LTC2253/LTC2252 UUUI TER AL REFERE CE CHARACTERISTICS (Note 4)PARAMETERCONDITIONSMINTYPMAXUNITS VCM Output Voltage IOUT = 0 1.475 1.500 1.525 V VCM Output Tempco ±25 ppm/°C VCM Line Regulation 2.85V < VDD < 3.4V 3 mV/V VCM Output Resistance –1mA < IOUT < 1mA 4 Ω UUDIGITAL I PUTS A D DIGITAL OUTPUTS The ● denotes the specifications which apply over thefull operating temperature range, otherwise specifications are at TA = 25 ° C. (Note 4)SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITSLOGIC INPUTS (CLK, OE, SHDN) VIH High Level Input Voltage VDD = 3V ● 2 V VIL Low Level Input Voltage VDD = 3V ● 0.8 V IIN Input Current VIN = 0V to VDD ● –10 10 µA CIN Input Capacitance (Note 7) 3 pF LOGIC OUTPUTSOVDD = 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 ● 2.7 2.99 V VOL Low Level Output Voltage IO = 10µA 0.005 V IO = 1.6mA ● 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 22532fa 4