AD8331/AD8332/AD8334
Rev. G | Page 12 of 56
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, VS = 5 V, RL = 500 Ω, RS = RIN = 50 Ω, RIZ = 280 Ω, CSH = 22 pF, f = 10 MHz, RCLMP = ∞, CL = 1 pF, VCM pin floating,
4.5 dB to +43.5 dB gain (HILO = LO), and differential output voltage, unless otherwise specified.
60
50
40
30
20
10
0
–10
0
0.2
0.4
0.6
0.8
1.0
1.1
GA
IN
(
d
B
)
VGAIN (V)
03
19
9-
00
7
HILO = HI
HILO = LO
ASCENDING GAIN MODE
DESCENDING GAIN MODE
(WHERE AVAILABLE)
Figure 7. Gain vs. VGAIN and MODE (MODE Available on RU Package)
2.0
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
0
0.2
0.4
0.6
0.8
1.0
1.1
G
AI
N
E
R
RO
R
(
d
B)
VGAIN (V)
03
19
9-
00
8
+25°C
–40°C
+85°C
Figure 8. Absolute Gain Error vs. VGAIN at Three Temperatures
2.0
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
0
0.2
0.4
0.6
0.8
1.0
1.1
G
AI
N
E
R
RO
R
(
d
B)
VGAIN (V)
03
19
9-
00
9
1MHz
30MHz
10MHz
70MHz
50MHz
Figure 9. Absolute Gain Error vs. VGAIN at Various Frequencies
50
40
30
20
10
0
–0.5 –0.4 –0.3 –0.2 –0.1
0
0.1
0.2
0.3
0.4
0.5
P
E
RCE
NT
O
F
UN
IT
S
(
%
)
GAIN ERROR (dB)
03
19
9-
0
10
SAMPLE SIZE = 80 UNITS
VGAIN = 0.5V
Figure 10. Gain Error Histogram
03
19
9-
0
11
25
VGAIN = 0.7V
0
5
15
20
25
10
0
5
10
20
15
–0
.1
7
–0
.1
5
–0
.1
3
–0
.1
1
–0
.0
9
–0
.0
7
–0
.0
5
–0
.0
3
–0
.0
1
0.
01
0.
03
0.
05
0.
07
0.
09
0.
11
0.
13
0.
15
0.
17
0.
19
0.
21
P
E
RCE
NT
O
F
UNI
T
S
(
%
)
CHANNEL TO CHANNEL GAIN MATCH (dB)
SAMPLE SIZE = 50 UNITS
VGAIN = 0.2V
Figure 11. Gain Match Histogram for VGAIN = 0.2 V and 0.7 V
50
40
30
20
10
0
–20
–10
100k
1M
10M
100M
500M
GA
IN
(
d
B
)
FREQUENCY (Hz)
03
19
9-
01
2
VGAIN = 1V
VGAIN = 0.8V
VGAIN = 0.6V
VGAIN = 0.4V
VGAIN = 0.2V
VGAIN = 0V
Figure 12. Frequency Response for Various Values of VGAIN