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| 型号： | MAX494ESD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP QD MICROPWR R/R 14SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.2 V/µs |
| 增益带宽积： | 500kHz |
| 电流 - 输入偏压： | 25nA |
| 电压 - 输入偏移： | 200µV |
| 电流 - 电源： | 150µA |
| 电流 - 输出 / 通道： | 30mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 6 V，±1.35 V ~ 3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC |
| 包装： | 带卷 (TR) |
MAX492/MAX494/MAX495
Single/Dual/Quad, Micropower,
Single-Supply Rail-to-Rail Op Amps
12
______________________________________________________________________________________
in series with IN-, IN+, or both. Series resistors are not
recommended for amplifier applications, as they may
increase input offsets and decrease amplifier bandwidth.
Output Loading and Stability
Even with their low quiescent current of less than 150A
per op amp, the MAX492/MAX494/MAX495 are well
suited for driving loads up to 1k
while maintaining DC
accuracy. Stability while driving heavy capacitive loads
is another key advantage over comparable CMOS rail-
to-rail op amps.
In op amp circuits, driving large capacitive loads
increases the likelihood of oscillation. This is especially
true for circuits with high loop gains, such as a unity-
gain voltage follower. The output impedance and a
capacitive load form an RC network that adds a pole to
the loop response and induces phase lag. If the pole
frequency is low enough—as when driving a large
capacitive load—the circuit phase margin is degraded,
leading to either an under-damped pulse response or
oscillation.
10
s/div
VIN
50mV/div
VOUT
50mV/div
10
s/div
VIN
50mV/div
VOUT
50mV/div
10
s/div
VIN
50mV/div
VOUT
50mV/div
Figure 7c. MAX492 Voltage Follower with 500pF Load—
RL = ∞
Figure 7a. MAX492 Voltage Follower with 500pF Load—
RL = 5k
Figure 7b. MAX492 Voltage Follower with 500pF Load—
RL = 20k
VIN
50mV/div
VOUT
50mV/div
10
s/div
Figure 6. MAX492 Voltage Follower with 1000pF Load
(RL = ∞)
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相关代理商/技术参数 |
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|---|---|
| MAX494MJD | 功能描述:运算放大器 - 运放 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 |
| MAX4950ACTX+ | 功能描述:均衡器 Single PCIe Re-Driver RoHS:否 制造商:Texas Instruments |
| MAX4950ACTX+T | 功能描述:IC PCIE REDRIVER DUAL 36-TQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,240 系列:GD 类型:收发器 驱动器/接收器数:3/5 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:20-DIP（0.300"，7.62mm） 供应商设备封装:20-PDIP 包装:管件 |
| MAX4950CTO+ | 功能描述:IC PCIE REDRIVER 3.3V 42TQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:2,500 系列:- 类型:驱动器 驱动器/接收器数:4/0 规程:RS422 电源电压:4.5 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| MAX4950CTO+T | 功能描述:IC PCIE REDRIVER 3.3V 42TQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,240 系列:GD 类型:收发器 驱动器/接收器数:3/5 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:20-DIP（0.300"，7.62mm） 供应商设备封装:20-PDIP 包装:管件 |
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