Datasheet LTC2228, LTC2227, LTC2226 (Analog Devices) - 4

LTC2228/LTC2227/LTC2226
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) LTC2228 LTC2227 LTC2226 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SFDR Spurious Free 5MHz Input 95 95 95 dB Dynamic Range 12.5MHz Input l 82 95 dB 4th Harmonic or Higher 20MHz Input l 82 95 dB 30MHz Input l 82 95 dB 70MHz Input 95 95 95 dB 140MHz Input 90 90 90 dB S/(N+D) Signal-to-Noise 5MHz Input 71.3 71.4 71.4 dB Plus Distortion 12.5MHz Input l 69.8 71.2 dB Ratio 20MHz Input l 69.7 71.2 dB 30MHz Input l 69.6 71.2 dB 70MHz Input 71.1 70.9 70.8 dB 140MHz Input 69.9 69.9 69.8 dB IMD Intermodulation fIN1 = 28.2MHz, 90 90 90 dB Distortion fIN2 = 26.8MHz
INTERNAL REFERENCE CHARACTERISTICS (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 1.475 1.500 1.525 V VCM Output Tempco ±25 ppm/°C VCM Line Regulation 2.7V < VDD < 3.4V 3 mV/V VCM Output Resistance –1mA < IOUT < 1mA 4 Ω
DIGITAL INPUTS AND DIGITAL OUTPUTS 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 LOGIC INPUTS (CLK, OE, SHDN)
VIH High Level Input Voltage VDD = 3V l 2 V VIL Low Level Input Voltage VDD = 3V l 0.8 V IIN Input Current VIN = 0V to VDD l –10 10 μA CIN Input Capacitance (Note 7) 3 pF
LOGIC OUTPUTS OVDD = 3V
COZ Hi-Z Output Capacitance OE = High (Note 7) 3 pF ISOURCE Output Source Current VOUT = 0V 50 mA ISINK Output Sink Current VOUT = 3V 50 mA VOH High Level Output Voltage IO = –10μA 2.995 V IO = –200μA l 2.7 2.99 V VOL Low Level Output Voltage IO = 10μA 0.005 V IO = 1.6mA l 0.09 0.4 V
OVDD = 2.5V
VOH High Level Output Voltage IO = –200μA 2.49 V VOL Low Level Output Voltage IO = 1.6mA 0.09 V
OVDD = 1.8V
VOH High Level Output Voltage IO = –200μA 1.79 V VOL Low Level Output Voltage IO = 1.6mA 0.09 V 222876fb 4