Datasheet

Data Sheet AD8370
Rev. B | Page 7 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
V
S
= 5 V, Z
S
= 200 Ω, Z
L
= 100 Ω, T = 25°C, unless otherwise noted.
0
10
20
30
40
50
60
70
–30
–20
–10
0
10
20
30
40
VOLTAGE GAIN (dB)
VOLTAGE GAIN (V/V)
0 10 20 30 40 60 10050 70 80 90 110 120 130
GAIN CODE
03692-004
CODE = LAST 7 BITS OF GAIN CODE
(NO MSB)
HIGH GAIN MODE
HIGH GAIN MODE
LOW GAIN MODE
LOW GAIN MODE
∆ GAIN
∆ CODE
≅ 0.409
∆ GAIN
∆ CODE
≅ 0.059
Figure 4. Gain vs. Gain Code at 70 MHz
5
10
15
20
25
30
35
40
–5
0
5
10
15
20
25
30
0 20 40 60 80 100 120 140
03692-068
HIGH GAIN MODE
LOW GAIN MODE
SHADING INDICATES ±3σ FROM THE
MEAN. DATA BASED ON 30 PARTS
FROM TWO BATCH LOTS.
GAIN CODE
OUTPUT IP3 (dBm)
OUTPUT IP3 (dBV rms)
Figure 5. Output Third-Order Intercept vs. Gain Code at 70 MHz
5
10
15
20
25
30
NOISE FIGURE (dB)
35
40
45
0 20 40 60 80 100 120 140
GAIN CODE
03692-006
HIGH GAIN MODE
380MHz
380MHz
70MHz
70MHz
LOW GAIN MODE
Figure 6. Noise Figure vs. Gain Code at 70 MHz
–10
–5
0
5
10
15
20
25
30
35
40
VOLTAGE GAIN (dB)
FREQUENCY (MHz)
10 100 1000
03692-007
HG77
HG127
LG90
LG9
LG18
LG127
HG102
HG18
LG36
HG51
HG25
HG9
HG3
HIGH GAIN CODES SHOWN WITH DASHED LINES
LOW GAIN CODES SHOWN WITH SOLID LINES
Figure 7. Frequency Response vs. Gain Code
OUTPUT IP3 (dBm) +25°C
FREQUENCY (MHz)
OUTPUT IP3 (dBm) –40°C, +85°C
10
15
20
25
30
35
40
20
25
30
35
40
45
50
20015050 1000 250 300 350 400
03692-069
+25°C
UNIT CONVERSION NOTE FOR
100Ω LOAD: dBVrms = dBm–10dB
+85°C
–40°C
SHADING INDICATES ±3σ FROM THE
MEAN. DATA BASED ON 30 PARTS
FROM TWO BATCH LOTS.
Figure 8. Output Third-Order Intercept vs. Frequency at Maximum Gain
0
5
10
15
20
25
NOISE FIGURE (dB)
200 3000 100 400 500 600
FREQUENCY (MHz)
03692-009
HG18
HG127
LG127
Figure 9. Noise Figure vs. Frequency at Various Gains