AD8307
3.0
INT P
IN
= 3.0V
10MHz, INT = –96.52dBm
3
100MHz
2
2.5
2.0
1
INT P
IN
= 4.0V
10MHz, INT = –87.71dBm
ERROR (dB)
V
OUT
(V)
+INPUT
0
1.5
NO CONNECT ON INT
10MHz, INT = –82.90dBm
1.0
–1
–INPUT
0.5
01082-009
–2
01082-012
0
–80
–70
–60
–50
–40
–30
–20
–10
0
10
20
–3
–80
–60
–40
–20
0
20
INPUT LEVEL (dBm)
INPUT LEVEL (dBm)
Figure 9. V
OUT
vs. Input Level at 5 V Supply; Showing Intercept Adjustment
3.0
Figure 12. Log Conformance vs. Input Level at 100 MHz Showing
Response to Alternative Inputs
3
2.5
INT VOLTAGE
INT = 1.0V, INT = –86dBm
INT VOLTAGE
INT NO CONNECT, INT = –71dBm
2
500MHz
2.0
1
1.5
ERROR (dB)
V
OUT
(V)
0
1.0
–1
100MHz
0.5
01082-010
0
–80
–70
–60
–50
–40
–30
–20
–10
0
10
–3
–90
–70
–50
–30
–10
10
INPUT LEVEL (dBm)
INPUT LEVEL (dBm)
Figure 10. V
OUT
vs. Input Level at 3 V Supply Using AD820 as Buffer,
Gain = +2; Showing Intercept Adjustment
2.5
Figure 13. Log Conformance vs. Input at 100 MHz, 500 MHz;
Input Driven Differentially Using Transformer
3
2.0
2
500MHz
1
V
OUT
(V)
1.5
100MHz @ –40°C
ERROR (dB)
0
100MHz
–1
10MHz
1.0
100MHz @ +25°C
0.5
01082-011
0
–80
–60
–40
–20
0
20
–3
–70
–60
–50
–40
–30
–20
–10
0
10
20
INPUT LEVEL (dBm)
INPUT LEVEL (dBm)
Figure 11. V
OUT
vs. Input Level at Three Temperatures (−40°C, +25°C, +85°C)
Figure 14. Log Conformance vs. Input Level at 3 V Supply
Using AD820 as Buffer, Gain = +2
Rev. C | Page 7 of 24
01082-014
100MHz @ +85°C
–2
01082-013
INT VOLTAGE
INT = 2.0V, INT = –78dBm
–2
AD [ ANALOG DEVICES ]
