During Conversion MICROPROCESSOR INTERFACING SPI Interface (MC68HC11) ADSP-21065L in Master Serial Interface APPLICATION HINTS Layout Evaluating the AD7677 Performance OUTLINE DIMENSIONS Revision History