The ADR1581 is a 1.25V micropower precision shunt voltage reference with wide operating range, high accuracy, low temperature drift and low output impedance.
The ADR1581 is a micropower, precision shunt voltage reference available in the SOT-23 package. It provides a stable 1.250 V output with an initial accuracy of ±0.12% maximum and a temperature drift of ±50 ppm/°C maximum over the industrial temperature range of −40°C to +85°C.
The device is designed for applications requiring low noise, low output impedance, and wide operating current ranges. It is suitable for use in portable battery-powered equipment, cellular phones, notebook computers, PDAs, GPSs, DMMs, computer workstations, industrial transmitters, PCMCIA cards, and automotive systems.
| Initial Accuracy | ±0.12% maximum |
|---|---|
| Temperature Drift | ±50 ppm/°C maximum |
| Output Impedance | 0.5 Ω maximum |
| Operating Temperature Range | -40°C to +85°C |
The ADR1581 provides an accurate 1.250 V output.
The input currents must be between 60 μA and 10 mA.
Yes, it is ideal for use in battery-powered 3 V or 5 V systems due to its low minimum operating current.