2.1 On Resistance, 15 V/+12 V/5 V iCMOS Dual SPST Switches Data Sheet ADG1421/ADG1422/ADG1423 FEATURES FUNCTIONAL BLOCK DIAGRAM 2.1 on resistance ADG1421 0.5 maximum on resistance flatness S1 Up to 250 mA continuous current IN1 D1 Fully specified at +12 V, 15 V, 5 V D2 No V supply required L IN2 S2 3 V logic-compatible inputs Rail-to-rail operation 10-lead MSOP and 10-lead, 3 mm 3 mm LFCSP packages SWITCHES SHOWN FOR A LOGIC 0 INPUT Figure 1. ADG1421 Functional Block Diagram APPLICATIONS Automatic test equipment ADG1422 Data acquisition systems S1 Relay replacements IN1 D1 Battery-powered systems D2 Sample-and-hold systems IN2 S2 Audio signal routing Video signal routing Communication systems SWITCHES SHOWN FOR A LOGIC 0 INPUT Figure 2. ADG1422 Functional Block Diagram GENERAL DESCRIPTION The ADG1421/ADG1422/ADG1423 contain two independent ADG1423 single-pole/single-throw (SPST) switches. The ADG1421 and S1 ADG1422 differ only in that the digital control logic is inverted. IN1 D1 The ADG1421 switches are turned on with Logic 1 on the D2 appropriate control input, and Logic 0 is required for the IN2 S2 ADG1422. The ADG1423 has one switch with digital control logic similar to that of the ADG1421 the logic is inverted on SWITCHES SHOWN FOR A LOGIC 0 INPUT the other switch. The ADG1423 exhibits break-before-make Figure 3. ADG1423 Functional Block Diagram switching action for use in multiplexer applications. Each switch conducts equally well in both directions when on and The on resistance profile is very flat over the full analog input has an input signal range that extends to the supplies. In the range ensuring excellent linearity and low distortion when off condition, signal levels up to the supplies are blocked. switching audio signals. The iCMOS construction ensures The iCMOS (industrial CMOS) modular manufacturing process ultralow power dissipation, making the part ideally suited for combines high voltage, complementary metal-oxide semiconductor portable and battery-powered instruments. (CMOS) and bipolar technologies. It enables the development PRODUCT HIGHLIGHTS of a wide range of high performance analog ICs capable of 33 V 1. 2.4 maximum on resistance at 25C. operation in a footprint that no other generation of high voltage 2. Minimum distortion. parts has achieved. Unlike analog ICs using conventional CMOS 3. 3 V logic-compatible digital inputs: VINH = 2.0 V, VINL = 0.8 V. processes, iCMOS components can tolerate high supply voltages 4. No VL logic power supply required. while providing increased performance, dramatically lower 5. 10-lead MSOP and 10-lead, 3 mm 3 mm LFCSP packages. power consumption, and reduced package size. Rev. 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Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 08487-003 08487-002 08487-001ADG1421/ADG1422/ADG1423 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Continuous Current per Channel, S or D ..................................6 Applications ....................................................................................... 1 Absolute Maximum Ratings ............................................................7 General Description ......................................................................... 1 Thermal Resistance .......................................................................7 Functional Block Diagram .............................................................. 1 ESD Caution...................................................................................7 Product Highlights ........................................................................... 1 Pin Configuration and Function Descriptions ..............................8 Revision History ............................................................................... 2 Typical Performance Characteristics ..............................................9 Specifications ..................................................................................... 3 Test Circuits ..................................................................................... 12 15 V Dual Supply ....................................................................... 3 Terminology .................................................................................... 14 +12 V Single Supply ..................................................................... 4 Outline Dimensions ....................................................................... 15 5 V Dual Supply ......................................................................... 5 Ordering Guide .......................................................................... 16 REVISION HISTORY 7/14Rev. 0 to Rev. A Changes to Table 1 ............................................................................ 3 Updated Outline Dimensions ....................................................... 15 10/09Revision 0: Initial Version Rev. A Page 2 of 16