ADG5421F
Info : RECOMMENDED FOR NEW DESIGNS
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ADG5421F

±60 V Fault Protection and Detection, 11 Ω RON, Dual SPST Switch

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 1
1ku List Price Starting From $2.71
Features
  • Overvoltage fault protection up to ±60 V on S1 and S2 pins
  • Power-off protection up to ±60 V on S1 and S2 pins
  • Known state without digital inputs present
  • Low on resistance of 11 Ω typical
  • Ultraflat, on resistance
  • Latch-up immune under any circumstance
  • 3.5 kV human body model (HBM) ESD rating
  • VSS to VDD −2 V signal range
    • Fully specified at ±15 V, ±20 V, +12 V, and +36 V
    • ±5 V to ±22 V dual-supply operation
    • 8 V to 44 V single-supply operation
  • 10-lead, 3 mm × 2 mm, LFCSP
Additional Details
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The ADG5421F is a dual SPST, low on resistance switch that features overvoltage protection, power-off protection, and overvoltage detection on the source pins.

When no power supplies are present, the switch remains in the off condition, and the switch inputs are high impedance. When powered, if the analog input signal levels on either of the Sx pins exceed VDD or VSS by the threshold voltage, VT, both switches turn off together, and the open-drain fault flag (FF) pin pulls to a logic low. Input signal levels up to +60 V or −60 V relative to ground are blocked in both the powered and unpowered condition.

The switches turn on with a Logic 1 input and conduct equally well in both directions. The digital input is compatible with 1.8 V logic inputs over the full operating supply range.

APPLICATIONS

  • Analog input and output modules
  • Process control and distributed control systems
  • Data acquisition
  • Instrumentation
  • Avionics
  • Automatic test equipment
  • Communication systems
  • Relay replacement
Part Models 1
1ku List Price Starting From $2.71

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADG5421FBCPZ-RL7
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  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADG5421F

Evaluating the ADG5421F Fault Protection and Detection, 12 Ω RON, SPST Switch

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EVAL-ADG5421F

Evaluating the ADG5421F Fault Protection and Detection, 12 Ω RON, SPST Switch

Evaluating the ADG5421F Fault Protection and Detection, 12 Ω RON, SPST Switch

Features and Benefits

  • Supply voltages
    • Dual supply: ±5 V to ±22 V
    • Single supply: 8 V to 44 V
  • Protected against overvoltage on the source pins
    • Signal voltages up to −60 V and +60 V
  • LED for visual overvoltage indication
  • Parallel interface compatible with 1.8 V logic

Product Detail

The EVAL-ADG5421FEBZ is the evaluation board for the ADG5421F, which features two SPST switch channels. The ADG5421F has overvoltage fault detection and protection circuitry on the source pins and is protected against signals up to −60 V and +60 V in both the powered and unpowered states.

Figure 1 in the user guide shows the EVAL-ADG5421FEBZ in a typical evaluation setup. The ADG5421F is soldered to the center of the evaluation board, and 2-wire screw terminals are provided to connect to each of the source and drain pins. Three screw terminals are used to power the device, with a fourth terminal used to provide a user defined digital voltage to supply the LED, which is mounted to provide visual indication of the fault status of the switch.

For full details on the ADG5421F, see the ADG5421F data sheet, which must be consulted in conjunction with the user guide when using this evaluation board.

Tools & Simulations

Tools & Simulations 3

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Reference Designs

Reference Designs 3

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Quad-Channel IEPE Vibration Sensor Measurement System

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Quad-Channel IEPE Vibration Sensor Measurement System

Features and Benefits

  • Quad Channel IEPE-Compatible Vibration Sensor Interface
  • Channel Independent Excitation Source and Sensor Bias Removal Circuitry
  • Analog Overvoltage and Undervoltage Protection
  • Sensor Frequency Response from DC up to 54 kHz
  • Synchronized, Full Bandwidth Data Measurement and Capture
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24-Bit Data Acquisition System for IEPE Sensors

Features and Benefits

  • IEPE compatible data acquisition system
  • Piezo and MEMs sensors
  • 54 kHz analog input bandwidth
  • Arduino form factor compatible
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Videos

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CN0549 - CbM Development Platform

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Easily Connect Sensors with ADI's Robust Industrial Signal Chains

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Precision Low Latency Development Kit

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Precision Low Latency Development Kit

Features and Benefits

  • 4 Analog Input Channels with Configurable Voltage Ranges
  • 4 Analog Output Channels with Configurable Voltage Ranges
  • 250 ns Latency between ADC Measurement and DAC Settling
  • Analog Front End Board Modeling and Simulation Compatible with MATLAB and Python in Rx or Tx Paths
  • All Power and Digital Connections provided by the Interface Connector
View Detailed Reference Design external link

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