Datasheet AD8128 (Analog Devices) - 7

Data Sheet AD8128 1.5 1.8 O T z 1.6 1.0 00kH 1 1.4 M V O PEAK AND VGAIN SETTINGS ARE 0.5 R CONSISTENT WITH OPTIMIZED 1.2 ) V SETTINGS IN FIGURE 4 ) ( ISE F V T O m 1.0 U 0 ( TP E N Hz G 0.8 OU TA 1G L –0.5 O 0.6 V D E 0.4 VGAIN SETTINGS ARE CONSISTENT WITH OPTIMIZED SETTINGS IN FIGURE 4 –1.0 AT R G
09
0.2
-0 -006
TE
699 699
IN –1.5
05
0
05
0 20 40 60 80 100 120 140 160 180 200 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 TIME (ns) VPEAK (V)
Figure 10. Equalized Pulse Response for 100 M of Cable Figure 13. Integrated Voltage Noise vs. VPEAK
40 6 VPEAK = 0V V 30 GAIN = 0V 4 20 2 10 ) V) (V E (m G T 0 A 0 OU LT V O –10 V –2 –20 OUTPUT –4
8
–30 INPUT
05 00 -0 699- 699
–40
05
–6
05
–4 –3 –2 –1 0 1 2 3 4 0 50 100 150 200 250 300 350 400 450 500 VIN, CM (V) TIME (ns)
Figure 11. Output Voltage vs. Common-Mode Input Voltage Figure 14. Overdrive Recovery Time
100 20 10 VPEAK = 0.9V B) V 0 GAIN = 0.225V z) (d H N IO –10 VGAIN = 1V V/ CT VPEAK = 1V JE –20 ISE (n O RE –30 V E PEAK = 0V D E N V O G GAIN = 0V –40 V -M GAIN = 0V TA V L N PEAK = 0V O O –50 V MM O –60 C
07 04
–70
-0 -0 699 699
10
05
–80
05
0.1 1 10 100 1k 0.1 1 10 100 1k FREQUENCY (MHz) FREQUENCY (MHz)
Figure 12. Voltage Noise vs. Frequency Figure 15. Common-Mode Rejection vs. Frequency Rev. A | Page 7 of 12 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Maximum Power Dissipation ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUIT THEORY OF OPERATION INPUT COMMON-MODE VOLTAGE RANGE CONSIDERATIONS APPLICATIONS INFORMATION KVM APPLICATIONS DC CONTROL PINS CASCADED APPLICATIONS EXPOSED PAD (EP) LAYOUT AND POWER SUPPLY DECOUPLING CONSIDERATIONS EVALUATION BOARDS OUTLINE DIMENSIONS ORDERING GUIDE