AD558JP

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Data acquisition is the process of repetitively measuring physical properties such as temperature, pressure, and position. Analog-to-digital converters (ADCs) are devices used to measure and convert analog signals into digital formats; digital to analog converters (DACs) are used to convert digital signals into analog formats. One example of a DAC is the AD558JP, a dual channel 12-bit, low-power CMOS DAC.

The AD558JP consists of two low-power, 12-bit DACs, a reference buffer and a three-state logic output buffer, all packaged in a 16-pin small outline integrated circuit (SOIC) package. The AD558JP is ideal for use in battery-powered portable equipment due to its low power consumption, which is typically 10.7mW at 3V, and its wide temperature range from -40°C to +105°C. It is also fully specified to operate from -10V to +10V supply rails, making it suitable for applications with a wide range of supply voltages.

The most common application of the AD558JP is function generation, such as digital video and audio, voltage-controlled oscillators, analog motor control, and digital power conversion. It can also be used for ADC calibration, analog digital simulators, high resolution arbitrary waveforms, data acquisition systems and DAC testing. The AD558JP also finds application in digital image processing, where accurate conversion of digital signals to analog signals is essential.

The AD558JP features a highly accurate reference, which removes the need for external components to maintain a highly accurate output voltage. The internal reference buffer enables the AD558JP to provide a reference voltage to both DACs, allowing for the output of a bipolar signal. The output of each DAC can swing from +VREF to -VREF, or from GND to VREF, with a resolution of 12 bits.

The operation of the AD558JP is determined by a 3-bit input digital word. When powered up, the device applies its reference voltage to the DAC inputs, which results in a binary code being applied to the DACs. The output can then be set to the desired binary code by the output buffers. The DACs will remain in that state until the input digital word is changed.

The AD558JP is an ideal choice for designers looking for a high precision, low power DAC to use in data acquisition systems or other precision conversion applications. The device’s wide operating temperature range makes it suitable for a wide range of applications, and its ability to interface with external circuitry allows it to be easily integrated into existing systems. With its wide range of features and performance specifications, the AD558JP is a great choice for any digital-to-analog conversion task.

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