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Power-Off Protection ±5 V, +12 V, and +5 V Quad SPST Switches
FEATURES
Full featured evaluation board for the ADG4612
Power-off protection
Switch guaranteed off with no power supplies present
Inputs are high impedance with no power
Switch turns off if input > V
Overvoltage protection up to 16 V
PSS robust
Negative signal capability passes signals down to −5.5 V
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
+ V
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EVALUATION BOARD PHOTOGRAPH
Evaluation Board User Guide
GENERAL DESCRIPTION
This user guide describes the evaluation board for the
ADG4612 quad SPST switches.
Figure 1 shows the EVAL-ADG4612EBZ. The 16-lead TSSOP
ADG4612 is soldered onto the center of the evaluation board and
is designated as U2.
The evaluation kit contains a fully fitted printed circuit board
(PCB). Full details about the part are available in the ADG4612
data sheet, which should be consulted when using the EVAL-
ADG4612EBZ.
When power supplies are not present, the switch remains off,
and the switch inputs are high impedance, which ensures that
current does not damage the switch. This is useful in applications
where analog signals can be present at the switch inputs before
power, or where the user has no control over the power supply
sequence.
When off, signal levels up to 16 V are blocked. In addition, if the
analog input signal levels exceed V
Figure 1.
Rev. 0 | Page 1 of 8
UG-137
by V
, the switch turns off.
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Summary of Contents for Analog Devices EVAL-ADG4612EBZ
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Page 1: Features
Power-off protection ADG4612 quad SPST switches. Switch guaranteed off with no power supplies present Figure 1 shows the EVAL-ADG4612EBZ. The 16-lead TSSOP Inputs are high impedance with no power ADG4612 is soldered onto the center of the evaluation board and Switch turns off if input >... -
Page 2: Table Of Contents
UG-137 Evaluation Board User Guide TABLE OF CONTENTS Features ....................1 Power Supplies ................3 General Description ................. 1 Switch Control Connectors ............3 Evaluation Board Photograph ............1 Evaluation Board Schematic and Artwork ........4 Revision History ................2 Ordering Information ...............7 Evaluation Board Hardware ............ -
Page 3: Evaluation Board Hardware
Evaluation Board User Guide UG-137 EVALUATION BOARD HARDWARE SWITCH CONTROL CONNECTORS HARDWARE DESCRIPTION The ADG4612 offers a standard CMOS/LVTTL parallel interface ADG4612 evaluation kit contains a fully fitted PCB. consisting of four IN inputs. The IN1, IN2, IN3, and IN4 input The evaluation board allows the user to connect the signals that pins control the switch state and operation mode of the ADG4612. -
Page 4: Evaluation Board Schematic And Artwork
UG-137 Evaluation Board User Guide EVALUATION BOARD SCHEMATIC AND ARTWORK Figure 2. Evaluation Board Circuitry Schematic Rev. 0 | Page 4 of 8... - Page 5 Evaluation Board User Guide UG-137 Figure 3. Evaluation Board Component Placement Drawing Figure 4. Evaluation Board Component Side PCB Drawing Rev. 0 | Page 5 of 8...
- Page 6 UG-137 Evaluation Board User Guide Figure 5. Evaluation Board Solder Side PCB Drawing Rev. 0 | Page 6 of 8...
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Page 7: Ordering Information
3-pin terminal block, PCB (5 mm pitch) FEC 151790 2-pin terminal block, PCB (5 mm pitch) FEC 151789 Power-off protection ±5 V, +12 V, quad SPST switch Analog Devices, Inc. ADG4612BRUZ with 5 Ω on resistance Rev. 0 | Page 7 of 8... - Page 8 By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement.
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