Datasheet LTC2203, LTC2202 (Analog Devices) - 3

LTC2203/LTC2202
CONVERTER CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No missing codes) 16 Integral Linearity Error Differential Analog Input (Note 5) TA = 25°C ±1.2 ±4.0 LSB Integral Linearity Error Differential Analog Input (Note 5) l ±1.5 ±4.5 LSB Differential Linearity Error Differential Analog Input l ±0.3 ±1 LSB Offset Error (Note 6) l ±2 ±10 mV Offset Drift ±10 μV/°C Gain Error External Reference l ±0.2 ±1.5 %FS Full-Scale Drift Internal Reference ±30 ppm/°C External Reference ±15 ppm/°C Transition Noise External Reference (2.5V Range, PGA = 0) 1.92 LSBRMS
ANALOG INPUT The
l
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 1.667 or 2.5 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 9) l –1 1 μA ISENSE SENSE Input Leakage Current 0V ≤ SENSE ≤ VDD (Note 10) l –3 3 μA IMODE MODE Pin Pull-Down Current to GND 10 μA IOE OE Pin Pull-Down Current to GND 10 μA CIN Analog Input Capacitance Sample Mode CLK = 0 10.5 pF Hold Mode CLK = 0 1.4 pF tAP Sample-and-Hold 0.9 ns Acquisition Delay Time tJITTER Sample-and-Hold 200 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 < 20Ω 380 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) LTC2203 LTC2202 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 1MHz Input (2.25V Range, PGA = 0) 81.6 81.6 dBFS 1MHz Input (1.667V Range, PGA = 1) 79.4 79.4 dBFS 5MHz Input (2.5V Range, PGA = 0) l 80 81.6 80 81.6 dBFS 5MHz Input (1.667V Range, PGA = 1) 79.4 79.4 dBFS 12.5MHz Input (2.5V Range, PGA = 0) 81.4 81.4 dBFS 12.5MHz Input (1.667V Range, PGA = 1) 79.3 79.3 dBFS 30MHz Input (2.5V Range, PGA = 0) 80.8 80.8 dBFS 30MHz Input (1.667V Range, PGA = 1) l 77.5 78.9 77.5 78.9 dBFS 70MHz Input (2.5V Range, PGA = 0) 78.3 78.3 dBFS 70MHz Input (1.667V Range, PGA =1 ) 77.2 77.2 dBFS 22032fd 3