Datasheet LTC2253, LTC2252 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | 12-Bit, 125Msps Low Power 3V ADCs |
| Páginas / Página | 24 / 3 — A ALOG I PUT The. denotes the specifications which apply over the full … |
| Formato / tamaño de archivo | PDF / 639 Kb |
| Idioma del documento | Inglés |
A ALOG I PUT The. denotes the specifications which apply over the full operating temperature range, otherwise
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LTC2253/LTC2252
U U A ALOG I PUT The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications 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) ● ±0.5V to ±1V V VIN,CM Analog Input Common Mode Differential Input (Note 7) ● 1 1.5 1.9 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD ● –1 1 µA ISENSE SENSE Input Leakage 0V < SENSE < 1V ● –3 3 µA IMODE MODE Pin Leakage ● –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 640 MHz
U W DY A IC ACCURACY The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. AIN = –1dBFS. (Note 4) LTC2253 LTC2252 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.2 70.2 dB 30MHz Input 70.1 70.2 dB 70MHz Input ● 68 70 68.5 70.1 dB 140MHz Input 69.6 69.8 dB SFDR Spurious Free Dynamic Range 5MHz Input 88 88 dB 2nd or 3rd Harmonic 30MHz Input 85 88 dB 70MHz Input ● 72 82 71 84 dB 140MHz Input 78 79 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 90 dB 4th Harmonic or Higher 30MHz Input 90 90 dB 70MHz Input ● 77 90 78 90 dB 140MHz Input 90 90 dB S/(N+D) Signal-to-Noise Plus 5MHz Input 69.8 70.1 dB Distortion Ratio 30MHz Input 69.7 70.1 dB 70MHz Input ● 67 69.6 67.5 70 dB 140MHz Input 68.5 68.7 dB IMD Intermodulation Distortion fIN1 = 28.2MHz, 85 85 dB fIN2 = 26.8MHz 22532fa 3
U U A ALOG I PUT The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications 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) ● ±0.5V to ±1V V VIN,CM Analog Input Common Mode Differential Input (Note 7) ● 1 1.5 1.9 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD ● –1 1 µA ISENSE SENSE Input Leakage 0V < SENSE < 1V ● –3 3 µA IMODE MODE Pin Leakage ● –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 640 MHz
U W DY A IC ACCURACY The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. AIN = –1dBFS. (Note 4) LTC2253 LTC2252 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.2 70.2 dB 30MHz Input 70.1 70.2 dB 70MHz Input ● 68 70 68.5 70.1 dB 140MHz Input 69.6 69.8 dB SFDR Spurious Free Dynamic Range 5MHz Input 88 88 dB 2nd or 3rd Harmonic 30MHz Input 85 88 dB 70MHz Input ● 72 82 71 84 dB 140MHz Input 78 79 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 90 dB 4th Harmonic or Higher 30MHz Input 90 90 dB 70MHz Input ● 77 90 78 90 dB 140MHz Input 90 90 dB S/(N+D) Signal-to-Noise Plus 5MHz Input 69.8 70.1 dB Distortion Ratio 30MHz Input 69.7 70.1 dB 70MHz Input ● 67 69.6 67.5 70 dB 140MHz Input 68.5 68.7 dB IMD Intermodulation Distortion fIN1 = 28.2MHz, 85 85 dB fIN2 = 26.8MHz 22532fa 3