LTC2268CUJ-12

Analog To Digital Converters (ADC) Overview

The LTC2268CUJ-12 is a dual-channel, simultaneous sampling analog-to-digital converter (ADC) from the LTC2268 family. It features a 12-bit resolution and operates at a maximum sampling rate of 125 Msps. The device utilizes a pipeline architecture with serial LVDS digital outputs, supporting both 1-lane and 2-lane data modes. It runs on a single 1.8V supply and includes an internal reference. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 73.1 dB and a Spurious Free Dynamic Range (SFDR) of 88 dB. Power dissipation is typically 299 mW in 2-lane mode.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling with 125 Msps max speed
• Serial LVDS outputs with selectable 1 or 2 bits per channel
• Internal reference with selectable input ranges (1VP-P to 2VP-P)
• Low power consumption: 299 mW total (2-lane mode)

Analog To Digital Converters (ADC) Applications

• Communications systems
• Cellular base stations
• Software Defined Radios

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CUJ-12' against official Analog Devices documentation to confirm the 12-bit variant and commercial temperature range (0°C to 70°C). Ensure the ordering code matches the required package type (40-Lead QFN) and lead-free finish specifications before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high-speed dual-channel digitization with low power constraints. Compare SNR and SFDR requirements against the 73.1 dB and 88 dB typical values. Consider the 125 Msps sampling rate and 800 MHz full-power bandwidth for signal fidelity needs.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2268-14/LTC2267-14/LTC2266-14 family of low-power dual ADCs. The 'LTC2268' designation indicates the 125 Msps speed grade. The 'C' suffix denotes the commercial operating temperature range, while 'I' would indicate industrial range. The '12' in the model number specifies the 12-bit resolution variant.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the LTC2267 (105 Msps) and LTC2266 (80 Msps). For higher resolution, the 14-bit versions are available but may have different power characteristics.