Datasheet AD8260 (Analog Devices) - 10
| Fabricante | Analog Devices |
| Descripción | High Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps |
| Páginas / Página | 32 / 10 — AD8260. Data Sheet. 0.20. CLOAD = 5pF. –10. 0.15. CLOAD = 10pF. CLOAD = … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 1.2 Mb |
| Idioma del documento | Inglés |
AD8260. Data Sheet. 0.20. CLOAD = 5pF. –10. 0.15. CLOAD = 10pF. CLOAD = 47pF. –20. 0.10. ) V ( E. –30. 0.05. Bm d. –40. T V. –50. –0.05. –60. O –0.10. –70. –0.15
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AD8260 Data Sheet 0.20 0 CLOAD = 5pF –10 0.15 CLOAD = 10pF CLOAD = 47pF –20 0.10 ) V ( E ) –30 G 0.05 A Bm d –40 LT ( O 0 UT T V P –50 U UT –0.05 TP O U –60 O –0.10 –70 –0.15 RLOAD = 50Ω –80 NONINVERTING –0.20
18
–90
5
–30 –20 –10 0 10 20 30 40 50 60 70 80
02-
0 2 4 6 8 10 12 14 16 18 20 22 24
012-
TIME (ns)
19
FREQUENCY (MHz)
19 07 07 Figure 15. Missing Tone Power Ratio for the High Current Driver Figure 18. Small-Signal Pulse Response of the High Current Driver for Various Values of Load Capacitance, CLOAD, and 50 Ω Load—See Figure 56
0.20 2.0 C C LOAD = 5pF LOAD = 5pF NONINVERTING 0.15 NONINVERTING 1.5 0.10 1.0 ) V) (V E E ( 0 .05 G 0.5 AG A T T L L O 0 0 V VO T UT P –0.05 PU –0.5 T UT U O O –0.10 –1.0 R R LOAD = 10Ω LOAD = 10Ω R R LOAD = 50Ω LOAD = 50Ω –0.15 R –1.5 R LOAD = 100Ω LOAD = 100Ω R R LOAD = 500Ω LOAD = 500Ω –0.20 –2.0
19 0
–30 –20 –10 0 10 20 30 40 50 60 70 80
16 2- 0
30 20 10 0 10 20 30 40 50 60 70 80
2- 19
TIME (ns)
19
TIME (ns)
07 07 Figure 16. Small-Signal Pulse Response of the High Current Driver for Various Figure 19. Large-Signal Pulse Response of the High Current Driver for Various Values of Load Resistance, RLOAD—See Figure 56 Values of Load Resistance, RLOAD—See Figure 56
0.20 2.0 CLOAD = 5pF CLOAD = 5pF 0.15 CLOAD = 10pF 1.5 CLOAD = 10pF CLOAD = 47pF CLOAD = 47pF 0.10 ) 1.0 ) V ( (V E E G 0.05 G 0.5 A A T LT L O 0 O 0 V T V T U U –0.05 TP –0.5 TP U O OU –0.10 –1.0 RLOAD = 500Ω NONINVERTING –0.15 –1.5 RLOAD = 500Ω NONINVERTING –0.20
0 17
–2.0 –30 –20 –10 0 10 20 30 40 50 60 70 80
0 -02 2-
–30 –20 –10 0 10 20 30 40 50 60 70 80 TIME (ns)
19 192 07
TIME (ns)
07 Figure 17. Small-Signal Pulse Response of the High Current Driver for Various Figure 20. Large-Signal Pulse Response of the High Current Driver for Various Values of Load Capacitance, CLOAD, and RLOAD = 500 Ω—See Figure 56 Values of Load Capacitance, CLOAD, and RLOAD = 500 Ω—See Figure 56 Rev. B | Page 10 of 32 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION OVERVIEW HIGH CURRENT DRIVER AMPLIFIER PRECAUTIONS TO BE OBSERVED DURING HALF-DUPLEX OPERATION VMID BUFFER PREAMPLIFIER PREAMPLIFIER NOISE DGA GAIN CONTROL OUTPUT STAGE ATTENUATOR SINGLE-SUPPLY OPERATION AND AC COUPLING POWER-UP/POWER-DOWN SEQUENCE LOGIC INTERFACES APPLICATIONS INFORMATION EVALUATION BOARD CONNECTING THE EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE
AD8260 Data Sheet 0.20 0 CLOAD = 5pF –10 0.15 CLOAD = 10pF CLOAD = 47pF –20 0.10 ) V ( E ) –30 G 0.05 A Bm d –40 LT ( O 0 UT T V P –50 U UT –0.05 TP O U –60 O –0.10 –70 –0.15 RLOAD = 50Ω –80 NONINVERTING –0.20
18
–90
5
–30 –20 –10 0 10 20 30 40 50 60 70 80
02-
0 2 4 6 8 10 12 14 16 18 20 22 24
012-
TIME (ns)
19
FREQUENCY (MHz)
19 07 07 Figure 15. Missing Tone Power Ratio for the High Current Driver Figure 18. Small-Signal Pulse Response of the High Current Driver for Various Values of Load Capacitance, CLOAD, and 50 Ω Load—See Figure 56
0.20 2.0 C C LOAD = 5pF LOAD = 5pF NONINVERTING 0.15 NONINVERTING 1.5 0.10 1.0 ) V) (V E E ( 0 .05 G 0.5 AG A T T L L O 0 0 V VO T UT P –0.05 PU –0.5 T UT U O O –0.10 –1.0 R R LOAD = 10Ω LOAD = 10Ω R R LOAD = 50Ω LOAD = 50Ω –0.15 R –1.5 R LOAD = 100Ω LOAD = 100Ω R R LOAD = 500Ω LOAD = 500Ω –0.20 –2.0
19 0
–30 –20 –10 0 10 20 30 40 50 60 70 80
16 2- 0
30 20 10 0 10 20 30 40 50 60 70 80
2- 19
TIME (ns)
19
TIME (ns)
07 07 Figure 16. Small-Signal Pulse Response of the High Current Driver for Various Figure 19. Large-Signal Pulse Response of the High Current Driver for Various Values of Load Resistance, RLOAD—See Figure 56 Values of Load Resistance, RLOAD—See Figure 56
0.20 2.0 CLOAD = 5pF CLOAD = 5pF 0.15 CLOAD = 10pF 1.5 CLOAD = 10pF CLOAD = 47pF CLOAD = 47pF 0.10 ) 1.0 ) V ( (V E E G 0.05 G 0.5 A A T LT L O 0 O 0 V T V T U U –0.05 TP –0.5 TP U O OU –0.10 –1.0 RLOAD = 500Ω NONINVERTING –0.15 –1.5 RLOAD = 500Ω NONINVERTING –0.20
0 17
–2.0 –30 –20 –10 0 10 20 30 40 50 60 70 80
0 -02 2-
–30 –20 –10 0 10 20 30 40 50 60 70 80 TIME (ns)
19 192 07
TIME (ns)
07 Figure 17. Small-Signal Pulse Response of the High Current Driver for Various Figure 20. Large-Signal Pulse Response of the High Current Driver for Various Values of Load Capacitance, CLOAD, and RLOAD = 500 Ω—See Figure 56 Values of Load Capacitance, CLOAD, and RLOAD = 500 Ω—See Figure 56 Rev. B | Page 10 of 32 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION OVERVIEW HIGH CURRENT DRIVER AMPLIFIER PRECAUTIONS TO BE OBSERVED DURING HALF-DUPLEX OPERATION VMID BUFFER PREAMPLIFIER PREAMPLIFIER NOISE DGA GAIN CONTROL OUTPUT STAGE ATTENUATOR SINGLE-SUPPLY OPERATION AND AC COUPLING POWER-UP/POWER-DOWN SEQUENCE LOGIC INTERFACES APPLICATIONS INFORMATION EVALUATION BOARD CONNECTING THE EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE