Datasheet AD7780 (Analog Devices) - 9

AD7780 TYPICAL PERFORMANCE CHARACTERISTICS 8,388,670 60 8,388,660 8,388,650 8,388,640 40 E 8,388,630 NC DE 8,388,620 RRE CO 8,388,610 CCU O 20 8,388,600 8,388,590 8,388,580 8,388,570 0 0 200 400 600 800 1000
08 11 0
8,388,390 8,388,408 8,388,426 8,388,444
0 5- 5-
SAMPLE
94
CODE
94 07 07 Figure 8. Noise (VREF = AVDD, Update Rate = 16.7 Hz, Gain = 128) Figure 11. Noise Distribution Histogram (VREF = AVDD, Update Rate = 10 Hz, Gain = 128)
60 8,388,630 8,388,625 8,388,620 40 8,388,615 E NC 8,388,610 DE RRE CO 8,388,605 CCU O 20 8,388,600 8,388,595 8,388,590 0 8,388,585 8,388,570 8,388,594 8,388,618 8,388,642 8,388,666
09 12 0
0 200 400 600 800 1000
0 5- 5-
CODE
94
SAMPLE
94 07 07 Figure 9. Noise Distribution Histogram Figure 12. Noise (VREF = AVDD, Update Rate = 16.7 Hz, Gain = 1) (VREF = AVDD, Update Rate = 16.7 Hz, Gain = 128)
8,388,460 200 8,388,450 150 8,388,440 E 8,388,430 NC DE RRE 100 CO 8,388,420 CCU O 8,388,410 50 8,388,400 8,388,390 0 0 200 400 600 800 1000
10 0 13
8,388,585 8,388,593 8,388,601 8,388,609 8,388,617 8,388,625
0 5- 5-
SAMPLE
94
CODE
94 07 07 Figure 10. Noise (VREF = AVDD, Update Rate = 10 Hz, Gain = 128 ) Figure 13. Noise Distribution Histogram (VREF = AVDD, Update Rate = 16.7 Hz, Gain = 1) Rev. A | Page 8 of 16 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING CHARACTERISTICS Circuit and Timing Diagrams ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS OUTPUT NOISE AND RESOLUTION THEORY OF OPERATION FILTER, DATA RATE, AND SETTLING TIME GAIN POWER-DOWN/RESET () ANALOG INPUT CHANNEL BIPOLAR CONFIGURATION DATA OUTPUT CODING REFERENCE BRIDGE POWER-DOWN SWITCH DIGITAL INTERFACE APPLICATIONS INFORMATION WEIGH SCALES PERFORMANCE IN A WEIGH SCALE SYSTEM EMI RECOMMENDATIONS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE