Document
Data Sheet
FEATURES
Overvoltage protection up to −55 V and +55 V Power-off protection up to −55 V and +55 V Overvoltage detection on source pins Low charge injection (QINJ): −0.4 pC Low on capacitance
ADG5208F: 20 pF ADG5209F: 14 pF Latch-up immune under any circumstance Known state without digital inputs present VSS to VDD analog signal range ±5 V to ±22 V dual-supply operation 8 V to 44 V single-supply operation Fully specified at ±15 V, ±20 V, +12 V, and +36 V
APPLICATIONS
Analog input/output modules Process control/distributed control systems Data acquisition Instrumentation Avionics Automatic test equipment Communication systems Relay replacement
GENERAL DESCRIPTION
The ADG5208F and ADG5209F are 8:1 and dual 4:1 analog multiplexers. The ADG5208F switches one of eight inputs to a common output, and the ADG5209F switches one of four differential inputs to a common differential output. An EN input on both devices enables or disables the device. Each channel conducts equally well in both directions when on, and each channel has an input signal range that extends to the supplies. The digital inputs are compatible with 3 V logic inputs over the full operating supply range.
When no power supplies are present, the channel remains in the off condition, and the switch inputs are high impedance. Under normal operating conditions, if the analog input signal levels on any Sx pin exceed positive fault voltage (VDD) or negative fault voltage (VSS) by a threshold voltage (VT), the channel turns off and that Sx pin becomes high impedance. If the fault channel is selected, the drain pin is pulled to the secondary supply voltage that was exceeded.
Rev. A
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13035-001
Fault Protection, −0.4 pC QINJ, 8:1/Dual 4:1 Multiplexers ADG5208F/ADG5209F
FUNCTIONAL BLOCK DIAGRAMS
ADG5208F
S1
D
S8
1-OF-8 DECODER
A0 A1 A2 EN
Figure 1. ADG5208F Functional Block Diagram
ADG5209F
S1A DA
S4A
S1B DB
S4B
1-OF-4 DECODER
A0 A1 EN
Figure 2. ADG5209F Functional Block Diagram
Input signal levels of up to −55 V or +55 V relative to ground are blocked, in both the powered and unpowered conditions. The low capacitance and charge injection of these switches make them ideal solutions for data acquisition and sample-and-hold applications, where low glitch switching and fast settling times are required.
PRODUCT HIGHLIGHTS
1. The source pins are protected against voltages greater than the supply rails, up to −55 V and +55 V.
2. The source pins are protected against voltages between −55 V and +55 V in an unpowered state.
3. Trench isolation guards against latch-up. 4. Optimized for low charge injection and on capacitance. 5. The ADG5208F/ADG5209F can be operated from a dual
supply of ±5 V up to ±22 V or a single power supply of 8 V up to 44 V.
13035-002
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ADG5208F/ADG5209F
TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3
±15 V Dual Supply ....................................................................... 3 ±20 V Dual Supply ....................................................................... 5 12 V Single Supply........................................................................ 7 36 V Single Supply........................................................................ 9 Continuous Current per Channel, Sx, D, or Dx..................... 11 Absolute Maximum Ratings.......................................................... 12 ESD Caution................................................................................ 12 Pin Configurations and Function Descriptions ......................... 13 Typical Performance Characteristics ........................................... 15
REVISION HISTORY
3/16—Rev. 0 to Rev. A .