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ADC08D1000EVAL Datenblatt(PDF) 8 Page - National Semiconductor (TI) |
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ADC08D1000EVAL Datenblatt(HTML) 8 Page - National Semiconductor (TI) |
8 / 31 page Converter Electrical Characteristics (Continued) [Note: This product is currently in development. As such, the parameters specified in this section are DESIGN TAR- GETS. The specifications in this section cannot be guaranteed until device characterization has taken place.] The following specifications apply after calibration for V A =VDR = +1.9VDC, OutV = 1.9V, VIN FSR (a.c. coupled) = differential 800mV P-P,CL = 10 pF, Differential, a.c. coupled Sinewave Input Clock, fCLK = 1 GHz at 0.5VP-P with 50% duty cycle, Non- Extended Control Mode, R EXT = 3300 Ω ±0.1%, Analog Signal Source Impedance = 100Ω. Boldface limits apply for T A = T MIN to TMAX. All other limits TA = 25˚C, unless otherwise noted. (Notes 6, 7) Symbol Parameter Conditions Typical (Note 8) Limits (Note 8) Units (Limits) STATIC CONVERTER CHARACTERISTICS SINAD Signal-to-Noise Plus Distortion Ratio f IN = 100 MHz, VIN = FSR − 0.5 dB 47 dB f IN = 248 MHz, VIN = FSR − 0.5 dB 47 TBD dB (min) f IN = 498 MHz, VIN = FSR − 0.5 dB 47 TBD dB (min) SNR Signal-to-Noise Ratio f IN = 100 MHz, VIN = FSR − 0.5 dB 48 dB f IN = 248 MHz, VIN = FSR − 0.5 dB 48 TBD dB (min) f IN = 498 MHz, VIN = FSR − 0.5 dB 48 TBD dB (min) THD Total Harmonic Distortion f IN = 100 MHz, VIN = FSR − 0.5 dB -57 dB f IN = 248 MHz, VIN = FSR − 0.5 dB -57 −TBD dB (max) f IN = 498 MHz, VIN = FSR − 0.5 dB -57 −TBD dB (max) 2nd Harm Second Harmonic Distortion f IN = 100 MHz, VIN = FSR − 0.5 dB −64 dB f IN = 248 MHz, VIN = FSR − 0.5 dB −64 dB f IN = 498 MHz, VIN = FSR − 0.5 dB −64 dB 3rd Harm Third Harmonic Distortion f IN = 100 MHz, VIN = FSR − 0.5 dB −64 dB f IN = 248 MHz, VIN = FSR − 0.5 dB −64 −TBD dB f IN = 498 MHz, VIN = FSR − 0.5 dB −64 −TBD dB SFDR Spurious-Free dynamic Range f IN = 100 MHz, VIN = FSR − 0.5 dB 58.5 dB f IN = 248 MHz, VIN = FSR − 0.5 dB 58.5 TBD dB (min) f IN = 498 MHz, VIN = FSR − 0.5 dB 58.5 TBD dB (min) IMD Intermodulation Distortion f IN1 = 121 MHz, VIN =FSR−7dB f IN2 = 126 MHz, VIN =FSR−7dB -51 dB Out of Range Output Code (In addition to OR Output high) (V IN+)−(VIN−) > + Full Scale 255 (V IN+)−(VIN−) < − Full Scale 0 ANALOG INPUT AND REFERENCE CHARACTERISTICS V IN Full Scale Analog Differential Input Range FSR pin 14 Low 600 550 mV P-P (min) 650 mV P-P (max) FSR pin 14 High 800 750 mV P-P (min) 850 mV P-P (max) V CMI Analog Input Common Mode Voltage V CMO V CMO −50 V CMO +50 mV (min) mV (max) C IN Analog Input Capacitance, normal operation (Note 10) Differential 0.02 pF Each input pin to ground 1.6 pF Analog Input Capacitance, DES Mode (Note 10) Differential 0.8 pF Each input pin to ground 2.2 pF R IN Differential Input Resistance 100 94 Ω (min) 106 Ω (max) ANALOG OUTPUT CHARACTERISTICS V CMO Common Mode Output Voltage 1.25 0.95 1.45 V (min) V (max) TC V CMO Common Mode Output Voltage Temperature Coefficient T A = −40˚C to +85˚C 118 ppm/˚C C LOAD V CMO Maximum VCMO load Capacitance 80 pF www.national.com 8 |
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