Datasheet LTC2142-14, LTC2141-14, LTC2140-14 (Analog Devices) - 5

LTC2142-14/ LTC2141-14/LTC2140-14
DYNAMIC ACCURACY The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5) LTC2142-14 LTC2141-14 LTC2140-14 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 73.2 72.8 73.7 dBFS 30MHz Input l 71.8 73.2 71.5 72.8 72 73.7 dBFS 70MHz Input 73.1 72.7 73.6 dBFS 140MHz Input 72.7 72.4 73.2 dBFS SFDR Spurious Free Dynamic Range 5MHz Input 90 90 90 dBFS 2nd Harmonic 30MHz Input l 79 90 81 90 81 90 dBFS 70MHz Input 89 89 89 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 90 90 90 dBFS 3rd Harmonic 30MHz Input l 82 90 82 90 82 90 dBFS 70MHz Input 89 89 89 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 95 95 95 dBFS 4th Harmonic or Higher 30MHz Input l 86 95 86 95 88 95 dBFS 70MHz Input 95 95 95 dBFS 140MHz Input 95 95 95 dBFS S/(N+D) Signal-to-Noise Plus 5MHz Input 73.1 72.7 73.5 dBFS Distortion Ratio 30MHz Input l 71.5 73.1 71.1 72.7 71.8 73.5 dBFS 70MHz Input 72.9 72.5 73.4 dBFS 140MHz Input 72.2 72 72.7 dBFS Crosstalk 10MHz Input –110 –110 –110 dBc
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 0.5 • VDD – 25mV 0.5 • VDD 0.5 • VDD + 25mV V VCM Output Temperature Drift ±25 ppm/°C VCM Output Resistance –600μA < IOUT < 1mA 4 Ω VREF Output Voltage IOUT = 0 1.225 1.250 1.275 V VREF Output Temperature Drift ±25 ppm/°C VREF Output Resistance –400μA < IOUT < 1mA 7 Ω VREF Line Regulation 1.7V < VDD < 1.9V 0.6 mV/V 21421014fa 5