Datasheet LTC2238, LTC2237, LTC2236 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | 10-Bit, 65Msps Low Power 3V ADCs |
| Páginas / Página | 28 / 3 — A ALOG I PUT The. denotes the specifications which apply over the full … |
| Formato / tamaño de archivo | PDF / 714 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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Versión de texto del documento
LTC2238/LTC2237/LTC2236
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 ) 2.7V < VDD < 3.4V (Note 7) ● ±0.5V to ±1V V V + – IN,CM Analog Input Common Mode (AIN + AIN )/2 Differential Input (Note 7) ● 1 1.5 1.9 V Single Ended Input (Note 7) ● 0.5 1.5 2 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 575 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) LTC2238 LTC2237 LTC2236 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 61.8 61.8 61.8 dB 12.5MHz Input ● 60 61.8 dB 20MHz Input ● 60 61.8 dB 30MHz Input ● 60 61.8 dB 70MHz Input 61.7 61.7 61.6 dB 140MHz Input 61.6 61.6 61.6 dB SFDR Spurious Free 5MHz Input 85 85 85 dB Dynamic Range 12.5MHz Input ● 69 85 dB 2nd or 3rd 20MHz Input ● 69 85 dB Harmonic 30MHz Input ● 69 85 dB 70MHz Input 85 85 85 dB 140MHz Input 80 80 80 dB Spurious Free 5MHz Input 85 85 85 dB Dynamic Range 12.5MHz Input ● 75 85 dB 4th Harmonic 20MHz Input ● 75 85 dB or Higher 30MHz Input ● 74 85 dB 70MHz Input 85 85 85 dB 140MHz Input 85 85 85 dB S/(N+D) Signal-to-Noise 5MHz Input 61.8 61.8 61.8 dB Plus Distortion 12.5MHz Input ● 60 61.8 dB Ratio 20MHz Input ● 60 61.6 dB 30MHz Input ● 60 61.8 dB 70MHz Input 61.7 61.6 61.6 dB 140MHz Input 61.6 61.6 61.5 dB IMD Intermodulation fIN1 = 28.2MHz, 80 80 80 dB Distortion fIN2 = 26.8MHz 223876fa 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 ) 2.7V < VDD < 3.4V (Note 7) ● ±0.5V to ±1V V V + – IN,CM Analog Input Common Mode (AIN + AIN )/2 Differential Input (Note 7) ● 1 1.5 1.9 V Single Ended Input (Note 7) ● 0.5 1.5 2 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 575 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) LTC2238 LTC2237 LTC2236 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 61.8 61.8 61.8 dB 12.5MHz Input ● 60 61.8 dB 20MHz Input ● 60 61.8 dB 30MHz Input ● 60 61.8 dB 70MHz Input 61.7 61.7 61.6 dB 140MHz Input 61.6 61.6 61.6 dB SFDR Spurious Free 5MHz Input 85 85 85 dB Dynamic Range 12.5MHz Input ● 69 85 dB 2nd or 3rd 20MHz Input ● 69 85 dB Harmonic 30MHz Input ● 69 85 dB 70MHz Input 85 85 85 dB 140MHz Input 80 80 80 dB Spurious Free 5MHz Input 85 85 85 dB Dynamic Range 12.5MHz Input ● 75 85 dB 4th Harmonic 20MHz Input ● 75 85 dB or Higher 30MHz Input ● 74 85 dB 70MHz Input 85 85 85 dB 140MHz Input 85 85 85 dB S/(N+D) Signal-to-Noise 5MHz Input 61.8 61.8 61.8 dB Plus Distortion 12.5MHz Input ● 60 61.8 dB Ratio 20MHz Input ● 60 61.6 dB 30MHz Input ● 60 61.8 dB 70MHz Input 61.7 61.6 61.6 dB 140MHz Input 61.6 61.6 61.5 dB IMD Intermodulation fIN1 = 28.2MHz, 80 80 80 dB Distortion fIN2 = 26.8MHz 223876fa 3