Analog Devices / Maxim Integrated MAX44246运算放大器
Maxim MAX44246运算放大器为36V、超高精度、低噪声、低漂移双通道运算放大器，采用专有的斩波稳定和自调零技术，可基本消除直流失调和漂移。该方法对输入失调进行连续测量和补偿，在整个工作时间和温度范围内消除漂移及1/f 噪声的影响。这些双通道器件具有满摆幅输出，采用2.7V至36V单±±电源供电，每个通道仅消耗0.42mA电流，输入参考噪声电压低至9nV/√。该集成电路为单位增益稳定型，增益带宽积为5MHz。有极佳的性能指标：5µV (最大值)失调电压、20nV/℃ (最大值)漂移、0.1Hz至10Hz范围噪声仅为117nVP-P 适用于超低噪声、超高直流精度的应用，如：压力传感器、应变计、高精度电子秤、医疗仪器等设备。IC采用8引脚µMAX®封装或者SO封装，工作在-40℃至+125℃温度范围。
The ICs are unity-gain stable with a gain-bandwidth product of 5MHz. With excellent specifications such as offset voltage of 5µV (max), drift of 20nV/°C (max), and 117nVP-P noise in 0.1Hz to 10Hz, these ICs are ideally suited for applications requiring ultra-low noise, and DC precision such as interfacing with pressure sensors, strain gauges, precision weight scales, and medical instrumentation. The ICs are available in 8-pin µMAX® or SO packages and are rated over the -40°C to +125°C temperature range.
特性
- 2.7V to 36V Power-supply range
- 5µV (max) Ultra-low input VOS
- Low 20nV/°C (max) of offset drift
- Low 9nV/√ noise at 1kHz
- 1µs Fast settling time
- 5MHz Gain-bandwidth product
- Rail-to-rail output
- Integrated EMI filter
- Low 0.55mA per channel (max) quiescent current
- 8-Pin µMAX/SO package
应用
- Battery-powered equipment
- Load cell amplifiers
- PLC analog I/O modules
- Precision instrumentation
- Transducer amplifiers
Typical Operating Circuit
发布日期: 2014-02-11
| 更新日期: 2023-04-13