The AD8541/AD8542/AD8544 are single, dual, and quad rail- to-rail input and output, single-supply amplifiers featuring very low supply current and 1 MHz bandwidth. All are guaranteed to operate from a 2.7 V single supply as well as a 5 V supply. These parts provide 1 MHz bandwidth at a low current consumption of 45 μA per amplifier. Very low input bias currents enable the AD8541/AD8542/AD8544 to be used in battery powered applications and provide excellent common-mode rejection and low distortion.
The AD8541, AD8542, and AD8544 are general‑purpose CMOS rail‑to‑rail amplifiers that operate from a single supply of 2.7 V to 5.5 V. They feature ultra‑low supply current (45 µA per amplifier), low input bias currents (as low as 4 pA), and a 1 MHz bandwidth, making them suitable for battery‑powered, portable, and sensor‑interface applications.
The document lists detailed electrical characteristics, absolute maximum ratings, thermal resistance data, and pin‑out diagrams for the various package options (5‑lead SOT‑23, 5‑lead SC70, 8‑lead SOIC, etc.). It also includes typical performance graphs, ESD cautions, and revision history for the product family.
| Supply Voltage (Vs) – Maximum | 6 V |
|---|---|
| Input Bias Current (typ) | 60 pA |
| Offset Voltage (typ) | 6 mV |
| Power Supply Rejection Ratio (typ) | 65 dB |
| Slew Rate (typ) | 0.75 V/µs |
| Gain‑Bandwidth Product (typ) | 980 kHz |
The amplifiers draw only 45 µA per amplifier, which is ideal for battery‑operated designs.
The AD8541 is offered in 5‑lead SOT‑23, 5‑lead SC70, and 8‑lead SOIC packages.
The absolute maximum supply voltage rating is 6 V.