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| 型号： | MAX4321EUK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP RRIO LV SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 2 V/µs |
| 增益带宽积： | 5MHz |
| 电流 - 输入偏压： | 50nA |
| 电压 - 输入偏移： | 1200µV |
| 电流 - 电源： | 725µA |
| 电流 - 输出 / 通道： | 50mA |
| 电压 - 电源，单路/双路(±)： | 2.4 V ~ 6.5 V，±1.2 V ~ 3.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1389 (CN2011-ZH PDF) |
| 其它名称： | MAX4321EUK+TDKR |
MAX4321
Low-Cost, Low-Voltage, Rail-to-Rail,
Input/Output, SOT23 5MHz Op Amp
8
_______________________________________________________________________________________
Rail-to-Rail Output Stage
The minimum output voltage will be within millivolts of
ground for single-supply operation where the load is
referenced to ground (VEE). Figure 3 shows the input
voltage range and output voltage swing of a MAX4321
connected as a voltage follower. With a +3V supply
and the 100k
Ω load tied to ground, the output swings
from 0.02V to 2.97V. The maximum output voltage
swing depends on the load but will be within 300mV of
a +5V supply, even with the maximum load (250
Ω to
ground).
Driving a capacitive load can cause instability in most
high-speed op amps, especially those with low quies-
cent current. The MAX4321 has a high tolerance for
capacitive loads. It is stable with capacitive loads up to
500pF. Figure 4 gives the stable operating region for
capacitive loads. Figures 5 and 6 show the response
with capacitive loads and the results of adding an isola-
tion resistor in series with the output (Figure 7). The
resistor improves the circuit’s phase margin by isolating
the load capacitor from the op amp’s output.
Figure 3. Rail-to-Rail Input /Output Voltage Range
Figure 4. Capacitive-Load Stability
Figure 5. Small-Signal Transient Response with Capacitive
Load
Figure 6. Transient Response to Capacitive Load with Isolation
Resistor
IN
400ns/div
VOLTAGE
50mV/div
OUT
AV = +1
CL = 500pF
IN
400ns/div
VOLTAGE
50mV/div
OUT
AV = +1
CL = 1000pF
RS = 39
Ω
IN
2
μs/div
VOLTAGE
1V/div
OUT
VCC = 3V
AV = +1
RL = 100k
Ω
10,000
100
1k
100k
10k
RESISTIVE LOAD (
Ω)
LOAD
CAPACITIVE
(pF)
1000
UNSTABLE
REGION
RL TO VEE
VOUT = VCC / 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4322ESA | 功能描述:运算放大器 - 运放 Low-Power Rail-Rail I/O RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX4322ESA+ | 功能描述:运算放大器 - 运放 Low-Power Rail-Rail I/O RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX4322ESA+T | 功能描述:运算放大器 - 运放 Low-Power Rail-Rail I/O RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX4322ESA-T | 功能描述:运算放大器 - 运放 Low-Power Rail-Rail I/O RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX4322EUA | 功能描述:运算放大器 - 运放 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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