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| 型号： | MAX4224EUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC AMP CURRENT FB LP SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 放大器类型： | 电流反馈 |
| 电路数： | 1 |
| 转换速率： | 1700 V/µs |
| -3db带宽： | 600MHz |
| 电流 - 输入偏压： | 4µA |
| 电压 - 输入偏移： | 500µV |
| 电流 - 电源： | 6mA |
| 电流 - 输出 / 通道： | 80mA |
| 电压 - 电源，单路/双路(±)： | ±2.85 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 标准包装 |
| 其它名称： | MAX4224EUT+TDKR |
MAX4223–MAX4228
1GHz, Low-Power, SOT23,
Current-Feedback Amplifiers with Shutdown
______________________________________________________________________________________
13
very low output impedance at high frequencies to main-
tain measurement accuracy. The combination of high
speed, fast slew rate, low noise, and low distortion
makes the MAX4223–MAX4228 ideally suited for use as
buffer amplifiers in high-speed ADC applications.
Video Line Driver
The MAX4223–MAX4228 are optimized to drive coaxial
transmission lines when the cable is terminated at both
ends, as shown in Figure 3. Note that cable frequency
response may cause variations in the signal’s flatness.
Driving Capacitive Loads
A correctly terminated transmission line is purely resis-
tive and presents no capacitive load to the amplifier.
Although the MAX4223–MAX4228 are optimized for AC
performance and are not designed to drive highly
capacitive loads, they are capable of driving up to
25pF without excessive ringing. Reactive loads
decrease phase margin and may produce excessive
ringing and oscillation (see
Typical Operating
Characteristics). Figure 4’s circuit reduces the effect of
large capacitive loads. The small (usually 5
to 20)
isolation resistor RISO, placed before the reactive load,
prevents ringing and oscillation at the expense of a
small gain error. At higher capacitive loads, AC perfor-
mance is limited by the interaction of load capacitance
with the isolation resistor.
Maxim’s High-Speed
Evaluation Board Layout
Figures 7 and 8 show a suggested layout for Maxim’s
high-speed, single-amplifier evaluation boards. These
boards were developed using the techniques described
above. The smallest available surface-mount resistors
were used for the feedback and back-termination resis-
tors to minimize the distance from the IC to these resis-
tors, thus reducing the capacitance associated with
longer lead lengths.
SMA connectors were used for best high-frequency
performance. Because distances are extremely short,
performance is unaffected by the fact that inputs and
outputs do not match a 50
line. However, in applica-
tions that require lead lengths greater than 1/4 of the
wavelength of the highest frequency of interest, con-
stant-impedance traces should be used.
Fully assembled evaluation boards are available for the
MAX4223 in an SO-8 package.
MAX4223
MAX4224
MAX4225
MAX4226
MAX4227
MAX4228
RG
IN-
IN+
OUT
RT
75
RT
75
RT
75
75
CABLE
75
CABLE
RF
Figure 3. Video Line Driver
MAX4223
MAX4224
MAX4225
MAX4226
MAX4227
MAX4228
RG
IN-
IN+
RISO
OUT
RF
CL
RL
Figure 4. Using an Isolation Resistor (RISO) for High
Capacitive Loads
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4224EUT-TG068 | 制造商:Maxim Integrated Products 功能描述:1GHZ, LOW-POWER, SOT23, CURRENT-FEEDBACK AMPL - Tape and Reel |
| MAX4225ESA | 功能描述:高速运算放大器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4225ESA+ | 功能描述:高速运算放大器 1GHz Current Feedback Amp RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4225ESA+T | 功能描述:高速运算放大器 1GHz Current Feedback Amp RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4225ESA-T | 功能描述:高速运算放大器 RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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