LTC2230/LTC2231 UUUI TER AL REFERE CE CHARACTERISTICS (Note 4)PARAMETERCONDITIONSMINTYPMAXUNITS VCM Output Voltage IOUT = 0 1.570 1.600 1.630 V VCM Output Tempco ±25 ppm/°C VCM Line Regulation 3.1V < VDD < 3.5V 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)SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITSENCODE INPUTS (ENC+, ENC–) VID Differential Input Voltage ● 0.2 V VICM Common Mode Input Voltage Internally Set 1.6 V Externally Set (Note 7) ● 1.1 1.6 2.5 V RIN Input Resistance 6 kΩ CIN Input Capacitance (Note 7) 3 pF LOGIC INPUTS (OE, SHDN) VIH High Level Input Voltage VDD = 3.3V ● 2 V VIL Low Level Input Voltage VDD = 3.3V ● 0.8 V IIN Input Current VIN = 0V to VDD ● –10 10 μA CIN Input Capacitance (Note 7) 3 pF LOGIC OUTPUTS (CMOS MODE)OVDD = 3.3V COZ Hi-Z Output Capacitance OE = High (Note 7) 3 pF ISOURCE Output Source Current VOUT = 0V 50 mA ISINK Output Sink Current VOUT = 3.3V 50 mA VOH High Level Output Voltage IO = –10μA 3.295 V IO = –200μA ● 3.1 3.29 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 LOGIC OUTPUTS (LVDS MODE) VOD Differential Output Voltage 100Ω Differential Load ● 247 350 454 mV VOS Output Common Mode Voltage 100Ω Differential Load ● 1.125 1.250 1.375 V 22301fb 4