参数资料
型号: AD605BRZ-RL
厂商: Analog Devices Inc
文件页数: 10/25页
文件大小: 0K
描述: IC AMP VGA DUAL LN 40MA 16SOIC
标准包装: 2,500
系列: X-AMP®
放大器类型: 可变增益
电路数: 2
转换速率: 170 V/µs
-3db带宽: 40MHz
电流 - 输入偏压: 400nA
电流 - 电源: 18mA
电流 - 输出 / 通道: 40mA
电压 - 电源,单路/双路(±): 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 带卷 (TR)
AD605
Rev. F | Page 17 of 24
Figure 40 shows the gain vs. VGN for the circuit in Figure 39
at 1 MHz and the lowest gain range (14 dB to +34.4 dB). Note
that the gain scaling is 40 dB/V, double the 20 dB/V of an
individual DSX; this is the result of the parallel connection of
the gain control inputs, VGN1 and VGN2. The gain can also be
sequentially increased by first increasing the gain of Channel 1
and then Channel 2. In this case, VGN1 and VGN2 are driven
from separate voltage sources, for instance two separate DACs.
Figure 41 shows the gain error of Figure 39.
80
–40
f = 1MHz
ACTUAL
0
70
20
–10
–20
–30
50
30
60
40
10
00
54
1-
0
41
VGN (V)
GA
IN
(
d
B
)
THEORETICAL
0.1
0.5
0.9
1.3
1.7
2.1
2.5
2.9
Figure 40. Gain vs. VGN for the Circuit in Figure 39
VGN (V)
G
AI
N
E
RRO
R
(
d
B
)
4
3
–4
0
–1
–2
–3
2
1
f = 1MHz
00
54
1-
0
42
0.2
0.7
1.2
1.7
2.2
2.7
Figure 41. Gain Error vs. VGN for the Circuit in Figure 39
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