ISL23428UFVZ

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ISL23428UFVZ is a versatile precision digital potentiometer used in applications such as audio, telecommunications, consumer electronics, automotive, industrial control and medical equipment. This device is a digitally-controlled potentiometer that allows the wiper resistance to be programmed digitally. This digital potentiometer has a total resistance of 10K Ohms and a resolution of 24-bit, enabling the resistance of the entire potentiometer to be adjusted from 8K Ohms up to 10K Ohms in precise increments. It is composed of three resistive elements in series, allowing the MID (middle) Resistance to be adjusted all the way up to the full scale, while the two static resistors remain constant at 10K and 0 Ohms. This can be used, for example, to adjust the gain of an amplifier by varying the resistance in the feedback loop.

ISL23428UFVZ has a SPI interface that can be used to control the device. It is programmed by sending a 16-bit compact command word (CCW). The command word is composed of 4-bit command selector, four 8-bit data bytes and two additional bits used for power up and down configuration. The first 8-bits will always be used to control the MID Resistance, while the remaining 24-bits are used to control the resistance Wiper when more than 8K Ohms of total resistance is required.

ISL23428UFVZ is designed to work with a wide range of voltage levels and operating temperature ranges. It is available in both 5V and 3V operating voltages and is capable of operating over a temperature range of -40°C to +85°C. With its programmable I/O pins, it can be re-configured to meet your system’s requirements from a single package.

In addition to its wide range of application fields, ISL23428UFVZ provides superior performance with its low Noise and high precision. The noise at the output is negligible, and its linearity over the entire range of 10K Ohms is accurate to within 0.1%. This ensures very precise adjustment and operation of the device. The device also offers a Power-On Reset feature that can be enabled to reset the device whenever the power is turned on, providing reliable operation.

In conclusion, ISL23428UFVZ is a high-precision, versatile digital potentiometer that is useful in a range of applications. With its low noise, excellent linearity, wide operating temperature range and programmable I/O pins, it offers superior performance and flexibility in a single device. It is suited for a variety of applications such as audio, telecommunications, consumer electronics, automotive, industrial control and medical equipment.

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