AD9121BCPZ

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The AD9121BCPZ is a high-performance, high-speed, 16-bit digital-to-analog converter (DAC) with 1.8V analog output range. This low power DAC, designed to fit into small form factor boards, is provided in a space-saving 16-lead, 3-by-3 mm LFCSP package. Its low power dissipation of only 470 mW enables it to fit into handheld battery-powered applications and systems with extremely low heat. With up to 80 dB spurious-free dynamic range and an 1100 MHz full-power bandwidth, this DAC is perfectly suited for a wide range of applications such as medical imaging, communications systems, consumer and professional audio, industrial control, test and measurement systems.

The DAC includes an on-chip, low power, low jitter clock multiplier PLL, which simplifies the external circuitry and reduces the cost of the system. In addition, it features an on-board leap-head DAC calibration, which eliminates the need for external resistors for DAC gain setting.

The AD9121BCPZ supports a range of reference voltage levels from 0.1 to 1.8V and provides an output voltage range of 0 to 5V. It also has a differential output, which can be used to drive external transceivers with extremely low power dissipation and crosstalk. The AD9121BCPZ has configurable current sources and sink outputs, which can be used to drive DC-biased loads with extremely low noise and distortion cycles.

The AD9121BCPZ can be used in a variety of applications including digital radiography, ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), industrial process control, consumer and professional audio, digital audio broadcasting (DAB), frequency synthesizers, digital radio, and embedded media applications. With its combination of high performance, low power, and easy configurability, the AD9121BCPZ is an ideal solution for many applications requiring quality audio and high speed digital-to-analog conversion.

The main operating principle of the AD9121BCPZ is based on a clocking scheme. The clock signal generated by the clock multiplier PLL is used to determine the timing of the data output, which enables the conversion of digital data into analog form. The data is then converted by the on-chip output stage, and the analog output is further amplified by the external resistors and the low voltage output buffer. The maximum output speed is 1.0625 Gsps.

The AD9121BCPZ also has a variety of features to ensure accuracy, stability, and reliability. It includes an on-chip poweron reset, power-down and power-up sequencing logic, line over-voltage protection, and on-chip thermal protection. Furthermore, adjustable power sequencing and sequencing between DAC channels can be implemented through the digital ports.

Overall, the AD9121BCPZ is a highly integrated high-performance digital-to-analog converter that offers low power consumption, small footprint and low distortion levels. Its high speed and high precision make it ideal for a variety of applications such as medical imaging, communications systems, consumer and professional audio, industrial control, test and measurement systems, and many others.

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