参数资料
| 型号： | LT6411CUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC ADC DRVR/GAIN AMP 16-QFN |
| 标准包装： | 2,500 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 差分 |
| 转换速率： | 3300 V/µs |
| -3db带宽： | 650MHz |
| 电流 - 输入偏压： | 17µA |
| 电压 - 输入偏移： | 3000µV |
| 电流 - 电源： | 8mA |
| 电流 - 输出 / 通道： | 105mA |
| 电压 - 电源，单路/双路(±)： | 4.5 V ~ 12 V，±2.25 V ~ 6 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（3x3） |
| 包装： | 带卷 (TR) |
LT6411
12
6411f
APPLICATIONS INFORMATION
Layout and Grounding
It is imperative that care is taken in PCB layout in order
to utilize the very high speed and very low crosstalk of
the LT6411. Separate power and ground planes are highly
recommended and trace lengths should be kept as short
as possible. If input or output traces must be run over a
distance of several centimeters, they should use a controlled
impedance with matching series and shunt resistances to
maintain signal delity.
Series termination resistors should be placed as close to
the output pins as possible to minimize output capacitance.
See the Typical Performance Characteristics section for
a plot of frequency response with various output capaci-
tors—only 12pF of parasitic output capacitance causes
6dB of peaking in the frequency response!
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 VCC
and VEE. 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,
additional 1F to 10F tantalums should be added on each
supply. The smallest value capacitors should be placed
closest to the LT6411 package.
If the undriven input pins are not connected directly to a low
impedance ground plane, they must be carefully bypassed
to maintain minimal impedance over frequency. Although
crosstalk will be very dependent on the board layout, a
recommended starting point for bypass capacitors would
be 470pF as close as possible to each input pin with one
4700pF capacitor in parallel.
To maintain the LT6411’s channel isolation, it is benecial
to shield parallel input and output traces using a ground
plane or power supply traces. Vias between topside
and backside metal may be required to maintain a low
inductance ground near the part where numerous traces
converge.
ESD Protection
The LT6411 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 sup-
ply, large currents may ow through these diodes. If the
current is kept below 10mA, no damage to the devices
will occur.
Single-Ended to Differential Converter
Because the gains of each channel of the LT6411 can
be congured independently, the LT6411 can be used to
provide a gain of +2 when amplifying differential signals
and when converting single-ended signals to differential.
With both channels connected to a single-ended input,
one channel congured with a gain of +1 and the other
congured with a gain of –1, the output will be a differential
version of the input with twice the peak-to-peak (differential)
amplitude. Figure 8 shows the proper connections and
Figure 9 displays the resulting performance when driv-
ing an LTC2249. This conguration can preserve signal
amplitude when converting single ended video signals to
differential signals when driving double terminated cables.
The 10k resistors in Figure 8 set the common mode volt-
age at the output.
Figure 8. Single-Ended to Differential Converter
with Gain of +2 and Common Mode Control
TYPICAL APPLICATIONS
5V
VCC
VEE
DGND
EN
LT6411
OUT1
370
370
370
370
OUT2
6411 F08
OUT+
OUT–
IN1+
IN1–
INPUT
1
F
IN2–
IN2+
10k
0.1
F
+
–
10k
5V
VCM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT6411IUD | 制造商:LINER 制造商全称:Linear Technology 功能描述:650MHz Differential ADC Driver/Dual Selectable Gain Amplifi er |
| LT6411IUD#PBF | 功能描述:IC ADC DRVR/GAIN AMP 16-QFN RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:350 V/µs 增益带宽积:180MHz -3db带宽:320MHz 电流 - 输入偏压:12.5µA 电压 - 输入偏移:800µV 电流 - 电源:15mA 电流 - 输出 / 通道:85mA 电压 - 电源，单路/双路(±):2.5 V ~ 12.6 V，±1.25 V ~ 6.3 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) |
| LT6411IUD#TRPBF | 功能描述:IC ADC DRVR/GAIN AMP 16-QFN RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| LT6412 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE |
| LT6413 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE |
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