DS1868S-10+

The DS1868S-10+ is a 10-bit digital potentiometer. It is a versatile and powerful integrated device with numerous features, providing a cost-effective solution for data acquisition and control purposes in a variety of applications. The device has two adjustable and two fixed resistors that can be switched and combined with one or two external resistors to form an adjustable resistance of up to 40 KΩ. The device is based on the popular 8-bit serial Interface (SPI) protocol and is programmed using a 4-wire setup. The device is available with an adjustable gain of up to 10x, eliminating the need for external voltage dividers in some applications.

The DS1868S-10+ is designed to address digital potentiometers applications, such as an adjustable bias point, continuously variable gain and attenuation, voltage wrapping and limiting, or saturator output control. It is also used for device control and test applications, to precisely adjust parameters, such as gain, threshold, speed, acceleration, offset and more. Additionally, the device is used in systems that require dynamic input/output range selection, such as portable medical equipment.

The DS1868S-10+ features a serial 8-bit control logic. This control logic allows for fast and accurate operations, with up to 10 bits of resolution per command ensuring smooth read/write operations. Additionally, the device includes 4-wire SPI for serial control and programming. The device also provides an optional BUSY/OK status bit and a separate STATUS register to indicate which bits have been modified. Furthermore, the device also contains an internal programmable DAC ladder to ensure low-frequency noise.

The DS1868S-10+ is designed to be reliable and efficient in operation. It contains a wide voltage range (3.3V transistor logic, 5.5V logic), temperature range of -40°C to +85°C and a 30V operating voltage. Additionally, the device provides an initial write accuracy of 2% and long-term repeatability of 0.1%.

In summary, the DS1868S-10+ is a powerful digital potentiometer that provides a cost-effective and reliable solution for various data acquisition and control applications. The device features fast and accurate control logic, 4-wire SPI for serial operations, an adjustable gain of up to 10x, a wide voltage range and temperature range, and excellent performance characteristics. The device is suited for a variety of applications, such as adjustable bias point, continuously variable gain and attenuation, portable medical equipment, and more.