MAX4249
UCSP封装、单电源、低噪声、低失真、满摆幅运算放大器
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The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage-noise density (7.9nV/
) and low input current-noise density (0.5fA/). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise.For additional power conservation, the MAX4249/MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and puts the amplifiers' outputs into a high-impedance state. The MAX4249–MAX4257's outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity-gain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chip-scale package (UCSP™) and the MAX4253 is available in a 10-bump UCSP. The MAX4250AAUK comes in a 5-pin SOT23 package and is specified for operation over the automotive (-40°C to +125°C) temperature range.
关键特性
- Available in Space-Saving UCSP, SOT23, and µMAX® Packages
- Low Distortion: 0.0002% THD (1kΩ load)
- 400µA Quiescent Supply Current per Amplifier
- Single-Supply Operation from 2.4V to 5.5V
- Input Common-Mode Voltage Range Includes Ground
- Outputs Swing Within 8mV of Rails with a 10kΩ Load
- 3MHz GBW Product, Unity-Gain Stable (MAX4250-MAX4254)
- 22MHz GBW Product, Stable with AV ≥ 10V/V (MAX4249/MAX4255/MAX4256/MAX4257)
- Excellent DC Characteristics
- VOS = 70µV
- IBIAS = 1pA
- Large-Signal Voltage Gain = 116dB
- Low-Power Shutdown Mode
- Reduces Supply Current to 0.5µA
- Places Outputs in a High-Impedance State
- 400pF Capacitive-Load Handling Capability
应用
- ADC缓冲器
- 自动测试设备(ATE)
- 心电监护仪
- 数字测量/张力计量
- 显示器：工业、前面板和仪表
- 工业：过程测量与控制
- 医疗仪表
- PA控制
- 面板表
- 便携式电池供电设备
- 电表
- 可编程逻辑控制器(PLC)
- 无线通信设备
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