Datasheet LTC2273, LTC2272 (Analog Devices) - 3

LTC2273/LTC2272
ANALOG INPUT The
l
denotes denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 3.135V ≤ VDD ≤ 3.465V l 1.5 or 2.25 VP-P VIN, CM Analog Input Common Mode Differential Input (Note 7) l 1 1.25 1.5 V I + – IN Analog Input Leakage Current 0V ≤ AIN , AIN ≤ VDD (Note 10) l –1 1 μA ISENSE SENSE Input Leakage Current 0V ≤ SENSE ≤ VDD (Note 11) –3 3 μA CIN Analog Input Capacitance Sample Mode ENC+ < ENC– 6.7 pF Hold Mode ENC+ > ENC– 1.8 pF tAP Sample-and-Hold 1 ns Acquisition Delay Time tJITTER Sample-and-Hold 80 fsRMS Acquisition Delay Time Jitter CMRR Analog Input 1V < (A + – IN = AIN ) <1.5V 80 dB Common Mode Rejection Ratio BW-3dB Full Power Bandwidth RS ≤ 25Ω 700 MHz
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS. (Note 4) LTC2273 LTC2272 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input (2.25V Range, PGA = 0) 77.6 77.6 dBFS 5MHz Input (1.5V Range, PGA = 1) 75.4 75.4 dBFS 15MHz Input (2.25V Range, PGA = 0), TA = 25°C 76.5 77.5 76.5 77.5 dBFS 15MHz Input (2.25V Range, PGA = 0) l 76.2 77.2 76.2 77.2 dBFS 15MHz Input (1.5V Range, PGA = 1) 75.3 75.3 dBFS 70MHz Input (2.25V Range, PGA = 0) 77.2 77.2 dBFS 70MHz Input (1.5V Range, PGA = 1), TA = 25°C 74.5 75.1 74.5 75.1 dBFS 70MHz Input (1.5V Range, PGA = 1) l 74.2 74.8 74.2 74.8 dBFS 140MHz Input (2.25V Range, PGA = 0) 76.3 76.3 dBFS 140MHz Input (1.5V Range, PGA = 1) 74.5 74.5 dBFS 170MHz Input (2.25V Range, PGA = 0) 75.9 75.9 dBFS 170MHz Input (1.5V Range, PGA = 1) 74.3 74.3 dBFS SFDR Spurious Free Dynamic 5MHz Input (2.25V Range, PGA = 0) 100 100 dBc Range 2nd or 3rd Harmonic 5MHz Input (1.5V Range, PGA = 1) 100 100 dBc 15MHz Input (2.25V Range, PGA = 0), TA = 25°C 85 95 85 95 dBc 15MHz Input (2.25V Range, PGA = 0) l 84 95 84 95 dBc 15MHz Input (1.5V Range, PGA = 1) 100 100 dBc 70MHz Input (2.25V Range, PGA = 0) 86 86 dBc 70MHz Input (1.5V Range, PGA = 1), TA = 25°C 84 94 84 94 dBc 70MHz Input (1.5V Range, PGA = 1) l 83 92 83 92 dBc 140MHz Input (2.25V Range, PGA = 0) 85 85 dBc 140MHz Input (1.5V Range, PGA = 1) 90 90 dBc 170MHz Input (2.25V Range, PGA = 0) 80 80 dBc 170MHz Input (1.5V Range, PGA = 1) 85 85 dBc 22732fa 3