參數(shù)資料
型號: AD605BRZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 10/25頁
文件大?。?/td> 0K
描述: IC AMP VGA DUAL LN 40MA 16SOIC
標(biāo)準(zhǔn)包裝: 2,500
系列: X-AMP®
放大器類型: 可變增益
電路數(shù): 2
轉(zhuǎn)換速率: 170 V/µs
-3db帶寬: 40MHz
電流 - 輸入偏壓: 400nA
電流 - 電源: 18mA
電流 - 輸出 / 通道: 40mA
電壓 - 電源,單路/雙路(±): 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 帶卷 (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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