The MAX4475-MAX4478/MAX4488/MAX4489 are wideband, low-noise, low-distortion operational amplifiers with rail-to-rail outputs and single-supply operation. They have ultra-low distortion and low noise characteristics, making them ideal for applications that require low distortion and/or low noise.
The MAX4475‑MAX4478 and MAX4488‑MAX4489 are wide‑band, low‑noise, low‑distortion operational amplifiers that operate from a single supply as low as 2.7 V and provide rail‑to‑rail output swings. They draw only 2.2 mA per amplifier in normal mode and feature ultra‑low distortion (0.0002 % THD+N) and low input noise.
Key features include a low‑power shutdown mode (0.01 pA), unity‑gain stability (MAX4475‑MAX4478) or internal gain compensation (MAX4488‑MAX4489), and availability in compact 6‑pin SOT‑23, TDFN, UMAX, SO, and TSSOP packages. Applications cover ADC buffers, DAC output stages, low‑noise microphone preamps, digital scales, strain‑gauge amplifiers, and medical instrumentation.
| Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Quiescent Supply Current (Normal mode) | 2.2 mA per amplifier |
| Shutdown Mode Current | 0.01 pA |
| Large‑Signal Voltage Gain | 120 dB |
The MAX4475 series operates from a single supply of 2.7 V to 5.5 V.
Each MAX4478 amplifier draws about 2.2 mA of quiescent supply current.
In shutdown mode the MAX4475 reduces its supply current to 0.01 pA.