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參數(shù)資料
| 型號： | MAX4305 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 740MHz, Low-Noise, Low-Distortion Op Amps in SOT23-5 |
| 中文描述： | 740MHz、低噪聲、低失真運算放大器，SOT23-5封裝 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 132K |
| 代理商： | MAX4305 |
appears inductive at high frequencies. This inductance
forms an L-C resonant circuit with the capacitive load,
which causes peaking in the frequency response and
degrades the amplifier’s phase margin.
The MAX4104/MAX4105/MAX4304/MAX4305 drive
capacitive loads up to 10pF without oscillation.
However, some peaking may occur in the frequency
domain (Figure 3). To drive larger capacitance loads or
to reduce ringing, add an isolation resistor between the
amplifier’s output and the load (Figure 4).
The value of R
ISO
depends on the circuit’s gain and the
capacitive load (Figure 5). Figure 6 shows the
MAX4104/MAX4105/MAX4304/MAX4305 frequency
response with the isolation resistor and a capacitive
load. With higher capacitive values, bandwidth is domi-
nated by the RC network formed by R
ISO
and C
L
; the
bandwidth of the amplifier itself is much higher. Also
note that the isolation resistor forms a divider that
decreases the voltage delivered to the load.
Maxim’s High-S peed Evaluation Boards
The MAX4104 evaluation kit manual shows a suggest-
ed layout for Maxim’s high-speed, single-amplifier eval-
uation boards. This board was developed using the
techniques described previously (see Layout and
Power-Supply Bypassing section). The smallest avail-
able surface-mount resistors were used for the feed-
back and back-termination resistors to minimize the
M
740MHz, Low-Noise, Low-Distortion
Op Amps in SOT23-5
______________________________________________________________________________________
11
Figure 3a. MAX4104 Frequency Response with Capacitive
Load and No Isolation Resistor
30
25
-20
100k
1M
10M
FREQUENCY (Hz)
100M
1G
-10
-15
G
0
-5
10
5
20
15
C
L
= 10pF
C
L
= 5pF
C
L
= 15pF
25
20
-25
100k
1M
10M
FREQUENCY (Hz)
100M
1G
-15
-20
N
-5
-10
5
0
15
10
C
L
= 5pF
C
L
= 15pF
C
L
= 10pF
Figure 3b. MAX4304 Frequency Response with Capacitive
Load and No Isolation Resistor
Figure 3d. MAX4305 Frequency Response with Capacitive
Load and No Isolation Resistor
Figure 3c. MAX4105 Frequency Response with Capacitive
Load and No Isolation Resistor
30
25
-20
100k
1M
10M
FREQUENCY (Hz)
100M
1G
-10
-15
N
0
-5
10
5
20
15
C
L
= 5pF
C
L
= 15pF
C
L
= 10pF
25
20
-25
100k
1M
10M
FREQUENCY (Hz)
100M
1G
-15
-20
N
-5
-10
5
0
15
10
C
L
= 5pF
C
L
= 15pF
C
L
= 10pF
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4305ESA | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4305ESA+ | 功能描述:運算放大器 - 運放 740MHz Low-Noise ow-Distortion RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4305ESA+T | 功能描述:運算放大器 - 運放 740MHz Low-Noise ow-Distortion RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4305ESA-T | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4305EUK | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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