Datasheet LTC2240-10 (Analog Devices) - 4

LTC2240-10
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) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N+D) Signal-to-Noise Plus 10MHz Input 60.5 dB Distortion Ratio 70MHz Input l 59.1 60.5 dB (Note 12) 140MHz Input 60.4 dB 240MHz Input 60.1 dB IMD Intermodulation Distortion fIN1 = 135MHz, fIN2 = 140MHz 81 dBc
INTERNAL REFERENCE CHARACTERISTICS (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 1.225 1.25 1.275 V VCM Output Tempco ±35 ppm/°C VCM Line Regulation 2.375V < VDD < 2.625V 3 mV/V VCM Output Resistance –1mA < IOUT < 1mA 2 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 ENCODE INPUTS (ENC+, ENC–)
VID Differential Input Voltage (Note 7) l 0.2 V VICM Common Mode Input Voltage Internally Set l 1.5 V Externally Set (Note 7) 1.2 1.5 2.0 V RIN Input Resistance 4.8 kΩ CIN Input Capacitance (Note 7) 2 pF
LOGIC INPUTS (OE, SHDN)
VIH High Level Input Voltage VDD = 2.5V l 1.7 V VIL Low Level Input Voltage VDD = 2.5V l 0.7 V IIN Input Current VIN = 0V to VDD l –10 10 μA CIN Input Capacitance (Note 7) 3 pF
LOGIC OUTPUTS (CMOS MODE) OVDD = 2.5V
COZ Hi-Z Output Capacitance OE = High (Note 7) 3 pF ISOURCE Output Source Current VOUT = 0V 37 mA ISINK Output Sink Current VOUT = 2.5V 23 mA VOH High Level Output Voltage IO = –10μA 2.495 V IO = –500μA 2.45 V VOL Low Level Output Voltage 0.005 V 0.07 V
OVDD = 1.8V
VOH High Level Output Voltage IO = –500μA 1.75 V VOL Low Level Output Voltage IO = 500μA 0.07 V 224010fb 4