Datasheet

AD640
REV. C–6–
INPUT LEVEL – dBm
–2.5
–2.0
0.5
–40
–0.5
0
–1.5
–1.0
OUTPUT CURRENT – mA
–50 –30 –20 –10 0
30MHz
60MHz
90MHz
120MHz
AD640 6V
S
= 5 VOLTS
TEMPERATURE = +258C
Figure 10. AC Response at 30 MHz, 60 MHz, 90 MHz and
120 MHz, vs. dBm Input (Sinusoidal Input)
FREQUENCY – MHz
1.0
DC 30
SLOPE CURRENT – mA
0.95
0.90
0.85
0.80
60 90 120 150
Figure 11. Slope Current, I
Y
, vs. Input Frequency
Figure 12. Baseband Pulse Response of Single AD640,
Inputs of 1 mV, 10 mV and 100 mV
+258C
+1258C
–558C
+1258C
–558C
+258C
+1258C
–558C
–558C
INPUT LEVEL – dBm
–2.5
0
–50 0
OUTPUT CURRENT – mA
–2.0
–1.5
–1.0
–5
0.5
–40 –30 –20 –10
+1
0
–1
–2
+1258C
+258C
AD640
FREQUENCY = 60MHz
ERROR IN dB
Figure 13. Logarithmic Response and Linearity at 60 MHz,
T
A
for T
A
= –55 ⴗ C, +25 ⴗ C, +125 ⴗ C
INPUT FREQUENCY – MHz
INTERCEPT LEVEL – dBm
90
80
0 12010 20 100 110
89
87
86
85
84
88
30 40 50 60 70 80 90
83
82
81
Figure 14. Intercept Level (dBm) vs. Frequency
(Cascaded AD640s – Sinusoidal Input)
10
0%
5µs
5µs
20mV
20mV
100
90
Figure 15. Baseband Pulse Response of Cascaded
AD640s, Inputs of 0.2 mV, 2 mV, 20 mV and 200 mV
–Typical AC Performance Characteristics