DAC7617UB

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Data Acquisition - Digital to Analog Converters (DAC) are essential components of modern circuitry, able to precisely convert digital signals into analog signals for use in communication, automation and control, medical equipment, and a wide array of applications. The DAC7617UB from Texas Instruments is a low power 16-bit quad-channel digital-to-analog converter that offers a voltage output range and excellent precision.

The DAC7617UB is capable of converting both parallel and serial digital inputs into analog voltage or current outputs. It can be used as either a quad channel or two dual channel products. Its 16-bit resolution offers excellent performance, with a low integral nonlinearity (INL) of 0.5 LSB and a full-scale gain error of ± 1 LSB. The DAC7617UB offers voltage output ranges from 0 to 4.096 V and 0 to 10 V, but can easily be extended up to ± 5 V. The device can also be operated internally at a reference voltage of 2.5 V or externally, up to 5 V.

The DAC7617UB is a low power device, and can be run on 3.3 V or 5 V supplies. Its typical power consumption is just 0.5 mW at 3 V and 25 degrees Celsius. The device features a built-in power-on reset circuitry, which allows the output to ramp to 0V after every power cycle. This eliminates the need for an additional external reset circuit. Additionally, internal voltage-to-current (V-to-I) converters are included in the device, to allow the DAC outputs to source or sink current. This feature eliminates the need for external precision resistors, making the device less costly and more efficient.

The DAC7617UB includes a temperature compensation feature that can be enabled by applying an external voltage. This allows the user to reduce gain drift, integral nonlinearity, and offset errors caused by temperature changes. The DAC has a fast settling time, typically <4 µs. The device can operate in unipolar (G=+1) or bipolar (+/-G) modes, and its output impedance is typically 40 Ω. The DAC7617UB provides software-controlled serial addressing to facilitate programming four DACs from a single bus line.

In summary, the DAC7617UB from Texas Instruments is a low power, high performance digital-to-analog converter. Its 16-bit resolution and low integral nonlinearity make it ideal for a variety of applications, such as communication, automation and control, and medical equipment. Its built-in voltage-to-current converters and temperature compensation features eliminate the need for external components, making the device even more economical and efficient. The DAC7617UB is an excellent choice for any digital-to-analog conversion application.

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