Datasheet LTC2248, LTC2247, LTC2246 (Analog Devices) - 3

LTC2248/LTC2247/LTC2246
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) LTC2248 LTC2247 LTC2246 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 74.3 74.4 74.5 dB 12.5MHz Input ● 72.9 74.2 dB 20MHz Input ● 72.9 74.4 dB 30MHz Input ● 72.5 74.3 dB 70MHz Input 74.3 73.9 73.4 dB 140MHz Input 73.9 73.3 73 dB SFDR Spurious Free 5MHz Input 90 90 90 dB Dynamic Range 12.5MHz Input ● 76 90 dB 2nd or 3rd 20MHz Input ● 76 90 dB Harmonic 30MHz Input ● 76 90 dB 70MHz Input 85 85 85 dB 140MHz Input 80 80 80 dB SFDR Spurious Free 5MHz Input 95 95 95 dB Dynamic Range 12.5MHz Input ● 84 95 dB 4th Harmonic 20MHz Input ● 84 95 dB or Higher 30MHz Input ● 84 95 dB 70MHz Input 95 95 95 dB 140MHz Input 90 90 90 dB S/(N+D) Signal-to-Noise 5MHz Input 74.3 74.4 74.5 dB Plus Distortion 12.5MHz Input ● 72.2 74.2 dB Ratio 20MHz Input ● 72.2 74.3 dB 30MHz Input ● 72 74.2 dB 70MHz Input 74.1 73.6 73.4 dB 140MHz Input 71.9 71.9 71.8 dB IMD Intermodulation fIN1 = 28.2MHz 90 90 90 dB Distortion fIN2 = 26.8MHz 224876fa 3