MAX4249-MAX4257 are low-noise, low-distortion op-amps that 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/√Hz) and low input current-noise density (0.5fA/√Hz). 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 shut-down 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 inter- nally 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 document describes the MAX4249-MAX4257 family of ultra-low distortion (0.0002% THD) and low input voltage-noise density operational amplifiers. These devices feature single-supply operation down to 2.4V, rail-to-rail outputs, and are available in various packages including UCSP, SOT23, and uMAX.
| Quiescent Supply Current (Normal Mode) | 400uA per amplifier |
|---|---|
| Shutdown Supply Current | 0.5uA |
| Total Harmonic Distortion (THD) | 0.0002% |
| Input Voltage-Noise Density | 7.9nV/sqrt(Hz) |
| Supply Voltage Range | 2.4V to 5.5V |
| Gain-Bandwidth Product (Unity Gain Stable) | 3MHz |
The amplifiers support single-supply operation down to 2.4V.
Each amplifier draws 400uA of quiescent supply current.