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參數(shù)資料
| 型號： | LT6554CGN#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 12/12頁 |
| 文件大小： | 0K |
| 描述： | IC BUFFER VID TRPL 650MHZ 16SSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 應(yīng)用： | 緩沖器 |
| 電路數(shù)： | 3 |
| -3db帶寬： | 650MHz |
| 轉(zhuǎn)換速率： | 2500 V/µs |
| 電流 - 電源： | 8mA |
| 電流 - 輸出 / 通道： | 70mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 12 V，±2.25 V ~ 6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
LT6554
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6554fa
APPLICATIO S I FOR ATIO
WU
UU
While the AGND pins on the LT6554 are not connected to
the amplifier circuitry, tying them to ground or another
“quiet” node significantly increases channel isolation and
is always recommended. The AGND pins do have ESD
protection and therefore should not be connected to
potentials outside the power supply range.
Low ESL/ESR bypass capacitors should be placed as close
to the positive and negative supply pins as possible. One
4700pF ceramic capacitor is recommended for both V+
and V–. Additional 470pF ceramic capacitors with minimal
trace length on each supply pin will further improve AC and
transient response as well as channel isolation. For high
current drive and large-signal transient applications, addi-
tional 1F to 10F tantalums should be added on each
supply. The smallest value capacitors should be placed
closest to the package.
To maintain the LT6554’s channel isolation, it is beneficial
to shield parallel input and output traces using a ground
plane or power supply traces. Vias between topside and
backside metal are recommended to maintain a low
inductance ground, especially between closely spaced
signal traces.
Single Supply Operation
Figure 3 illustrates how to use the LT6554 with a single
supply ranging from 4.5V to 12V. Since the output range
is comparable to the input range, the DC bias point at the
input can be set anywhere between the supplies that will
prevent the AC-coupled signal from running into the
output range limits. As shown, the DC input level is mid-
supply.
The only additional power dissipation in the single supply
configuration is through the resistor bias string at the
input and through any load resistance at the output. In
many cases, the output can be used to directly drive other
single supply devices without additional coupling and
without any resistive load.
ESD Protection
The LT6554 has reverse-biased ESD protection diodes on
all pins. If any pins are forced a diode drop above the
positive supply or a diode drop below the negative supply,
large currents may flow through these diodes. If the
current is kept below 10mA, no damage to the device will
occur.
Figure 1. Response vs Output Trace Length
Figure 2. Response vs Series Output Resistance
Figure 3. Single Supply Configuration, One Channel Shown
FREQUENCY (MHz)
0.1
AMPLITUDE
(dB)
6
4
2
0
–2
–4
–6
1
10
100
1000
6554 F01
4cm TRACE
0.2cm TRACE
2cm TRACE
VS = ±5V
VOUT = 200mVP-P
RL = 1k
TA = 25°C
FREQUENCY (MHz)
0.1
AMPLITUDE
(dB)
6
4
2
0
–2
–4
–6
1
10
100
1000
6554 F02
4cm TRACE
RS, OUT = 10
VS = ±5V
VOUT = 200mVP-P
RL = 1k
TA = 25°C
1/3
LT6554
5k
AGND
IN
VIN
22F
OUT
V+
V–
4.5V TO 12V
6554 F03
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| LT6554IGN | 功能描述:IC BUFFER VID TRPL 650MHZ 16SSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT6554IGN#PBF | 功能描述:IC BUFFER VID TRPL 650MHZ 16SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT6554IGN#TR | 功能描述:IC BUFFER VID TRPL 650MHZ 16SSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT6554IGN#TRPBF | 功能描述:IC BUFFER VID TRPL 650MHZ 16SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT6555 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:650MHz Gain of 2 Triple 2:1Video Multiplexer |
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