The AD8671/AD8672/AD8674 are three high-precision, low-noise, low input bias current operational amplifiers. They feature extremely low noise, extremely low offset voltage and drift, low input bias current, 10 MHz bandwidth and low power consumption. Outputs are stable with capacitive loads of over 1000 pF. Supply current is less than 3 mA per amplifier at 30 V. The AD8671/AD8672/AD8674 combination provides outstanding linearity, wide bandwidth and low power consumption, making them ideal for many applications, such as PLL filters, GPS filters, instrumentation, sensors and controllers, and high-quality audio.
The AD8672 is a precision, very low‑noise operational amplifier featuring a 2.8 nV/√Hz voltage noise density, 10 MHz gain‑bandwidth product and low input bias current. It operates from a dual‑supply of +5 V to +15 V and is available in 8‑lead SOIC and MSOP packages.
The document provides detailed electrical characteristics, absolute maximum ratings, typical performance curves and recommended applications such as PLL filters, GPS filters, instrumentation and professional audio.
| Voltage Noise Density (1 kHz) | 2.8 nV/√Hz |
|---|---|
| Gain Bandwidth Product | 10 MHz |
| Supply Current per Amplifier (typical) | 3 mA |
| Input Offset Voltage (typical) | 75 µV |
| Input Bias Current (typical) | 3 nA |
The AD8672 has a typical voltage noise density of 2.8 nV/√Hz at 1 kHz.
The gain‑bandwidth product is 10 MHz.
Each amplifier typically draws 3 mA from the supply.
The typical input bias current is 3 nA.