Datasheet AD7660 (Analog Devices) - 3

AD7660–SPECIFICATIONS(–40 C to +85 C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.) Parameter Conditions Min Typ Max Unit
RESOLUTION 16 Bits ANALOG INPUT Voltage Range VIN – VINGND 0 VREF V Operating Input Voltage VIN –0.1 +3 V VINGND –0.1 +0.5 V Analog Input CMRR fIN = 25 kHz 70 dB Input Current 100 kSPS Throughput 325 nA Input Impedance See Analog Input Section THROUGHPUT SPEED Complete Cycle 10 ms Throughput Rate 0 100 kSPS DC ACCURACY Integral Linearity Error –3 +3 LSB1 Differential Linearity Error –1 +1.75 LSB No Missing Codes 16 Bits Transition Noise2 0.75 LSB Full-Scale Error3 REF = 2.5 V ±0.045 ±0.08 % of FSR Unipolar Zero Error3 ±1 ±5 LSB Power Supply Sensitivity AVDD = 5 V ± 5% ±3 LSB AC ACCURACY Signal-to-Noise fIN = 10 kHz 87 90 dB4 fIN = 45 kHz 90 dB Spurious-Free Dynamic Range fIN = 10 kHz 96 dB fIN = 45 kHz 100 dB Total Harmonic Distortion fIN = 10 kHz –96 dB fIN = 45 kHz –100 dB Signal-to-(Noise+Distortion) fIN = 10 kHz 87 dB fIN = 45 kHz 90 dB –60 dB Input 30 dB –3 dB Input Bandwidth 820 kHz SAMPLING DYNAMICS Aperture Delay 2 ns Aperture Jitter 5 ps rms Transient Response Full-Scale Step 8 ms REFERENCE External Reference Voltage Range 2.3 2.5 AVDD – 1.85 V External Reference Current Drain 100 kSPS Throughput 22 mA POWER SUPPLIES Specified Performance AVDD 4.75 5 5.25 V DVDD 4.75 5 5.25 V OVDD 2.7 5.25 V Operating Current 100 kSPS Throughput AVDD 3.2 mA DVDD5 1 mA OVDD5 10 mA Power Dissipation5 100 kSPS Throughput 21 25 mW 100 SPS Throughput 21 mW in Power-Down Mode5, 6 7 mW DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 V VIH +2.0 OVDD + 0.3 V IIL –1 +1 mA IIH –1 +1 mA DIGITAL OUTPUTS Data Format Parallel or Serial 16-Bit Pipeline Delay Conversion Results Available Immediately after Completed Conversion VOL ISINK = 1.6 mA 0.4 V VOH ISOURCE = –500 mA OVDD – 0.6 V –2– REV. E Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDERING GUIDE PIN FUNCTION DESCRIPTIONS DEFINITION OF SPECIFICATIONS Integral Nonlinearity Error (INL) Differential Nonlinearity Error (DNL) Full-Scale Error Unipolar Zero Error Spurious-Free Dynamic Range (SFDR) Effective Number of Bits (ENOB) Total Harmonic Distortion (THD) Signal-to-Noise Ratio (SNR) Signal-to-(Noise + Distortion) Ratio (S/[N+D]) Aperture Delay Transient Response Overvoltage Recovery Typical Performance Characteristics CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Input Driver Amplifier Choice Voltage Reference Input Power Supply POWER DISSIPATION VS. THROUGHPUT 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 (ADSP-219x) APPLICATION HINTS Bipolar and Wider Input Ranges Layout Evaluating the AD7660 Performance OUTLINE DIMENSIONS Revision History