The AD6801 is a band gap voltage reference that provides a fixed 2.5 V output from inputs between 4.5 V and 36 V. The architecture of the AD680 enables the reference to be operated at a very low quiescent current while still realizing excellent dc characteristics and noise performance. Trimming of the high stability thin-film resistors is performed for initial accuracy and temperature coefficient, resulting in low errors over temperature.
The AD680 provides a fixed 2.5 V output from 4.5 V to 36 V supplies while consuming only 250 pA of quiescent current. It features laser‑trimmed accuracy, 20 ppm/°C temperature coefficient and very low noise (8 µV p‑p from 0.1 Hz to 10 Hz). A temperature‑output pin on the 8‑lead packages allows the device to be used as a temperature transducer.
The device is offered in three package styles—8‑lead PDIP, 8‑lead SOIC and 3‑pin TO‑92—making it suitable for both through‑hole and surface‑mount designs. Typical applications include precision references for data converters, portable equipment, and any low‑power circuitry requiring a stable 2.5 V reference.
| Quiescent Current (max) | 250 pA |
|---|---|
| Noise (0.1 Hz‑10 Hz) | 8 µV p‑p |
| Temperature Coefficient | 20 ppm/°C max |
| Package Options | 8‑lead PDIP, 8‑lead SOIC, 3‑pin TO‑92 |
The AD680 draws a maximum of 250 pA quiescent current.
The device has a temperature coefficient of up to 20 ppm/°C.
Noise is typically 8 µV peak‑to‑peak over the 0.1 Hz to 10 Hz band.
It is offered in 8‑lead PDIP, 8‑lead SOIC, and 3‑pin TO‑92 packages.