Datasheet ADG725, ADG731 (Analog Devices) - 9

ADG725/ADG731 TERMINOLOGY
VDD Most Positive Power Supply Potential. VSS Most Negative Power Supply in a Dual-Supply Application. In single-supply applications, connect to GND. IDD Positive Supply Current. ISS Negative Supply Current. GND Ground (0 V) Reference. S Source Terminal. May be an input or output. D Drain Terminal. May be an input or output. VD (VS) Analog Voltage on Terminals D, S. RON Ohmic Resistance between D and S. ⌬RON On Resistance Match between any Two Channels. 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. VINL Maximum Input Voltage for Logic 0. VINH Minimum Input Voltage for Logic 1. IINL (IINH) Input Current of the Digital Input. 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% points of the eighth clock falling edge and 90% points of the output when switching from one address state to another. tD OFF time measured between the 80% points of both switches when switching from one address state to another. Charge Injection A measure of the glitch impulse transferred from the digital input to the analog output during switching. OFF Isolation A measure of unwanted signal coupling through an OFF switch. Crosstalk A measure of unwanted signal is coupled through from one channel to another as a result of parasitic capacitance. On Response The Frequency Response of the ON Switch. Insertion Loss The Loss Due to the On Resistance of the Switch. REV. B –9–