参数资料
| 型号： | LT6411CUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16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
11
6411f
the output signals can be AC coupled and DC biased in a
manner similar to what is shown at the inputs in Figure
3. A simpler alternative when using an ADC such as the
LTC2249 is to use the ADC’s VCM pin to set the optimal
common mode voltage as shown in Figure 5.
If unity common mode gain and difference mode response
to DC is desired, there is another conguration available.
Figure 6 shows the LT6411 connected to provide a differ-
ential signal gain of +3 with unity common mode gain. For
differential signal gain between unity and +3, three resistors
can be added to provide attenuation and set the differential
input impedance of the stage as illustrated in Figure 7. The
general expression for the differential gain is:
A
k
VDIFF
()
=+
+
1
2
Scaling factor ‘k’ is the multiple between the two equal-
value series input resistors and the resistor connected
between the two positive inputs. The correct value of R for
the external resistors can be computed from the desired
differential input impedance, ZIN, as a function of k and
the 370
Ω internal gain setting resistors, as described in
the equation:
R
Z
kZ
k
IN
=
+
()
+
()
–
370
2
1
In Figure 7 k = 2 and R = 13.7
Ω, setting the differential
gain to +2 and the differential input impedance to ap-
proximately 50
Ω.
APPLICATIONS INFORMATION
+
–
+
–
+V
–V
CLARGE
10k
LT6411
IN+
IN–
OV
6411 F05
CLARGE
10k
2.2
F
LTC2249
VCM
+
–
+
–
+V
LT6411
IN+
IN–
VCM
OUT+
OUT–
VCM
6411 F06
Figure 6. LT6411 Congured for a Differential Gain of +3
and Unity Common Mode Gain with Response to DC
Figure 5. Level Shifting the Output Common Mode Voltage of the LT6411 Using the VCM Pin of an LTC2249
+
–
+
–
+V
LT6411
IN+
R = 13.7
R = 13.7
IN–
k R = 27.4
VCM
OUT+
OUT–
VCM
6411 F07
Figure 7. LT6411 Congured with a Differential Input Impedance
of 50
Ω, a Differential Gain of +2 and Unity Common Mode Gain
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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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