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| 型号： | ADA4311-1ARHZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC LINE DRIVER DUAL HS 10-MSOP |
| 标准包装： | 1 |
| 放大器类型： | 电流反馈 |
| 电路数： | 2 |
| 转换速率： | 1050 V/µs |
| -3db带宽： | 310MHz |
| 电流 - 输入偏压： | 4.5µA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 11.8mA |
| 电压 - 电源，单路/双路(±)： | 6 V ~ 12 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 768 (CN2011-ZH PDF) |
| 其它名称： | ADA4311-1ARHZ-R7DKR |
ADA4311-1
Rev. 0 | Page 11 of 16
APPLICATION INFORMATION
FEEDBACK RESISTOR SELECTION
The feedback resistor has a direct impact on the closed-loop
bandwidth and stability of the current feedback op amp.
Reducing the resistance below the recommended value can
make the amplifier response peak and even become unstable.
Increasing the size of the feedback resistor beyond the recom-
mended value reduces the closed-loop bandwidth. Table 5
provides a convenient reference for quickly determining the
feedback and gain resistor values, and the corresponding
bandwidth, for common gain configurations. The recommended
feedback resistor value for the ADA4311-1 is 499 Ω.
Table 5. Recommended Values and Frequency Performance1
Gain
RF (Ω)
RG (Ω)
3 dB SS BW (MHz)
+5
499
124
310
+5
1 k
250
220
+10
499
55.4
175
+20
499
26.1
84
1 Conditions: VS = ±12 V, TA = 25°C, RL = 50 Ω, PD1, PD0 = 0, 0.
POWER CONTROL MODES OF OPERATION
The ADA4311-1 features four power modes: full power,
power, power, and shutdown. The power modes are controlled
by two logic pins, PD0 and PD1. The power-down control pins
are compatible with standard 3 V and 5 V CMOS logic. Table 6
shows the various power modes and associated logic states. In
the power-down mode, the output of the amplifier goes into a
high impedance state.
Table 6. Power Modes
PD1
PD0
Power Mode
Total Supply
Current (mA)
Output
Impedance
Low
Full Power
23.6
Low
High
Power
15.8
Low
High
Low
Power
10.4
Low
High
Power-Down
1.8
High
EXPOSED THERMAL PAD CONNECTIONS
The exposed thermal pad on the 10-lead MSOP is both the
reference for the PD pins and the only electrical connection for
the negative supply voltage. Therefore, in the 10-lead MSOP,
the ADA4311-1 can only be used on a single supply. The exposed
thermal pad must be connected to ground. Failure to do so
renders the part inoperable.
A requirement for this package is that the thermal pad be
connected to a solid plane with low thermal resistance, ensuring
adequate heat transfer away from the die and into the board.
POWERLINE APPLICATION
Applications (that is, powerline AV modems) requiring greater
than 10 dBm peak power should consider using an external
line driver, such as the ADA4311-1. Figure 22 shows an example
interface between the TxDAC output and the ADA4311-1 biased
for single-supply operation. The peak-to-peak differential
output voltage swing of the TxDAC should be limited to
2 V p-p, with the gain of the ADA4311-1 configured to realize
the additional voltage gain required by the application. A low-
pass filter should be considered to filter the DAC images
inherent in the signal reconstruction process. In addition, dc
blocking capacitors are required to level-shift the output signal
of the TxDAC to the common-mode level of the ADA4311-1
(that is, VMID = VCC GND/2).
0.1F
RSET
R
E
F
IO
IOUTP+
IOUTP–
0dB TO –7.5dB
OPTIONAL
LCLPF
VMID
T
xD
IS
A
B
L
E
ADA4311-1
1/2
RE
F
A
D
J
TxDAC
06
940
-01
9
Figure 22. TxDAC Output Directly via Center-Tap Transformer
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADA4311-1ARHZ-R71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, Dual, High Current Output Line Driver with Shutdown |
| ADA4311-1ARHZ-RL | 功能描述:IC LINE DRVR DUAL HI CURR 10MSOP 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:1 输出类型:满摆幅 转换速率:0.11 V/µs 增益带宽积:350kHz -3db带宽:- 电流 - 输入偏压:4nA 电压 - 输入偏移:20µV 电流 - 电源:260µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SO 包装:带卷 (TR) |
| ADA4311-1ARHZ-RL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, Dual, High Current Output Line Driver with Shutdown |
| ADA4312-1ACPZ-R2 | 制造商:Analog Devices 功能描述:HIGH BANDWIDTH POWER LINE DRIVER - Tape and Reel |
| ADA4312-1ACPZ-R7 | 功能描述:缓冲器和线路驱动器 High Bandwidth Power Line Driver RoHS:否 制造商:Intersil 输入线路数量: 输出线路数量: 极性: 电源电压-最大: 电源电压-最小: 最大工作温度:+ 85 C 安装风格: 封装 / 箱体:QFN EP 封装:Reel |
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