Datasheet ADG798 (Analog Devices)

High Temperature, Low Voltage 8-Channel Multiplexer Data Sheet ADG798 FEATURES Extreme high temperature operation FUNCTIONAL BLOCK DIAGRAM Specified temperature range −55°C to +210°C (16-lead FLATPACK) ADG798 −55°C to +175°C (16-lead TSSOP) S1 3.0 V to 5.5 V single supply ±2.5 V dual supply 10 Ω on resistance, maximum D 2 Ω on-resistance flatness, maximum 12 ns switching times Single 8:1 multiplexer S8 Low power consumption TTL-/CMOS-compatible inputs 1 OF 8 DECODER APPLICATIONS
001
Downhole drilling and instrumentation A0 A1 A2 EN
14880-
Avionics
Figure 1.
Heavy industrial High temperature environments GENERAL DESCRIPTION
The ADG798 is a low voltage, CMOS, analog multiplexer packages have an operating temperature range of −55°C to +210°C. designed to operate at very high temperatures up to 210°C. The A 16-lead TSSOP package is also available that has an operating ADG798 switches one of eight inputs (S1 to S8) to a common temperature range of −55°C to +175°C. All packages are designed output, D, as determined by the 3-bit binary address lines A0, for robustness at extreme temperatures, and are qualified for A1, and A2. An EN input on the device enables or disables the 1000 hours of continuous operation at the maximum temperature device. When the device is disabled, all channels are switched off. rating. The ADG798 features low power consumption and a 3.3 V to The ADG798 is a member of a growing series of high temperature 5.5 V operating supply range. All channels exhibit break-before- qualified products offered by Analog Devices, Inc. For a complete make switching action, preventing momentary shorting when selection table of available high temperature products, see the switching channels. These switches are designed with an enhanced high temperature product list and qualification data available at submicron process that provides low power dissipation, high http://www.analog.com/hightemp. switching speed, and very low on resistance.
PRODUCT HIGHLIGHTS
The on resistance (RON) is a maximum of 10 Ω and is closely 1. Single-Supply/Dual-Supply Operation. matched between switches and very flat over the ful signal range. The ADG798 is fully specified and guaranteed with 3.3 V The ADG798 operates equally well as either a multiplexer or a and 5 V single-supply rails and ±2.5 V dual-supply rails. demultiplexer and has an input signal range that extends to 2. Low RON. the supplies. The RON of the ADG798 is specified at 5 Ω, typical, at 210°C. 3. Low Power Consumption. This mux is available in a 16-lead ceramic flat package The power consumption of the ADG798 is specified at (FLATPACK) and a 16-lead ceramic flat package with reverse <0.01 μW. formed gul wing leads (FLATPACK_RF). Both of the flat 4. Guaranteed Break-Before-Make Switching Action.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DUAL SUPPLY CONTINUOUS CURRENT PER CHANNEL, Sx OR D ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TRUTH TABLE TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS TERMINOLOGY THEORY OF OPERATION APPLICATIONS INFORMATION POWER SUPPLY SEQUENCING OUTLINE DIMENSIONS ORDERING GUIDE