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| 型号： | MAX44251AKA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC AMP LNA 20V ULT PREC SOT-23-8 |
| 产品培训模块： | Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 放大器类型： | 自动调零 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 8 V/µs |
| 增益带宽积： | 10MHz |
| 电流 - 输入偏压： | 200pA |
| 电压 - 输入偏移： | 3µV |
| 电流 - 电源： | 1.15mA |
| 电流 - 输出 / 通道： | 96mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 20 V，±1.35 V ~ 10 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 带卷 (TR) |
10
Maxim Integrated
MAX44250/MAX44251/MAX44252
20V, Ultra-Precision, Low-Noise Op Amps
Detailed Description
The MAX44250/MAX44251/MAX44252 are high-preci-
sion amplifiers that have less than 3FV of typical input-
referred offset and low flicker noise. These characteris-
tics are achieved through an autozeroing technique that
samples and finds repeating patterns of signal to cancel
the input offset voltage and 1/f noise of the amplifier.
Autozero
The ICs feature an autozero circuit that allows the devices
to achieve less than 6FV (max) of input offset voltage at
room temperature and eliminate the 1/f noise.
Noise Suppression
Flicker noise, inherent in all active devices, is inversely
proportional to frequency presented. Charges at the
oxide-silicon interface that are trapped-and-released by
MOSFET oxide occurs at low frequency more often. For
this reason, flicker noise is also called 1/f noise.
Electromagnetic interference (EMI) noise occurs at high-
er frequency that results in malfunction or degradation of
electrical equipment.
The ICs have an input EMI filter to avoid the output get-
ting affected by radio frequency interference. The EMI
filter composed of passive devices presents significant
higher impedance to higher frequency.
High Supply Voltage Range
The ICs feature 1.15mA current consumption per channel
and a voltage supply range from either 2.7V to 20V single
supply or ±1.35V to ±10V split supply.
Applications Information
The ICs are ultra-high-precision operational amplifiers with
a high supply voltage range designed for load cell, medi-
cal instrumentation and precision instrument applications.
These devices are also designed to interface with pres-
sure transducers and are ideal for precision weight scale
application as shown in Figure 1.
Figure 1. Weight Scale Application Circuit
10V
+10V
3.3V
3V
VDD
MICRO-
PROCESSOR
VOUT
50RG
RG
VREF
VDD
VSS
VIN-
VIN+
C1
BUFFER
MAX44251
MAX11211
MAX6126
MAX44251
R
+10V
1.5V
BUFFER
R
R1
OUTPUT
-10V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX44251AUA+ | 功能描述:运算放大器 - 运放 20V Low Drift 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 |
| MAX44251AUA+T | 功能描述:运算放大器 - 运放 20V Low Drift 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 |
| MAX44251EVKIT# | 功能描述:放大器 IC 开发工具 MAX44251 Eval Kit 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 |
| MAX44251EVKIT+ | 功能描述:放大器 IC 开发工具 20V ultra-precision low-noise low-drift amplifiers 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 |
| MAX44252ASD+ | 功能描述:运算放大器 - 运放 20V Ultra-Precision Low-Noise 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 |
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