Datasheet ADG5208F, ADG5209F (Analog Devices)

Fault Protection, −0.4 pC QINJ, 8:1/Dual 4:1 Multiplexers Data Sheet ADG5208F /ADG5209F FEATURES FUNCTIONAL BLOCK DIAGRAMS Overvoltage protection up to −55 V and +55 V ADG5208F Power-off protection up to −55 V and +55 V Overvoltage detection on source pins S1 Low charge injection (QINJ): −0.4 pC Low on capacitance D ADG5208F: 20 pF ADG5209F: 14 pF Latch-up immune under any circumstance S8 Known state without digital inputs present VSS to VDD analog signal range 1-OF-8 ±5 V to ±22 V dual-supply operation DECODER 8 V to 44 V single-supply operation
001
Fully specified at ±15 V, ±20 V, +12 V, and +36 V A0 A1 A2 EN
13035- Figure 1. ADG5208F Functional Block Diagram
APPLICATIONS Analog input/output modules ADG5209F Process control/distributed control systems S1A Data acquisition DA Instrumentation S4A Avionics S1B Automatic test equipment DB Communication systems S4B Relay replacement 1-OF-4 DECODER
002
A0 A1 EN
13035- Figure 2. ADG5209F Functional Block Diagram
GENERAL DESCRIPTION
The ADG5208F and ADG5209F are 8:1 and dual 4:1 analog Input signal levels of up to −55 V or +55 V relative to ground are multiplexers. The ADG5208F switches one of eight inputs to a blocked, in both the powered and unpowered conditions. common output, and the ADG5209F switches one of four The low capacitance and charge injection of these switches make differential inputs to a common differential output. An EN input them ideal solutions for data acquisition and sample-and-hold on both devices enables or disables the device. Each channel applications, where low glitch switching and fast settling times conducts equally well in both directions when on, and each are required. channel has an input signal range that extends to the supplies.
PRODUCT HIGHLIGHTS
The digital inputs are compatible with 3 V logic inputs over the full operating supply range. 1. The source pins are protected against voltages greater than the supply rails, up to −55 V and +55 V. When no power supplies are present, the channel remains in the off 2. The source pins are protected against voltages between condition, and the switch inputs are high impedance. Under normal −55 V and +55 V in an unpowered state. operating conditions, if the analog input signal levels on any Sx pin 3. Trench isolation guards against latch-up. exceed positive fault voltage (VDD) or negative fault voltage (VSS) 4. Optimized for low charge injection and on capacitance. by a threshold voltage (VT), the channel turns off and that Sx pin 5. The ADG5208F/ADG5209F can be operated from a dual becomes high impedance. If the fault channel is selected, the drain supply of ±5 V up to ±22 V or a single power supply of 8 V pin is pul ed to the secondary supply voltage that was exceeded. up to 44 V.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAMS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±15 V DUAL SUPPLY ±20 V DUAL SUPPLY 12 V SINGLE SUPPLY 36 V SINGLE SUPPLY CONTINUOUS CURRENT PER CHANNEL, Sx, D, OR Dx ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS TERMINOLOGY THEORY OF OPERATION SWITCH ARCHITECTURE Overvoltage Reaction ESD Performance Trench Isolation FAULT PROTECTION Power-On Protection Power-Off Protection Digital Input Protection APPLICATIONS INFORMATION POWER SUPPLY RAILS POWER SUPPLY SEQUENCING PROTECTION SIGNAL RANGE POWER SUPPLY RECOMMENDATIONS HIGH VOLTAGE SURGE SUPPRESSION LARGE VOLTAGE, HIGH FREQUENCY SIGNALS OUTLINE DIMENSIONS ORDERING GUIDE