參數(shù)資料
型號(hào)： LT6411IUD#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 5/16頁(yè)
文件大?。?/td> 0K
描述： IC ADC DRVR/GAIN AMP 16-QFN
標(biāo)準(zhǔn)包裝： 121
放大器類型： 通用
電路數(shù)： 2
輸出類型： 差分
轉(zhuǎn)換速率： 3300 V/µs
-3db帶寬： 650MHz
電流 - 輸入偏壓： 17µA
電壓 - 輸入偏移： 3000µV
電流 - 電源： 8mA
電流 - 輸出 / 通道： 105mA
電壓 - 電源，單路/雙路(±)： 4.5 V ~ 12 V，±2.25 V ~ 6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 16-QFN-EP（3x3）
包裝： 管件
LT6411
13
6411f
TYPICAL APPLICATIONS
Figure 9. 2-Tone Response of the LT6411 Congured with
Single-Ended Inputs Driving the LTC2249 at 29.5MHz, 30.5MHz
Twisted-Pair Line Driver
The LT6411 is ideal when used for driving inexpensive
unshielded twisted-pair wires as often found in telephone
or communications infrastructure. The input can be com-
posite video, or if three parts are used, RGB or similar and
can be either single ended or differential. The LT6411 has
excellent performance with all formats.
Double termination of the video cable will enhance delity
and isolate the LT6411 from capacitive loads. Although
most twisted-pair cables have a characteristic impedance
Figure 10. Twisted-Pair Driver
FREQUENCY (MHz)
0
–140
AMPLITUDE
(dBFS)
–120
–100
–80
0
–40
5
15
20
40
6411 F09
–20
–60
–130
–110
–90
–10
–50
–30
–70
10
25
30
35
32768 POINT FFT
TONE 1 AT 29.5MHz, –7dBFS
TONE 2 AT 30.5MHz, –7dBFS
IM3 = –90dBc
13
50
100
50
5V
–5V
6,9,10
1,2,3,7
6411 F10
RECEIVER
5
LT6411
AV = 2
IN+
IN–
+
–
14
15
16
11,12
of 100
Ω, the cables can be terminated with a smaller
series resistance or a larger shunt resistance in order to
compensate for attenuation. A typical circuit for a twisted-
pair driver is shown in Figure 10.
Single Supply Differential ADC Driver
The LT6411 is well suited for driving differential analog
to digital converters. The low output impedance of the
LT6411 is capable of driving a variety of lters as well as
interfacing with the typically high impedance inputs of
ADCs. In addition, the LT6411’s excellent distortion allows
the part to perform with an SFDR below the limits of many
high speed ADCs. The DC1057 demo board, shown sche-
matically in Figure 11 and physically in Figure 12, allows
implementation and testing of the LT6411 with a variety
of different Linear Technology high speed ADCs.
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