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LTC2242IUP-12 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2242IUP-12 Datasheet(HTML) 4 Page - Linear Technology |
4 / 28 page LTC2242-12 4 224212f DIGITAL I PUTS A D DIGITAL OUTPUTS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) I TER AL REFERE CE 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 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ENCODE INPUTS (ENC+, ENC–) VID Differential Input Voltage (Note 7) ● 0.2 V VICM Common Mode Input Voltage Internally Set 1.5 V Externally Set (Note 7) ● 1.2 1.5 2.0 V RIN Input Resistance 4.8 k Ω CIN Input Capacitance (Note 7) 2 pF LOGIC INPUTS (OE, SHDN) VIH High Level Input Voltage VDD = 2.5V ● 1.7 V VIL Low Level Input Voltage VDD = 2.5V ● 0.7 V IIN Input Current VIN = 0V to VDD ● –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 IO = 10µA 0.005 V IO = 500µA 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 LOGIC OUTPUTS (LVDS MODE) VOD Differential Output Voltage 100 Ω Differential Load ● 247 350 454 mV VOS Output Common Mode Voltage 100 Ω Differential Load ● 1.125 1.250 1.375 V |
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