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| 型号： | MAX4492AUD+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP QUAD R-R I/O 14-TSSOP |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 输出类型： | 满摆幅 |
| 转换速率： | 10 V/µs |
| 增益带宽积： | 10MHz |
| 电流 - 输入偏压： | 50pA |
| 电压 - 输入偏移： | 1500µV |
| 电流 - 电源： | 800µA |
| 电流 - 输出 / 通道： | 50mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 1390 (CN2011-ZH PDF) |
pole at frequency (2
πR′CIN)-1, where R′ is the parallel
combination of the gain-setting resistors for the invert-
ing or noninverting amplifier configuration (Figure 2). If
the pole frequency is less than or comparable to the
unity-gain bandwidth (10MHz), the phase margin will
be reduced, and the amplifier will exhibit degraded
AC performance through either ringing in the step
response or sustained oscillations. The pole frequency is
10MHz when R
′ = 3.2k. To maximize stability, R′ <3k
is recommended.
Applications that require rail-to-rail operation with mini-
mal loading (for small VDD - VOH and VOL - VSS) will
typically require R
′ values >3k. To improve step
response under these conditions, connect a small
capacitor Cf between the inverting input and output.
Choose Cf as follows:
Cf = 5(R / Rf) [pf]
where Rf is the feedback resistor and R is the gain-set-
ting resistor (Figure 2).
Figure 3 shows the step response for a noninverting
amplifier subject to R
′ = 4k with and without the Cf
feedback capacitor.
MAX4490/MAX4491/MAX4492
Low-Cost, High-Slew-Rate,
Rail-to-Rail I/O Op Amps in SC70
6
_______________________________________________________________________________________
Figure 1a. Output Source Current vs. Temperature
Figure 1b. Output Sink Current vs. Temperature
0
1
2
3
4
5
6
-40
-10
-25
5
20 35 50 65 80
125
95 110
TEMPERATURE (
°C)
OUTPUT
SOURCE
CURRENT
(mA)
VDD - VOH = 200mV
VDD - VOH = 100mV
VDD - VOH = 50mV
VDD = 5V
VDD = 2.7V
0
1
2
3
4
5
6
7
8
9
-40
-10
-25
5
20 35
65
50
80
110
95
125
TEMPERATURE (
°C)
OUTPUT
SINK
CURRENT
(mA)
VDD - VOH = 200mV
VDD - VOH = 100mV
VDD - VOH = 50mV
VDD = 5V
VDD = 2.7V
Figure 2. Inverting and Noninverting Amplifier with Feedback
Compensation
MAX4490
VIN
VOUT
R
′ = R || Rf
RfCf = RCIN
Rf
Cf
R
MAX4490
VIN
VOUT
R
′ = R || Rf
RfCf = RCIN
Rf
R
Cf
INVERTING
NONINVERTING
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4492AUD+ | 功能描述:运算放大器 - 运放 High-Slew-Rate Rail-Rail 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 |
| MAX4492AUD+T | 功能描述:运算放大器 - 运放 High-Slew-Rate Rail-Rail 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 |
| MAX4492AUD-T | 功能描述:运算放大器 - 运放 High-Slew-Rate Rail-Rail 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 |
| MAX4493ASA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4493AUK | 制造商:Maxim Integrated Products 功能描述:SC70 LOW-POWER GENERAL-PURPOSE DUAL-SUPPLY RAIL-TO-RAIL OP A - Rail/Tube |
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