AD5531BRU

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Data acquisition is a process of converting physical quantifiable information into digital information for processing and storage. Digital to Analog converters (DACs) are important components used for such data acquisition activities. The AD5531BRU is a precision low power 8-bit DAC which is well suited for the measurement, control and signal processing applications.

The AD5531BRU is a single channel device that requires an external voltage reference connected at the reference pins to operate. An external reference enables the device to extend resolution and maintain accuracy over wide input and temperature operating conditions. In addition, this DAC also has an internal 2.5V output that can be used in place of the external reference in low accuracy applications.

The analog output voltage of the DAC is determined by applying the 8-bit digital word to the parallel data inputs. This digital input can be latched into the device by applying the write (WR) pulse or by choosing the hardware or software write-enable (WE) options. Once the digital word is latched in to the DAC, it produces a corresponding analog voltage at the output.

The AD5531BRU can be used in applications such as DC motor control, temperature and pressure sensors, ADC/DAC calibration, light and process control and many other similar applications. It is also suited for audio pre-amplifier control and bias control applications such as model locking and soft-start functions, etc. The ports of this device are compatible with all Pentium processors and other microprocessors, thus making it very easy to interface with the device for applications such as control systems and power management.

The AD5531BRU offers low noise and low power consumption, making it an ideal choice for portable and battery operated systems. In addition, the device has a current leakage specification of only -10 nA @ 2.5V. This offers significant safety any applications. It operates over a wide temperature range of -40°C to +85°C and is available in a small TSSOP-14 package.

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