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| 型号： | MAX9945AUA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP MOS-INPUT LP/LN 8-MSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 2.2 V/µs |
| 增益带宽积： | 3MHz |
| 电流 - 输入偏压： | 0.05pA |
| 电压 - 输入偏移： | 600µV |
| 电流 - 电源： | 400µA |
| 电流 - 输出 / 通道： | 25mA |
| 电压 - 电源，单路/双路(±)： | 4.75 V ~ 38 V，±2.4 V ~ 19 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
General Description
The MAX9945 operational amplifier features an excellent
combination of low operating power and low input volt-
age noise. In addition, MOS inputs enable the MAX9945
to feature low input bias currents and low input current
noise. The device accepts a wide supply voltage range
from 4.75V to 38V and draws a low 400A quiescent cur-
rent. The MAX9945 is unity-gain stable and is capable of
rail-to-rail output voltage swing.
The MAX9945 is ideal for portable medical and industri-
al applications that require low noise analog front-ends
for performance applications such as photodiode trans-
impedance and chemical sensor interface circuits.
The MAX9945 is available in both an 8-pin MAX and
a space-saving, 6-pin TDFN package, and is specified
over the automotive operating temperature range
(-40°C to +125°C).
Applications
Medical Pulse Oximetry
Photodiode Sensor Interface
Industrial Sensors and Instrumentation
Chemical Sensor Interface
High-Performance Audio Line Out
Active Filters and Signal Processing
Features
o +4.75V to +38V Single-Supply Voltage Range
o ±2.4V to ±19V Dual-Supply Voltage Range
o Rail-to-Rail Output Voltage Swing
o 400A Low Quiescent Current
o 50fA Low Input Bias Current
o 1fA/√√Hz Low Input Current Noise
o 15nV/√√Hz Low Noise
o 3MHz Unity-Gain Bandwidth
o Wide Temperature Range from -40°C to +125°C
o Available in Space-Saving, 6-Pin TDFN Package
(3mm x 3mm)
MAX9945
38V, Low-Noise, MOS-Input,
Low-Power Op Amp
________________________________________________________________
Maxim Integrated Products
1
19-4398; Rev 1; 12/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX9945ATT+
-40°C to +125°C
6 TDFN-EP*
AUE
MAX9945AUA+
-40°C to +125°C
8 MAX
—
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
MAX is a registered trademark of Maxim Integrated Products, Inc.
IN-
IN+
OUT
VEE
VCC
PHOTODIODE
SIGNAL
CONDITIONING/
FILTERS
ADC
MAX9945
Typical Operating Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9945AUA+ | 功能描述:运算放大器 - 运放 38V MOS-Input Op Amp 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 |
| MAX9945AUA+T | 功能描述:运算放大器 - 运放 38V MOS-Input Op Amp 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 |
| MAX9945EVKIT+ | 功能描述:放大器 IC 开发工具 38V MOS-Input Op Amp RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9947ETE+ | 功能描述:射频收发器 AISG Interface RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MAX9947ETE+T | 功能描述:射频收发器 AISG Interface RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
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