The DS1845E-100+ from Maxim Integrated is a versatile dual digital potentiometer that offers a unique blend of mixed-signal control in a compact package. Designed to operate over a wide voltage range, this device is ideal for applications requiring precise digital control of analog signals.
Key Features
- Integrated Dual Potentiometer: The DS1845E-100+ features two digitally controlled potentiometers, each with 256-position wiper settings, allowing for fine-tuned adjustments.
- Nonvolatile Memory: Equipped with EEPROM, the device ensures that the last wiper position is stored and maintained even after power is cycled, providing a reliable startup configuration.
- Versatile Voltage Range: This digital potentiometer operates over a 2.7V to 5.5V supply voltage range, making it suitable for a variety of low-voltage applications.
- I²C Serial Interface: The integrated I²C interface facilitates simple communication with microcontrollers and other digital systems, enabling easy adjustments to the potentiometer settings.
Applications
The DS1845E-100+ is designed for diverse applications that require precise control over voltage and current settings. It is particularly useful in:
- Adjustable power supplies
- LCD screen brightness control
- Audio volume control
- Calibration and tuning of systems
Specifications
| Parameter |
Value |
| Resistance Options |
100kΩ |
| Memory Type |
EEPROM |
| Interface Type |
I²C |
| Supply Voltage |
2.7V to 5.5V |
| Temperature Range |
-40°C to +85°C |
Maxim Integrated's DS1845E-100+ is a reliable solution for designers looking to integrate digital control into their analog systems. Its dual-channel design, nonvolatile memory, and easy interfacing offer a high degree of flexibility, making it a valuable component in both commercial and industrial applications.