link to page 8 ADG508A/ADG509APIN CONFIGURATIONS AND FUNCTION DESCRIPTIONSENA0NCA1A2ENA0NCA1A232120 193212019A0 116 A1V418 GNDV4PIN 118 GNDENSS215 A2SSIDENTIFIERS1 517 VS1 517 VVDDDDSS314 GNDADG508AADG508ANC 616 NCADG508AS1NC 616 NC4TOP VIEW13 VTOP VIEWDDTOP VIEW(Not to Scale)S2 7(Not to Scale)15 S5(Not to Scale)S2 5S2S512 S5715S3 814 S6S3 611 S6S3 814 S6S4 710 S7 3 4 5 9 -00 910 11 12 13 00 10111213 NC = NO CONNECT -00 DNC = NO CONNECT 1- 89S8 51 DS4 05 NCS8S7S4D 051 0 000 00 NCS8S7 0 Figure 3. ADG508A DIP, SOIC Figure 4. ADG508A LCC Figure 5. ADG508A PLCC Table 4. ADG508A Pin Function DescriptionPin NumberDIP/SOIC PLCC/LCCMnemonicDescription 1 2 A0 Logic Control Input. 2 3 EN Active High Digital Input. When low, the device is disabled and all switches are off. When high, Ax logic inputs determine on switches. 3 4 VSS Most Negative Power Supply Potential in Dual Supplies. In single-supply applications, it can be connected to ground. 4 5 S1 Source Terminal 1. Can be an input or an output. 5 7 S2 Source Terminal 2. Can be an input or an output. 6 8 S3 Source Terminal 3. Can be an input or an output. 7 9 S4 Source Terminal 4. Can be an input or an output. 8 10 D Drain Terminal. Can be an input or an output. 9 12 S8 Source Terminal 8. Can be an input or an output. 10 13 S7 Source Terminal 7. Can be an input or an output. 11 14 S6 Source Terminal 6. Can be an input or an output. 12 15 S5 Source Terminal 5. Can be an input or an output. 13 17 VDD Most Positive Power Supply Potential. 14 18 GND Ground (0 V) Reference. 15 19 A2 Logic Control Input. 16 20 A1 Logic Control Input. N/A 1 NC No Connect. N/A 6 NC No Connect. N/A 11 NC No Connect. N/A 16 NC No Connect. Table 5. ADG508A Truth Table A2A1A0ENOn Switch X1 X1 X1 0 None X 0 0 0 1 1 0 0 1 1 2 0 1 0 1 3 0 1 1 1 4 1 0 0 1 5 1 0 1 1 6 1 1 0 1 7 1 1 1 1 8 1 X = don’t care. Rev. D | Page 8 of 16 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAMS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DUAL SUPPLY SINGLE SUPPLY ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS SINGLE-SUPPLY OCTAL DAC APPLICATION OUTLINE DIMENSIONS ORDERING GUIDE