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| 型号： | MAX4492AUD+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8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) |
MAX4490/MAX4491/MAX4492
Low-Cost, High-Slew-Rate,
Rail-to-Rail I/O Op Amps in SC70
_______________________________________________________________________________________
5
NAME
FUNCTION
MAX4490
1
IN+
Noninverting Input
PIN
2
VSS
Negative Supply Input. Connect to ground for single-supply operation.
3
IN-
Inverting Input
—
INA-
Inverting Input to Amplifier A
—
INA+
Noninverting Input to Amplifier A
5
VDD
Positive Supply Input
4
OUT
Amplifier Output
—
INC+, IND+
Noninverting Inputs to Amplifiers C and D
—
OUTB
Amplifier B Output
—
INB-
Inverting Input to Amplifier B
—
INB+
Noninverting Input to Amplifier B
—
OUTA
Amplifier A Output
Pin Description
MAX4492
—
11
—
2
3
4
—
10, 12
7
6
5
1
MAX4491
—
4
—
2
3
8
—
7
6
5
1
—
9, 13
INC-, IND-
Inverting Inputs to Amplifiers C and D
—
8, 14
OUTC, OUTD
Amplifiers C and D Outputs
Detailed Description
Rail-to-Rail Input Stage
The MAX4490/MAX4491/MAX4492 CMOS operational
amplifiers have parallel-connected N- and P-channel
differential input stages that combine to accept a com-
mon-mode range extending to both supply rails. The N-
channel stage is active for common-mode input
voltages typically greater than (VSS + 1.2V), and the P-
channel stage is active for common-mode input volt-
ages typically less than (VDD - 1.2V).
Rail-to-Rail Output Stage
The MAX4490/MAX4491/MAX4492 CMOS operational
amplifiers feature class-AB push-pull output stages that
can drive a 100k
load to within 1.5mV of either supply
rail. Short-circuit output current is typically ±50mA.
Figures 1a and 1b show the typical temperature depen-
dence of output source and sink currents, respectively,
for three fixed values of (VDD - VOH) and (VOL - VSS).
For example, at VDD = 5.0V, the load currents that main-
tain (VDD - VOH) = 100mV and (VOL - VSS) = 100mV at
TA = +25°C are 2.2mA and 3.3mA, respectively, when
the load is connected to VDD/2. Consistent resistive-
drive capability is (2.5 - 0.1) / 2.2 = 1.1k
. For the same
application, resistive-drive capability is 2.2k
when the
load is connected to VDD or VSS.
Applications Information
Power-Supply Considerations
The MAX4490/MAX4491/MAX4492 operate from a sin-
gle 2.7V to 5.5V supply or from dual ±1.35V to ±2.75V
supplies with typically 800A supply current per ampli-
fier. A high power-supply rejection ratio of 100dB
allows for extended operation from a decaying battery
voltage, thereby simplifying designs for portable appli-
cations. For single-supply operation, bypass the power
supply with a 0.1F ceramic capacitor placed close to
the VDD pin. For dual-supply operation, bypass each
supply to ground.
Input Capacitance
One consequence of the parallel-connected differential
input stages for rail-to-rail operation is a relatively large
input capacitance CIN (typically 5pF). This introduces a
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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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