AD1555APRL

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AD1555APRL is a 16-bit, 500 MSPS A/D converter. It is a key member of the high-speed sampling A/D converter product family from Analog Devices, with excellent signal bandwidth, low power consumption, and unique integrated signal path feature. The application fields of AD1555APRL and its working principle are discussed in the following.

Application Field

AD1555APRL can be used in multiple applications where high performance analog-to-digital conversion is required. It is especially suitable for use in military, aerospace, laboratory, and other demanding applications. Typical applications include:

• Communication systems requiring ultra-high speed operations and wide analog bandwidths
• Radar systems where high speed acquisition and processing of wideband signals is required
• Imaging systems such as medical imaging, electronic imaging and digital cameras
• High speed data acquisition systems for Automatic Test Equipment (ATE)
• High speed test and measurement systems

Working Principle

The AD1555APRL is a 16-bit 500 MSPS A/D converter with integrated precision low pass filter, internal voltage references, and thermoelectric coolers (TECs). It offers a range of receiver architectures and operating modes to accommodate various input signals. With its high speed and wide bandwidth, it can process wideband, wide dynamic range signals in real time. The device typically requires less than 500 mW of supply current, thus allowing OEMs to build ultra-low noise systems.

The AD1555APRL receives analog input signals and first condition them with a low pass filter. This reduces the wideband input noise before it is digitized by the 12-bit A/D burst sampler. The digital output signals are then converted by a high-speed digital FIR. Its high-speed conversion rate reduces overall system noise by providing timely output with minimum latency. Additionally, it contains an internal calibration circuit that allows for improved accuracy and excellent dynamic performance over the device temperature range.

The AD1555APRL is a low noise, high speed A/D converter that delivers an exceptionally precise digital output for wideband analog signals. The device provides robust dynamic performance at a low power consumption point, making it ideal for use in a range of application fields.

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