ADG758/ADG759TERMINOLOGY VDD Most Positive Power Supply Potential VSS Most Negative Power Supply in a dual-supply application. In single-supply applications, this should be tied to ground at the device. GND Ground (0 V) Reference S Source Terminal. May be an input or output. D Drain Terminal. May be an input or output. IN Logic Control Input RON Ohmic Resistance between D and S RFLAT(ON) Flatness is defined as the difference between the maximum and minimum value of ON resistance as measured over the specified analog signal range. IS (OFF) Source Leakage Current with the Switch OFF ID (OFF) Drain leakage Current with the Switch OFF ID, IS (ON) Channel Leakage current with the Switch ON VD (VS) Analog Voltage on Terminals D, S CS (OFF) OFF Switch Source Capacitance. Measured with reference to ground. CD (OFF) OFF Switch Drain Capacitance. Measured with reference to ground. CD, CS (ON) ON Switch Capacitance. Measured with reference to ground. CIN Digital Input Capacitance tTRANSITION Delay Time measured between the 50% and 90% points of the digital inputs and the switch ON condition when switching from one address state to another. tON (EN) Delay Time between the 50% and 90% points of the EN digital input and the switch ON condition. tOFF (EN) Delay Time between the 50% and 90% points of the EN digital input and the switch OFF condition. tOPEN OFF Time measured between the 80% points of both switches when switching from one address state to another. Off Isolation A measure of unwanted signal coupling through an OFF switch. Crosstalk A measure of unwanted signal which is coupled through from one channel to another as a result of parasitic capacitance. Charge A measure of the glitch impulse transferred from the digital input to the analog output during switching. Injection On Response The Frequency Response of the ON Switch. On Loss The Loss Due to the ON Resistance of the Switch VINL Maximum Input Voltage for Logic “0” VINH Minimum Input Voltage for Logic “1” IINL (IINH) Input Current of the Digital Input IDD Positive Supply Current ISS Negative Supply Current –6– REV. B
