Analog Devices AD604 Manuel D’Utilisation
AD604
Rev. E | Page 7 of 32
VGN (V)
–10
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, G (preamplifier) = 14 dB, VREF = 2.5 V (20 dB/V scaling), f = 1 MHz, R
L
= 500 Ω, C
L
= 5 pF, T
A
= 25°C, and
V
SS
= ±5 V.
GA
IN
S
C
A
L
IN
G (
d
B
/V
)
40.0
37.5
32.5
30.0
25.0
20.0
22.5
27.5
35.0
50
20
40
30
10
0
G
A
IN
(
d
B
)
0.1
0.5
0.9
1.3
1.7
2.1
2.5
2.9
3 CURVES
–40°C,
+25°C,
+85°C
0
054
0-
0
03
Figure 3. Gain vs. VGN for Three Temperatures
VGN (V)
60
50
40
30
20
10
0
–10
GA
IN
(
d
B
)
–20
0.1
0.5
0.9
1.3
1.7
2.1
2.5
2.9
G (PREAMP) = +20dB
(+6dB TO +54dB)
DSX ONLY
(–14dB TO +34dB)
G (PREAMP) = +14dB
(0dB TO +48dB)
00
540
-00
4
Figure 4. Gain vs. VGN for Different Preamplifier Gains
VGN (V)
–10
50
20
40
30
10
0
GA
IN
(
d
B
)
0.1
0.5
0.9
1.3
1.7
2.1
2.5
2.9
ACTUAL
ACTUAL
20dB/V
VREF = 2.5V
30dB/V
VREF = 1.67V
00
54
0-
00
5
Figure 5. Gain vs. VGN for Different Gain Scalings
ACTUAL
VREF (V)
THEORETICAL
1.25
1.50
1.75
2.00
2.25
2.50
00
54
0-
00
6
VGN (V)
G
AI
N E
RRO
R (
d
B)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
Figure 6. Gain Scaling vs. VREF
0.2
0.7
1.2
1.7
2.2
2.7
+25°C
–40°C
+85°C
00
54
0-
00
7
Figure 7. Gain Error vs. VGN
VGN (V)
G
AI
N E
RRO
R (
d
B)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0.2
0.7
1.2
1.7
2.2
2.7
FREQ = 5MHz
FREQ = 1MHz
FREQ = 10MHz
00
54
0-
00
8
Figure 8. Gain Error vs. VGN at Different Frequencies
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