User Defined Fault Protection and Detection,10 R , Quad Channel Protector ON Data Sheet ADG5462F FEATURES FUNCTIONAL BLOCK DIAGRAM V V DD SS User defined secondary supplies set overvoltage level Overvoltage protection up to 55 V and +55 V D1 S1 Power-off protection up to 55 V and +55 V Overvoltage detection on source pins S2 D2 Minimum secondary supply level: 4.5 V single-supply D3 S3 Interrupt flag indicates fault status Low on resistance: 10 typical S4 D4 V V IN OUT On-resistance flatness: 0.5 maximum 4 kV human body model (HBM) ESD rating FF ADG5462F Latch-up immune under any circumstance POSFV NEGFV DR V to V analog signal range SS DD 5 V to 22 V dual supply operation Figure 1. 8 V to 44 V single-supply operation Fully specified at 15 V, 20 V, +12 V, and +36 V APPLICATIONS Analog input/output modules Process control/distributed control systems Data acquisition Instrumentation Avionics Automatic test equipment Communication systems The low on-resistance of these switches, combined with the GENERAL DESCRIPTION on-resistance flatness over a significant portion of the signal The ADG5462F contains four channels that are overvoltage range make them an ideal solution for data acquisition and protected. The channel protector is placed in series with the signal instrumentation applications where excellent linearity and low path and protects sensitive components from overvoltage faults distortion are critical. in that path. The channel protector prevents overvoltages when powered and unpowered, and it is ideal for use in applications PRODUCT HIGHLIGHTS where correct power supply sequencing cannot always be guaranteed. 1. Source pins (Sx) are protected against voltages greater than The primary supply voltages define the on-resistance profile, the secondary supply rails (POSFV and NEGFV), up to while the secondary supply voltages define the voltage level at 55 V and +55 V. which the overvoltage protection engages. 2. In an unpowered state, source pins (Sx) are protected When no power supplies are present, the channel remains in the off against voltages from 55 V to +55 V. condition, and the channel inputs are high impedance. Under 3. Overvoltage detection with digital output indicates the normal operating conditions, if the analog input signal levels on operating state of the channels. any Sx pin exceed positive fault voltage (POSFV) or negative fault 4. Trench isolation guards against latch-up. voltage (NEGFV) by a threshold voltage (V ), the channel turns 5. Optimized for low on-resistance and on-resistance flatness. T off and that Sx pin becomes high impedance. If the DR pin is 6. The ADG5462F operates from a dual power supply range of driven low, the drain pin (Dx) is pulled to the secondary supply 5 V to 22 V or a single power supply range of 8 V to 44 V. voltage that was exceeded. The output profile for each DR voltage level is shown in Figure 49. Input signal levels up to 55 V or +55 V relative to ground are blocked in both the powered and unpowered conditions. Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20152017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 12698-001ADG5462F Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuits ..................................................................................... 19 Applications ....................................................................................... 1 Terminology .................................................................................... 23 Functional Block Diagram .............................................................. 1 Theory of Operation ...................................................................... 24 General Description ......................................................................... 1 Switch Architecture .................................................................... 24 Product Highlights ........................................................................... 1 User Defined Fault Protection .................................................. 25 Revision History ............................................................................... 2 Applications Information .............................................................. 27 Specifications ..................................................................................... 3 Power Supply Rails ..................................................................... 27 15 V Dual Supply ....................................................................... 3 Power Supply Sequencing Protection ...................................... 27 20 V Dual Supply ....................................................................... 5 Power Supply Recommendations ............................................. 27 12 V Single Supply ........................................................................ 7 User Defined Signal Range ....................................................... 27 36 V Single Supply ........................................................................ 9 Low Impedance Channel Protection ....................................... 27 Continuous Current per Channel, Sx or Dx ........................... 10 High Voltage Surge Suppression .............................................. 27 Absolute Maximum Ratings .......................................................... 11 Intelligent Fault Detection ........................................................ 28 ESD Caution ................................................................................ 11 Large Voltage, High Frequency Signals ................................... 28 Pin Configurations and Function Descriptions ......................... 12 Outline Dimensions ....................................................................... 29 Typical Performance Characteristics ........................................... 13 Ordering Guide .......................................................................... 29 REVISION HISTORY 10/2017Rev. B to Rev. C 5/2015Rev. 0 to Rev. A Changes to Fault Drain Leakage Current With Overvoltage Added 16-Lead LFCSP Package ....................................... Universal Parameter, Table 1 ............................................................................. 3 Changes to Drain Leakage Current, ID, with Overvoltage Changes to Fault Drain Leakage Current With Overvoltage Parameter Test Condition/Comment, Table 3 ............................... 7 Parameter, Table 2 ............................................................................. 7 Changes to Drain Leakage Current, ID, with Overvoltage Changes to Fault Drain Leakage Current With Overvoltage Parameter Test Condition/Comment, Table 4 ............................... 9 Parameter, Table 4 ............................................................................ 9 Changes to Table 5 .......................................................................... 10 Updated Outline Dimensions ....................................................... 29 Changes to Table 6 .......................................................................... 11 Changes to Ordering Guide .......................................................... 29 Added Figure 3 Renumbered Sequentially ................................ 12 Changes to Table 7 .......................................................................... 12 1/2016Rev. A to Rev. B Added Figure 54 ............................................................................. 29 Changes to General Description Section ...................................... 1 Updated Outline Dimensions ....................................................... 29 Changes to Table 1 ............................................................................ 3 Changes to Ordering Guide .......................................................... 29 Changes to Channel On Leakage, I (On), I (On) Maximum D S Parameter, Table 2 .............................................................................. 5 1/2015Revision 0: Initial Version Changes to Table 3 ............................................................................ 7 Changes to Table 4 ............................................................................ 9 Rev. C Page 2 of 29