This document introduces the main features of the AD5246 digital resistor, including 128 positions, 5kΩ, 10kΩ, 50kΩ, 100kΩ resistance range, I2C compatible interface, single supply 2.7V to 5.5V, low power consumption, low temperature coefficient, wide operating temperature range, etc.
The AD5246 provides a compact 2 mm × 2.1 mm SC70‑6 package solution for 128‑position adjustment applications. It functions as an electronic variable resistor and is available in four end‑to‑end resistance values (5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ). The wiper position is controlled via an I²C‑compatible digital interface that also allows read‑back of the current setting.
Operating from a single 2.7 V to 5.5 V supply, the device draws only a few microamps, making it suitable for battery‑operated designs. It features a low temperature coefficient of 45 ppm/°C and operates over –40 °C to +125 °C. An evaluation board and software are available for PC programming.
| Supply voltage range | 2.7 V to 5.5 V |
|---|---|
| Power consumption | 3 µA typical |
| Temperature coefficient | 45 ppm/°C |
| Operating temperature range | -40 °C to +125 °C |
| Maximum continuous current | 5 mA |
The AD5246 operates from a single supply voltage of 2.7 V to 5.5 V.
The AD5246 has a low temperature coefficient of 45 ppm/°C.
Typical power consumption is about 3 µA when powered from 2.7 V to 5.5 V.