Datasheet LTC2251, LTC2250 (Analog Devices) - 3

LTC2251/LTC2250
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) LTC2251 LTC2250 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 61.6 61.6 dB 30MHz Input 61.6 61.6 dB 70MHz Input ● 60 61.5 60 61.5 dB 140MHz Input 61.4 61.4 dB SFDR Spurious Free 5MHz Input 85 85 dB Dynamic Range 30MHz Input 85 85 dB 2nd or 3rd 70MHz Input ● 69 82 69 83 dB Harmonic 140MHz Input 77 77 dB SFDR Spurious Free 5MHz Input 85 85 dB Dynamic Range 30MHz Input 85 85 dB 4th Harmonic 70MHz Input ● 75 85 75 85 dB or Higher 140MHz Input 85 85 dB S/(N+D) Signal-to-Noise 5MHz Input 61.5 61.6 dB Plus Distortion 30MHz Input 61.5 61.6 dB Ratio 70MHz Input ● 60 61.4 60 61.5 dB 140MHz Input 61.2 61.3 dB IMD Intermodulation fIN1 = 28.2MHz, 80 80 dB Distortion fIN2 = 26.8MHz 22510fa 3