ADG4612

RECOMMENDED FOR NEW DESIGNS

Power Off Protection ±5 V, +12V, Quad SPST Switches with 5Ω On Resistance

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Overview

  • Power Off Protection
    Switch guaranteed OFF with no power supplies present Inputs are high impedance with no power
  • Switch turns OFF if input > VDD + VT
  • Over-voltage protection up to +16V
  • PSS Robust
  • Negative Signal Capability passes signals down to -5.5V
  • 6.1Ω Max On Resistance
  • 1.4Ω On Resistance Flatness
  • ±3V to ±5.5V dual supply
  • 3V to 12 V single supply
  • 3 V logic-compatible inputs
  • Rail-to-rail operation
  • 16-lead TSSOP and 16 lead 3mm x 3mm LFCSP

The ADG4612 & ADG4613 contain four independent single-pole/ single-throw (SPST) switches. The ADG4612 switches are turned on with Logic 1 on the appropriate control input. The ADG4613 has two switches with digital control logic similar to that of the ADG4612; the logic is inverted on the other two switches. Each switch conducts equally well in both directions when on and has an input signal range that extends to the supplies. The ADG4613 exhibits break-before-make switching action for use in multiplexer applications.

When no power supplies are present the switch remains in the OFF condition and the switch inputs are high impedance inputs. This ensures that no current flows that may damage the switch. This is very useful in application where analog signals may be present at the switch inputs before power or where the user has no control over the Power Supply Sequence.

In the off condition, signal levels up to 16V are blocked. Also, if the analog input signal levels exceed VDD by VT then the switch will turn off.

The ultralow on resistance of these switches make them ideal solutions for data acquisition and gain switching applications where low on resistance and distortion is critical. The on resistance profile is very flat over the full analog input range ensuring excellent linearity and low distortion when switching audio signals.

APPLICATIONS

  • Hot swap applications
  • Data acquisition systems
  • Battery-powered systems
  • Automatic test equipment
  • Communication systems
  • Relay Replacement

PRODUCT HIGHLIGHTS

  1. Power-Off Protection On Both S and D Pins.
  2. PSS Robustness.
  3. Overvoltage Protection up to 16 V.
  4. 5.2 Ω On Resistance.
  5. 16-Lead TSSOP and 3 mm × 3 mm LFCSP Packages.

ADG4612
Power Off Protection ±5 V, +12V, Quad SPST Switches with 5Ω On Resistance
ADG4612/ADG4613 Functional Block Diagram ADG4612/ADG4613 Pin Configuration
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Evaluation Kits

eval board
EVAL-ADG4612

ADG4612 Evaluation Board

Features and Benefits

  • 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 > VDD + VT
  • Overvoltage protection up to 16 V
  • PSS robust
  • Negative signal capability passes signals down to −5.5 V

Product Details

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 EVALADG4612EBZ.

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 VDD by VT, the switch turns off.

EVAL-ADG4612
ADG4612 Evaluation Board
eval-image-unavailable

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