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參數(shù)資料
| 型號： | ADA4311-1ARHZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LINE DRVR DUAL HI CURR 10MSOP |
| 標準包裝： | 3,000 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 2 |
| 轉(zhuǎn)換速率： | 1050 V/µs |
| -3db帶寬： | 310MHz |
| 電流 - 輸入偏壓： | 4.5µA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 11.8mA |
| 電壓 - 電源，單路/雙路(±)： | 6 V ~ 12 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 10-MSOP |
| 包裝： | 帶卷 (TR) |
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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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADA4311-1ARHZ-RL1 | 制造商:AD 制造商全稱: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:緩沖器和線路驅(qū)動器 High Bandwidth Power Line Driver RoHS:否 制造商:Intersil 輸入線路數(shù)量: 輸出線路數(shù)量: 極性: 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 安裝風格: 封裝 / 箱體:QFN EP 封裝:Reel |
| ADA4312-1ACPZ-RL | 功能描述:緩沖器和線路驅(qū)動器 WB Diff Hi Out Crnt Line Dvr w/ Shutdown RoHS:否 制造商:Intersil 輸入線路數(shù)量: 輸出線路數(shù)量: 極性: 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 安裝風格: 封裝 / 箱體:QFN EP 封裝:Reel |
| ADA4320-1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Power, Low Distortion Upstream |
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