Datasheet LTC2282 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Dual 12-Bit, 105Msps Low Power 3V ADC |
| 页数 / 页 | 24 / 3 — CONVERTER CHARACTERISTICS. The. denotes the specifi cations which apply … |
| 文件格式/大小 | PDF / 475 Kb |
| 文件语言 | 英语 |
CONVERTER CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
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LTC2282
CONVERTER CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Full-Scale Drift Internal Reference ±30 ppm/°C External Reference ±5 ppm/°C Gain Matching External Reference ±0.3 %FS Offset Matching ±2 mV Transition Noise SENSE = 1V 0.3 LSBRMS
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 2.85V < VDD < 3.4V (Note 7) l ±0.5V to ±1V V V + – IN,CM Analog Input Common Mode (AIN + AIN )/2 Differential Input Drive (Note 7) l 1 1.5 1.9 V Single Ended Input Drive (Note 7) l 0.5 1.5 2 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD l –1 1 μA ISENSE SENSEA, SENSEB Input Leakage 0V < SENSEA, SENSEB < 1V l –3 3 μA IMODE MODE Input Leakage Current 0V < MODE < VDD l –3 3 μA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.2 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB Full Power Bandwidth Figure 8 Test Circuit 575 MHz
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.1 dB 30MHz Input 70.1 dB 70MHz Input l 68.5 70 dB 140MHz Input 69.7 dB SFDR Spurious Free Dynamic Range 5MHz Input 88 dB 2nd or 3rd Harmonic 30MHz Input 86 dB 70MHz Input l 72 84 dB 140MHz Input 79 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 4th Harmonic or Higher 30MHz Input 90 dB 70MHz Input l 79 90 dB 140MHz Input 90 dB S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input 70 dB 30MHz Input 70 dB 70MHz Input l 67.5 69.9 dB 140MHz Input 68.7 dB IMD Intermodulation Distortion fIN = 40MHz, 41MHz 85 dB Crosstalk fIN = 100MHz –110 dB 2282fb 3
CONVERTER CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Full-Scale Drift Internal Reference ±30 ppm/°C External Reference ±5 ppm/°C Gain Matching External Reference ±0.3 %FS Offset Matching ±2 mV Transition Noise SENSE = 1V 0.3 LSBRMS
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 2.85V < VDD < 3.4V (Note 7) l ±0.5V to ±1V V V + – IN,CM Analog Input Common Mode (AIN + AIN )/2 Differential Input Drive (Note 7) l 1 1.5 1.9 V Single Ended Input Drive (Note 7) l 0.5 1.5 2 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD l –1 1 μA ISENSE SENSEA, SENSEB Input Leakage 0V < SENSEA, SENSEB < 1V l –3 3 μA IMODE MODE Input Leakage Current 0V < MODE < VDD l –3 3 μA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.2 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB Full Power Bandwidth Figure 8 Test Circuit 575 MHz
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.1 dB 30MHz Input 70.1 dB 70MHz Input l 68.5 70 dB 140MHz Input 69.7 dB SFDR Spurious Free Dynamic Range 5MHz Input 88 dB 2nd or 3rd Harmonic 30MHz Input 86 dB 70MHz Input l 72 84 dB 140MHz Input 79 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 4th Harmonic or Higher 30MHz Input 90 dB 70MHz Input l 79 90 dB 140MHz Input 90 dB S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input 70 dB 30MHz Input 70 dB 70MHz Input l 67.5 69.9 dB 140MHz Input 68.7 dB IMD Intermodulation Distortion fIN = 40MHz, 41MHz 85 dB Crosstalk fIN = 100MHz –110 dB 2282fb 3