ADG798

Data Sheet FEATURES Extreme high temperature operation Specified temperature range −55°C to +210°C (16-lead FLATPACK) −55°C to +175°C (16-lead TSSOP) 3.0 V to 5.5 V single supply ±2.5 V dual supply 10 Ω on resistance, maximum 2 Ω on-resistance flatness, maximum 12 ns switching times Single 8:1 multiplexer Low power consumption TTL-/CMOS-compatible inputs APPLICATIONS Downhole drilling and instrumentation Avionics Heavy industrial High temperature environments GENERAL DESCRIPTION The ADG798 is a low voltage, CMOS, analog multiplexer designed to operate at very high temperatures up to 210°C. The ADG798 switches one of eight inputs (S1 to S8) to a common output, D, as determined by the 3-bit binary address lines A0, A1, and A2. An EN input on the device enables or disables the device. When the device is disabled, all channels are switched off. The ADG798 features low power consumption and a 3.3 V to 5.5 V operating supply range. All channels exhibit break-beforemake switching action, preventing momentary shorting when switching channels. These switches are designed with an enhanced submicron process that provides low power dissipation, high switching speed, and very low on resistance. The on resistance (RON) is a maximum of 10 Ω and is closely matched between switches and very flat over the full signal range. The ADG798 operates equally well as either a multiplexer or a demultiplexer and has an input signal range that extends to the supplies. This mux is available in a 16-lead c...