Datasheet AD8351 (Analog Devices) - 7

Data Sheet AD8351 TYPICAL PERFORMANCE CHARACTERISTICS
VS = 5 V, T = 25°C, unless otherwise noted.
20 30 RG = 20Ω RG = 10Ω 25 15 RG = 80Ω 20 ) 10 ) B B d d RG = 50Ω ( ( IN 15 R IN G = 200Ω GA 5 GA 10 RG = 200Ω 0 5 –5 0 1 10 100 1000 10000
003
1 10 100 1000 10000
006
FREQUENCY (MHz) FREQUENCY (MHz)
03145- 03145- Figure 4. Gain vs. Frequency for a 150 Ω Differential Load Figure 7. Gain vs. Frequency for a 1 kΩ Differential Load (AV = 6 dB, 12 dB, and 18 dB) (AV = 10 dB, 18 dB, and 26 dB)
35 1.0 0.9 30 0.8 0.7 0.6 25 0.5 ) 0.4 20 B 0.3 ) 0.2 B 15 d ESS (d 0.1 RL = 150Ω ( N 0 IN T 10 R A L = OPEN L –0.1 R GA L = 1kΩ F –0.2 IN 5 A –0.3 R G –0.4 L = 150Ω –0.5 0 –0.6 –0.7 –5 RL = 1kΩ –0.8 –0.9 –10 –1.0
4 7
10 100 1k 10k
00
1 10 100 1000
00 5- 45-
RG (Ω) FREQUENCY (MHz)
0314 031 Figure 5. Gain vs. Gain Resistor, RG (f = 100 MHz, Figure 8. Gain Flatness vs. Frequency RL = 150 Ω, 1 kΩ, and Open) (RL = 150 Ω and 1 kΩ, AV = 10 dB)
10.75 10.50 0 –10 10.50 10.25 –20 ) ) B 10.25 10.00 –30 (d (dB B) d kΩ ( 50Ω N –40 = 1 10.00 9.75 IO L = 1 L AT –50 ; R ; R L IN O IN 9.75 9.50 IS GA –60 GA –70 9.50 9.25 –80 9.25 9.00 –90
5 8
–50 –30 –10 10 30 50 70 90 110
00
0 100 200 300 400 500 600 700 800 900 1000
00 45- 45-
TEMPERATURE (°C) FREQUENCY (MHz)
031 031 Figure 6. Gain vs. Temperature at 100 MHz (AV = 10 dB Figure 9. Isolation vs. Frequency (AV = 10 dB) Rev. D | Page 7 of 19 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BASIC CONCEPTS GAIN ADJUSTMENT COMMON-MODE ADJUSTMENT INPUT AND OUTPUT MATCHING SINGLE-ENDED-TO-DIFFERENTIAL OPERATION ADC DRIVING ANALOG MULTIPLEXING I/O CAPACITIVE LOADING TRANSMISSION LINE EFFECTS CHARACTERIZATION SETUP EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE