Enhanced ProductAD9218-EPPIN CONFIGURATION AND FUNCTION DESCRIPTIONS)A(MSB AAAAAAAADNCDDNDVEVGD9D8D7D6D5D4D3D2484746454443424140393837GND 136 D1AAINA 235 D0AAINA 334 GNDDFS/GAIN 433 VDDREFINA 532 GNDAD9218-EPREFOUT 631 VDTOP VIEWREFINB 730 V(Not to Scale)DS1 829 GNDS2 928 VDDAINB 1027 GNDAINB 1126 D0BGND 1225 D1B131415161718192021222324DBBBBBBBBBVDDND9NCVGD8D7D6D5D4D3D2E) D 005 (MSB 17309- Figure 5. Pin Configuration Table 7. Pin Function Descriptions Pin NumberMnemonic Description 1, 12, 16, 27, 29, GND Ground. 32, 34, 45 2 AINA Analog Input for Channel A. 3 A A Analog Input for Channel A (Complementary). IN 4 DFS/GAIN Data Format Select and Analog Input Gain Mode. Low = offset binary output available, 1 V p-p supported; high = twos complement output available, 1 V p-p supported. 5 REFINA Reference Voltage Input for Channel A. 6 REFOUT Internal Reference Voltage. 7 REFINB Reference Voltage Input for Channel B. 8 S1 User Select 1. 9 S2 User Select 2. 10 A B Analog Input for Channel B (Complementary). IN 11 AINB Analog Input for Channel B. 13, 30, 31, 48 VD Analog Supply. 14 ENCB Encode B. Clock input for Channel B. 15, 28, 33, 46 VDD Digital Supply. 17 to 26 D9B to D0B Digital Output for Channel B (D9B = MSB). 35 to 44 D0A to D9A Digital Output for Channel A (D9A = MSB). 47 ENCA Encode A. Clock input for Channel A. Rev. 0 | Page 9 of 11 Document Outline FEATURES ENHANCED PRODUCT FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DC SPECIFICATIONS DIGITAL SPECIFICATIONS AC SPECIFICATIONS SWITCHING SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS OUTLINE DIMENSIONS ORDERING GUIDE