Fault Protection and Detection, 10 Ω RON, Quad SPST Switches
When no power supplies are present, the switch 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 VDD or VSS by a threshold voltage, VT, then the switch turns off. Input signal levels up to +55 V or −55 V relative to ground are blocked, in both the powered and unpowered condition.
The low on resistance of these switches, combined with on-resistance flatness over a significant portion of the signal range make them an ideal solution for data acquisition and gain switching applications where excellent linearity and low distortion are critical.
- Source pins are protected against voltages greater than the supply rails, up to −55 V and +55 V.
- Source pins are protected against voltages between −55 V and +55 V, in an unpowered state.
- Overvoltage detection with digital output indicates operating state of switches.
- Trench isolation guards against latch-up.
- Optimized for low on resistance and on-resistance flatness.
- The ADG5412F/ADG5413F 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.
- Analog input/output modules
- Process control/distributed control systems
- Data acquisition
- Automatic test equipment
- Communication systems
- Relay replacement
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
The EVAL-ADG5412FEBZ is the evaluation board for the ADG5412F, which features four independently controlled single-pole/single-throw (SPST) switches. The ADG5412F hasovervoltage detection and protection circuitry on the source pins and is protected against signals up to −55 V and +55 V in both the powered and unpowered states.
The ADG5412F is soldered to the center of the evaluation board, and four 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, if required. Alternatively, a low dropout (LDO) regulator is provided for 5 V digital voltage control and to supply the LED, which is mounted to provide visual indication of the fault status of the switch.
Full specifications on the ADG5412F are available in the product data sheet, which should be consulted in conjunction with user guide (UG-731) when using the evaluation board.
A 16-lead TSSOP device can be clamped or soldered to the center of the evaluation board. Each pin of the device has a corresponding link from K1 to K16 that can be set to either VDD or GND. A wire screw terminal supplies VDD and GND. SMB connectors on the board allow additional external signals to be supplied to the device. In addition, there is space available at the top of the board for prototyping.
Full specifications of the device under test (DUT) are available in the corresponding product data sheet, which should be consulted in conjunction with this user guide when using the evaluation board.
Replacing Discrete Protection Components with Overvoltage Fault Protected...
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- 13 week(s) ago in Switches/Multiplexers
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