Fault Protection, 6 R , SPST Switch with ON 0.6 k Feedback Channel Data Sheet ADG5401F FEATURES FUNCTIONAL BLOCK DIAGRAM Analog output protection and detection solution ADG5401F Overvoltage protection up to 60 V on S and SFB pins D S Power off protection up to 60 V on S and SFB pins Integrated 0.6 k secondary feedback channel POC Known output under all conditions DFB SFB User enabled, power-on condition pulls source to 0 V Known state without digital inputs present FF IN Optimized resistance for measurement channel and feedback channel Figure 1. Low on resistance of 6 typical on signal channel GENERAL DESCRIPTION Ultraflat, on resistance on signal channel The ADG5401F main channel switch is a SPST, low on-resistance Latch-up immune switch that features overvoltage protection, power off protection, 3 mm 2 mm LFCSP and overvoltage detection on the source pins (S and SFB). The VSS to VDD 2 V signal range ADG5401F also features a protected secondary feedback channel Fully specified at 15 V, 20 V, +12 V, and +36 V for use with digital-to-analog converter (DAC) or amplifier outputs. 5 V to 22 V dual-supply operation 8 V to 44 V single-supply operation When no power supplies are present, the switch remains in the off condition, and the switch inputs are high impedance. APPLICATIONS When powered, if the analog input signal levels on the S pin DAC output protection exceed VDD or VSS by a threshold voltage (VT) the switch turns Amplifier output protection Analog output modules off, the open-drain FF pin pulls to a logic low and a path between Process control/distributed control systems the D and DFB pins is switched on to prevent an open-loop Data acquisition condition on the amplifier output. Input signal levels up to +60 V Instrumentation or 60 V relative to ground are blocked, in both the powered and unpowered condition. The selectable POC pin function allows COMPANION PRODUCTS the protected switch terminal, S, to be connected to GND to Current/Voltage Output DAC: AD5423 minimize glitches on the output. The switch turns on with a Precision Amplifier: ADA4077-1 Logic 1 input and conducts equally well in both directions. The Rail-to-Rail Output, JFET Op Amp: ADA4625-1 digital input is compatible with 1.8 V logic inputs over the full operating supply range. PRODUCT HIGHLIGHTS 1. Source pin is protected against voltages greater than the supply rails, up to 60 V and +60 V in both powered and unpowered states. 2. Overvoltage detection with digital output indicates operating state of switches. 3. Trench isolation guards against latch-up. 4. The ADG5401F can operate from a dual supply range of 5 V to 22 V or a single-supply range of +8 V to +44 V. 5. Negative channel metal oxide semiconductor (NMOS) only architecture requires 2 V headroom toward VDD and provides low RON and ultraflat RON across the VSS to VDD 5 V signal range. Rev. 0 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. Tel: 781.329.4700 2020 Analog Devices, Inc. All rights reserved. No 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 22052-001ADG5401F Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Terminology .................................................................................... 26 Applications ...................................................................................... 1 Theory of Operation ...................................................................... 27 Companion Products ....................................................................... 1 Switch Architecture ................................................................... 27 Functional Block Diagram .............................................................. 1 Overvoltage Fault Protection ................................................... 28 General Description ......................................................................... 1 Applications Information ............................................................. 29 Product Highlights ........................................................................... 1 Power Supply Rails ..................................................................... 29 Revision History ............................................................................... 2 Power Supply Recommendations ............................................ 29 Specifications .................................................................................... 3 Power Supply Sequencing Protection ..................................... 29 15 V Dual Supply ....................................................................... 3 Signal Range ................................................................................ 29 20 V Dual Supply ....................................................................... 6 Low Impedance Output Channel Protection ......................... 29 12 V Single Supply ....................................................................... 9 Intelligent Fault Detection ........................................................ 30 36 V Single Supply ..................................................................... 12 Large Voltage, High Frequency Signals .................................. 30 Continuous Current per Channel, S or D ............................... 14 Amplifier or DAC Output Protection ..................................... 30 Absolute Maximum Ratings ......................................................... 15 Open-Loop Prevention ............................................................. 30 Thermal Resistance .................................................................... 15 Power-On Condition ................................................................. 31 Electrostatic Discharge (ESD) Ratings .................................... 15 Switches in a Known State ........................................................ 31 ESD Caution................................................................................ 15 High Voltage Surge Suppression ............................................. 31 Pin Configuration and Function Descriptions .......................... 16 Outline Dimensions ....................................................................... 32 Typical Performance Characteristics ........................................... 17 Ordering Guide .......................................................................... 32 Test Circuits .................................................................................... 22 REVISION HISTORY 8/2020Revision 0: Initial Version Rev. 0 Page 2 of 32