Datasheet AD623 (Analog Devices) - 9

AD623 1600 30 1400 25 1200 20 1000 ) S IT 800 (nA S 15 UN A I BI 600 10 400 5 200 0 0 75 80 85 90 95 100 105 110 115 120 125 130
09 12 0
–60 –40 –20 0 20 40 60 80 100 120 140
0 8- 8-
CMRR (dB)
77
TEMPERATURE (°C)
77 00 00 Figure 9. Typical Distribution for CMRR (G = 1) Figure 12. IBIAS vs. Temperature
I) 1k 1k ) RT Hz / Hz V fA/ n ( ( Y Y IT IT NS NS DE DE L AL G = 1 R RA 100 CT 100 CT E E P P S S E E IS IS G= 10 NO NO E NT G= 100 AG T L G= 1000 O CURRE V 10 10 1 10 100 1k 10k 100k
10 13 0
1 10 100 1k
0 8- 8-
FREQUENCY (Hz)
77
FREQUENCY (Hz)
77 00 00 Figure 10. Voltage Noise Spectral Density vs. Frequency Figure 13. Current Noise Spectral Density vs. Frequency
22 20.0 21 19.5 20 19.0 19 18.5 ) ) (nA (nA 18.0 S 18 S A A I BI I BI 17 17.5 16 17.0 15 16.5 14 16.0 –4 –2 0 2 4
11 14 0
–4 –3 –2 –1 0 1 2
0 8- 8-
CMV (V)
77
CMV (V)
77 00 00 Figure 11. IBIAS vs. CMV, VS = ±5 V Figure 14. IBIAS vs. CMV, VS = ±2.5 V Rev. D | Page 9 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION CONNECTION DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS SINGLE SUPPLY DUAL SUPPLIES BOTH DUAL AND SINGLE SUPPLIES ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION BASIC CONNECTION GAIN SELECTION REFERENCE TERMINAL INPUT AND OUTPUT OFFSET VOLTAGE INPUT PROTECTION RF INTERFERENCE GROUNDING Ground Returns for Input Bias Currents Output Buffering Single-Supply Data Acquisition System Amplifying Signals with Low Common-Mode Voltage INPUT DIFFERENTIAL AND COMMON-MODE RANGE vs. SUPPLY AND GAIN OUTLINE DIMENSIONS ORDERING GUIDE