AD5235BRUZ25

Data Acquisition - Digital Potentiometers - AD5235BRUZ25 application field and working principle

Digital Potentiometer (DPOT) are very common in the data acquisition active component marketplace. Devices such as the AD5235BRUZ25, offer a small footprint, low power and accurate digital programmed resistance with an 8-bit or 6-bit resolution control. DPTs can allow a designer to program a desired electrical resistance for a component, or apply a resistance in series with a transducer to perform a linearization or temperature compensation function.

The AD5235BRUZ25 DPOT from Analog Devices is the first DPOT to offer 32Kb of resolution, a much higher resolution than existing DPOTs on the market. This makes it ideal for application in medical, industrial, communications and other data acquisition systems.

The AD5235BRUZ25 is an 8-bit digital potentiometer that provides a range of 64Kb of resistance, up to 63kohm. It features low power consumption, fast settling times with low noise and low distortion and is ideal for data acquisition applications where accuracy, high speed and low power are required. It is available in a very small form factor, with a 4mmx4mm TSSOP-20 package.

The AD5235BRUZ25 includes 128 selectable resistance values, providing a smooth and linear potentiometer characteristic curve. The device functions by using binary weighted digital steps to create the desired resistance. In addition, the device is designed with a proprietary charge-pump circuitry which helps to reduce the power consumption even further.

The AD5235BRUZ25 is an ideal choice for a variety of data acquisition applications. It is capable of providing accurate resistance control for transducers and linearization or temperature compensation for temperature dependent interface amplifiers. It can also be used for power control of variable loads in motor and amplifier control applications.

The working principle of the AD5235BRUZ25 is based on a binary weighted ladder network configuration. This network is divided into two parts: the upper part consists of a lower-bit network while the bottom part consists of an upper-bit network. A digital control register is used to drives both the upper and lower bit networks. Each bit in the control register has a weight associated with it, depending on its position in the digital word. The values of the resistors in the upper and lower bit networks are selected so that the proportion of the total resistance created is equivalent to the weight of the digital control values.

The AD5235BRUZ25 is a very advanced and precise data acquisition tool. It provides low power consumption, high accuracy and fast settling times, making it ideal for a variety of data acquisition applications. Its ease of use and high precision makes it the best choice for medical, industrial, communications and other data acquisition systems.