AD5384BBC-3

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Digital to Analog Converters (DAC) allow analog signals to be generated from a digital source. These devices are found in many modern electronic applications and the AD5384BBC-3 is one such part. This integrated, 12-bit, voltage-output DAC is specifically designed for wide range of applications, such as industrial and automotive sensors, audio amplifiers, data acquisition, and control systems.

The AD5384BBC-3 functions as a voltage-output digital-to-analog converter, providing a highly linear analog output signal from a digital input signal. It converts a 12-bit binary data word into an analog signal. This signal can be easily scaled and shifted from 0 to +3.3V.

The core of the device is a low-power signal path, comprising a latch and a resistive-string digital-to-analog converter (RDAC). The RDAC consists of a network of programmable resistance elements, consisting of four sets. The resistance of each element can be programmed by the resistance ranges—1, 2, 4, 8, 16 and 32. The values of the 16 resistances in the set are determined by the digital code word, which is read into the latch when the device is enabled. The 12-bit word contains the resistance values of each element in the 8 bit sets.

The AD5384BBC-3 incorporates a high accuracy on-chip amplifier, with a 7-bit gain control register. This allows a wide range of output full-scale voltages to be set from 0.606V to 4.946V with very high linearity. The device also features a power-on reset circuit, giving a clean output voltage the moment power is applied. This feature is ideal for use in DC-motor control.

The AD5384BBC-3 has an operating temperature range of -40°C to +85°C, making it well-suited for a variety of industrial and automotive applications. It supports a wide range of supply voltages, from 2.7 V to 5.5 V, allowing it to be used in a variety of circuitboards. The device is also available in 10-lead MSOP, 10-lead no-lead, and 8-lead TDFN packages.

The AD5384BBC-3 is ideally suited for automotive and industrial systems, due to its wide supply voltage range and its high accuracy over an extended temperature range. Its wide range of supply voltages makes it suitable for battery powered devices, such as pressure sensor amplifiers and small audio devices, while its fast settling time allows it to be used in fast data acquisition systems. Its on-chip amplifier and gain control register further widen its application field.

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