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Analog Devices Launches Industry’s First Quad-Channel Protector and Multiplexers with Programmable Fault Detection

Jul 9 2015 - Norwood, MA
  • ADG5462F: Industry's first quad-channel protector with programmable fault detectionAnalog Devices, Inc. (NASDAQ: ADI) today introduced a quad-channel protector and two multiplexers offering +/-55-V overvoltage protection (OVP) for precision converters, amplifiers and other components that operate from a low voltage of 4.5 V up to 36 V.  The ADG5462F quad channel protector, ADG5248F 8:1 multiplexer and ADG5249F differential 4:1 multiplexer offer +/-55-V OVP in power-on and power-off stages and provide robust, precision protection against hot-swapping and operator miss-use events, thereby protecting downstream analog components. By providing on-chip fault diagnostics, the new devices are the first in the industry to detect and avoid defective channels, which simplifies fault detection algorithms and improves system uptime. The new products maximize design flexibility by enabling users to define fault-trigger levels independent of primary supplies. By also removing the need for multiple discrete protection components, the ADG5462F, ADG5248F and ADG5249F optimize PCB area and simplify the design process. The devices are optimized for precision instrumentation, process control and avionics applications.


    The ADG5248F 8:1 multiplexer and ADG5249F differential 4:1 multiplexer maximize throughput for small signal measurement such as thermocouples or resistance temperature detectors (RTDs) by offering best-in-class, low-fault leakage of 70 nA, which is 10 times lower than competing solutions, and on-leakage of 20 nA. These levels ensure that the user can take accurate measurements when other multiplexer I/O channels are in an over-voltage fault condition. 

    Key Features:

    Over-voltage detection on source pins
    • Minimum secondary supply level: 4.5-V single-supply
    • Over-voltage protection up to +/−55 V 
    • 4-kV HBM (human body model) ESD (ADG5462F)
    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
    Operating Temperature Range −40°C to +125°

    ADG5462F: Ultra-low on-resistance of 10 ohm and on-resistance flatness of 0.5 ohm minimizes system total harmonic distortion and enhances noise performance.

    ADG5248F/49F: Ultra-low charge injection of 0.8 pC and on-capacitance of 19 pF enables higher accuracy, faster channel switching in multiplexed systems.

    Family Optimized for Low RON

     Product Configuration  Fault
    Trigger
    Threshold
    Fault
    Mode
    Indicator
    Fault
    Flag
    Packaging
    ADG5462F Quad Channel Protector Secondary Supplies
    Selectable Secondary Supplies or Open Circuit Indicator of Fault 16-lead TSSOP/
    LFCSP
    ADG5412F/
    ADG5413F
    Quad SPST
    Primary Supplies Open Circuit Indicator of Fault 16-lead TSSOP/
    LFCSP
    ADG5412BF/
    ADG5413BF
    Quad SPST & Bidirectional OVP
    Primary Supplies Open Circuit Indicator of Fault
    16-lead TSSOP/
    LFCSP
    ADG5404F
    4:1 Multiplexer Primary Supplies
    Primary Supplies
    Selectable Rails or Open Circuit
    Indicator of Fault & Source of Fault
    14-lead TSSOP
    16-lead 
    LFCSP
    ADG5436F
    Dual SPDT
    Primary Supplies
    Selectable Rails or Open Circuit
    Indicator of Fault & Source of Fault
    16-lead TSSOP/
    LFCSP

    Family Optimized for Low Charge Injection

     Product Configuration  Fault
    Trigger
    Threshold
    Fault
    Mode
    Indicator
    Fault
    Flag
    Packaging (Released)
    ADG5248F 8:1 Multiplexer
    Secondary Supplies
    Secondary Supplies Indicator of Fault & Source of Fault 20-lead TSSOP
    ADG5249F Differential 4:1 Multiplexer
    Secondary Supplies Secondary Supplies Indicator of Fault & Source of Fault 20-lead TSSOP
    ADG5208F 8:1 Multiplexer
    Primary Supplies
    Rails None
    16-lead TSSOP
    ADG5209F
    Differential 4:1 Multiplexer
    Primary Supplies
    Rails
    None
    16-lead TSSOP
    ADG5243F
    (sampling)
    Triple SPDT
    Secondary Supplies
    Secondary Supplies
    Indicator of Fault & Source of Fault
    20-lead TSSOP

  • About Analog Devices
  • Analog Devices designs and manufactures semiconductor products and solutions. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure and connect. Visit http://www.analog.com
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