Datasheet LTC2142-12, LTC2141-12, LTC2140-12 (Analog Devices) - 5

LTC2142-12/ LTC2141-12/LTC2140-12
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) LTC2142-12 LTC2141-12 LTC2140-12 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.8 70.5 71 dBFS 30MHz Input l 69.6 70.8 69.2 70.5 69.7 71 dBFS 70MHz Input 70.7 70.4 70.9 dBFS 140MHz Input 70.5 70.2 70.7 dBFS SFDR Spurious Free Dynamic Range 5MHz Input 89 89 89 dBFS 2nd Harmonic 30MHz Input l 78 89 80 89 80 89 dBFS 70MHz Input 88 88 88 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 89 89 89 dBFS 3rd Harmonic 30MHz Input l 80 89 80 89 80 89 dBFS 70MHz Input 88 88 88 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 95 95 95 dBFS 4th Harmonic or Higher 30MHz Input l 85 95 85 95 85 95 dBFS 70MHz Input 95 95 95 dBFS 140MHz Input 95 95 95 dBFS S/(N+D) Signal-to-Noise Plus 5MHz Input 70.7 70.4 70.9 dBFS Distortion Ratio 30MHz Input l 69.4 70.7 69.1 70.4 69.6 70.9 dBFS 70MHz Input 70.6 70.3 70.8 dBFS 140MHz Input 70.2 69.9 70.4 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 21421012fa 5