參數(shù)資料
型號: AD810ARZ
廠商: Analog Devices Inc
文件頁數(shù): 6/16頁
文件大小: 0K
描述: IC CURR-FDBK AMP VIDEO LP 8-SOIC
標(biāo)準(zhǔn)包裝: 98
應(yīng)用: 電流反饋
電路數(shù): 1
-3db帶寬: 80MHz
轉(zhuǎn)換速率: 1000 V/µs
電流 - 電源: 6.8mA
電流 - 輸出 / 通道: 60mA
電壓 - 電源,單路/雙路(±): 5 V ~ 36 V,±2.5 V ~ 18 V
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SO
包裝: 管件
產(chǎn)品目錄頁面: 768 (CN2011-ZH PDF)
AD810
REV. A
–14–
2:1 VIDEO MULTIPLEXER
The outputs of two AD810s can be wired together to form a
2:1 mux without degrading the flatness of the gain response.
Figure 54 shows a recommended configuration which results in
–0.1 dB bandwidth of 20 MHz and OFF channel isolation of
77 dB at 10 MHz on
±5 V supplies. The time to switch between
channels is about 0.75
s when the disable pins are driven by
open drain output logic. Adding pull-up resistors to the logic
outputs or using complementary output logic (such as the
74HC04) reduces the switching time to about 180 ns. The
switching time is only slightly affected by the signal level.
10
90
100
0%
5V
500mV
500nS
Figure 52. Channel Switching Time for the 2:1 Mux
–40
–90
1
10
100
–70
–80
–60
–50
FEEDTHROUGH
dB
FREQUENCY – MHz
Figure 53. 2:1 Mux OFF Channel Feedthrough vs.
Frequency
AD810
7
3
2
3
0.1F
+5V
6
VINA
750
–5V
4
0.1F
8
VSW
VOUT
75
75
CABLE
74HC04
AD810
7
3
2
3
0.1F
+5V
6
VINB
–5V
4
0.1F
8
75
750
750
750
75
75
Figure 54. A Fast Switching 2:1 Video Mux
–0.5
–3.0
1
10
100
–1.0
–1.5
–2.0
–2.5
0
0.5
0
–45
–90
–135
–180
–225
–270
PHASE
GAIN
CLOSED-LOOP
GAIN
dB
PHASE
SHIFT
Degrees
FREQUENCY – MHz
VS = ±5V
Figure 55. 2:1 Mux ON Channel Gain and Phase vs.
Frequency
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