Datasheet OP281, OP481 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Ultralow Power, Rail-to-Rail Output Operational Amplifiers |
| Pages / Page | 20 / 9 — OP281/OP481. VS = ±5V. TA = 25°C. L = 100kΩ TO GROUND. ) B. VS = +5V. ( … |
| Revision | D |
| File Format / Size | PDF / 400 Kb |
| Document Language | English |
OP281/OP481. VS = ±5V. TA = 25°C. L = 100kΩ TO GROUND. ) B. VS = +5V. ( IN. rees). S = +3V. RR (. OOP. 135. E OP. 180. E SH. S A. –10. 225. –20. 270. –30. 100. 10k
Model Line for this Datasheet
Text Version of Document
OP281/OP481 70 90 VS = ±5V TA = 25°C VS = ±5V 60 TA = 25°C R 80 L = 100kΩ TO GROUND 50 70 ) B 0 d 40 60 VS = +5V ( IN 30 45 50 B) V GA rees) d S = +3V 20 90 eg 40 D RR ( OOP ( -L 10 135 T CM 30 N IF E OP 0 180 E SH 20 S A –10 225 10 PH –20 270 0 –30
7
–10 100 1k 10k 100k 1M
01
1k 10M
20
10k 100k 1M
1- 0 1-
FREQUENCY (Hz)
29
FREQUENCY (Hz)
29 00 00 Figure 17. Open-Loop Gain and Phase vs. Frequency Figure 20. CMRR vs. Frequency
60 160 VS = 5V VS = ±5V, +5V, +3V, +2.7V 50 TA = 25°C TA = 25°C R 140 L = ∞ RL = ∞ 40 120 ) B d 30 ( 100 IN 20 80 GA B) d 10 ( 60 OOP RR -L S D 0 P 40 E OS –10 L 20 C –20 0 –30 –20 –40 –40 10 100 1k 10k 100k 1M
18 21 0
10 100 1k 10k 100k 1M
0 1- 1-
FREQUENCY (Hz)
29
FREQUENCY (Hz)
29 00 00 Figure 18. Closed-Loop Gain vs. Frequency Figure 21. PSRR vs. Frequency
50 VS = 5V VS = +5V TA = 25°C 45 VIN = ±50mV MARKER @ 67nV/√Hz ) RL = 100kΩ 40 T (% A = 25°C –OS 35 +OS OOT ) H IV S R 30 E z/D /√H OV 25 V L A 20 (50n IGN S L 15 L A M 10 S 5 0 0 2 4 6 8 10
9 1 2 0
10 100 1000
1- -02 29
FREQUENCY (kHz) LOAD CAPACITANCE (pF)
291 00 00 Figure 19. Voltage Noise Density vs. Frequency Figure 22. Small-Signal Overshoot vs. Load Capacitance Rev. D | Page 9 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS THEORY OF OPERATION INPUT OVERVOLTAGE PROTECTION INPUT OFFSET VOLTAGE INPUT COMMON-MODE VOLTAGE RANGE CAPACITIVE LOADING MICROPOWER REFERENCE VOLTAGE GENERATOR WINDOW COMPARATOR LOW-SIDE CURRENT MONITOR LOW VOLTAGE HALF-WAVE AND FULL-WAVE RECTIFIERS BATTERY-POWERED TELEPHONE HEADSET AMPLIFIER OUTLINE DIMENSIONS ORDERING GUIDE
7
–10 100 1k 10k 100k 1M
01
1k 10M
20
10k 100k 1M
1- 0 1-
FREQUENCY (Hz)
29
FREQUENCY (Hz)
29 00 00 Figure 17. Open-Loop Gain and Phase vs. Frequency Figure 20. CMRR vs. Frequency
60 160 VS = 5V VS = ±5V, +5V, +3V, +2.7V 50 TA = 25°C TA = 25°C R 140 L = ∞ RL = ∞ 40 120 ) B d 30 ( 100 IN 20 80 GA B) d 10 ( 60 OOP RR -L S D 0 P 40 E OS –10 L 20 C –20 0 –30 –20 –40 –40 10 100 1k 10k 100k 1M
18 21 0
10 100 1k 10k 100k 1M
0 1- 1-
FREQUENCY (Hz)
29
FREQUENCY (Hz)
29 00 00 Figure 18. Closed-Loop Gain vs. Frequency Figure 21. PSRR vs. Frequency
50 VS = 5V VS = +5V TA = 25°C 45 VIN = ±50mV MARKER @ 67nV/√Hz ) RL = 100kΩ 40 T (% A = 25°C –OS 35 +OS OOT ) H IV S R 30 E z/D /√H OV 25 V L A 20 (50n IGN S L 15 L A M 10 S 5 0 0 2 4 6 8 10
9 1 2 0
10 100 1000
1- -02 29
FREQUENCY (kHz) LOAD CAPACITANCE (pF)
291 00 00 Figure 19. Voltage Noise Density vs. Frequency Figure 22. Small-Signal Overshoot vs. Load Capacitance Rev. D | Page 9 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS THEORY OF OPERATION INPUT OVERVOLTAGE PROTECTION INPUT OFFSET VOLTAGE INPUT COMMON-MODE VOLTAGE RANGE CAPACITIVE LOADING MICROPOWER REFERENCE VOLTAGE GENERATOR WINDOW COMPARATOR LOW-SIDE CURRENT MONITOR LOW VOLTAGE HALF-WAVE AND FULL-WAVE RECTIFIERS BATTERY-POWERED TELEPHONE HEADSET AMPLIFIER OUTLINE DIMENSIONS ORDERING GUIDE
