Analog Devices Inc.

LTC2285CUP

LTC2285CUP Description

The LTC2285CUP is a high-performance, 14-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This pipelined ADC features a sampling rate of 125 million samples per second (MSPS) and is housed in a 64QFN package, making it suitable for surface-mount applications. The device operates within a temperature range of 0°C to 70°C and supports both differential and single-ended input types. It requires a supply voltage of 2.85V to 3.4V for both analog and digital operations, ensuring compatibility with a wide range of power supply configurations.

The LTC2285CUP includes two ADCs, each with a 1:1 sample-and-hold (S/H) to ADC ratio, enabling simultaneous sampling of two input signals. This simultaneous sampling capability is a key feature, making it ideal for applications requiring precise synchronization of multiple signals. The ADCs are designed to work with both internal and external references, providing flexibility in system design.

LTC2285CUP Features

• High Sampling Rate: The LTC2285CUP boasts a sampling rate of 125 MSPS, allowing for high-speed data acquisition and processing.
• 14-Bit Resolution: With 14-bit resolution, the LTC2285CUP provides precise analog-to-digital conversion, suitable for applications requiring high accuracy.
• Simultaneous Sampling: The ability to sample two input signals simultaneously ensures accurate synchronization, which is crucial for multi-channel systems.
• Flexible Input Types: The ADC supports both differential and single-ended inputs, offering versatility in signal acquisition.
• Wide Supply Voltage Range: Operating with a supply voltage of 2.85V to 3.4V for both analog and digital supplies, the LTC2285CUP is compatible with various power supply configurations.
• Parallel Data Interface: The parallel data interface allows for efficient data transfer and integration with other system components.
• Internal and External Reference: The option to use either an internal or external reference provides flexibility in system design and calibration.

LTC2285CUP Applications

The LTC2285CUP is well-suited for a variety of applications that require high-speed, high-precision data acquisition. Some specific use cases include:

• Communication Systems: Ideal for applications such as digital radio receivers, where high-speed and accurate signal processing are essential.
• Medical Imaging: Suitable for medical imaging equipment that requires precise and rapid data acquisition, such as ultrasound and MRI systems.
• Industrial Automation: Useful in industrial control systems where real-time monitoring and control of multiple signals are necessary.
• Test and Measurement Equipment: Applicable in oscilloscopes and other test equipment that demand high-speed and accurate signal conversion.

Conclusion of LTC2285CUP

The LTC2285CUP is a robust and versatile ADC designed for high-performance applications. Its high sampling rate, 14-bit resolution, and simultaneous sampling capabilities make it an excellent choice for systems requiring precise and synchronized data acquisition. Despite being marked as obsolete, the LTC2285CUP remains a valuable component for legacy systems and applications where its unique features and performance benefits are still relevant.