Datasheet AD8505, AD8506, AD8508 (Analog Devices) - 10

AD8505/AD8506/AD8508
TA = 25°C, unless otherwise noted.
100 100 VSY = 1.8V VSY = 5V 90 90 80 80 B) B) d d 70 70 RR ( RR ( CM CM 60 60 50 50 40 40 10 100 1k 10k 100k 1M
29 32 0
10 100 1k 10k 100k 1M
0 0- 0-
FREQUENCY (Hz)
90
FREQUENCY (Hz)
90 06 06 Figure 31. CMRR vs. Frequency Figure 34. CMRR vs. Frequency
100 100 VSY = 1.8V VSY = 5V 90 90 80 80 70 70 60 60 B) B) d d R ( 50 R ( 50 R R S S P 40 P 40 30 30 20 PSRR+ 20 PSRR+ 10 10 PSRR– PSRR– 0 0
3 6
10 100 1k 10k 100k 1M
02
10 100 1k 10k 100k 1M
02 0- 0- 90
FREQUENCY (Hz)
90
FREQUENCY (Hz)
06 06 Figure 32. PSRR vs. Frequency Figure 35. PSRR vs. Frequency
80 80 VSY = 1.8V VSY = 5V 70 RL = 100kΩ 70 RL = 100kΩ 60 60 ) ) % 50 % 50 OOT ( OOT ( H 40 H 40 S S R R E E 30 30 OV OV –OVERSHOOT –OVERSHOOT 20 20 +OVERSHOOT +OVERSHOOT 10 10 0
7
0
0
10 100 600
02 03 0-
10 100 600
0- 90 90
LOAD CAPACITANCE (pF)
06
LOAD CAPACITANCE (pF)
06 Figure 33. Small-Signal Overshoot vs. Load Capacitance Figure 36. Small-Signal Overshoot vs. Load Capacitance Rev. E | Page 10 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS—1.8 V OPERATION ELECTRICAL CHARACTERISTICS—5 V OPERATION ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION PULSE OXIMETER CURRENT SOURCE FOUR-POLE, LOW-PASS BUTTERWORTH FILTER FOR GLUCOSE MONITOR OUTLINE DIMENSIONS ORDERING GUIDE