LTC2259IUJ-14

Analog To Digital Converters (ADC) Overview

The LTC2259IUJ-14 is a 14-bit, 80Msps ultra-low power analog-to-digital converter (ADC) from Analog Devices Inc. It operates on a single 1.8V supply and dissipates 89mW at full speed. The device features a pipeline architecture with an 800MHz full-power bandwidth sample-and-hold circuit. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 73.4dB and a Spurious Free Dynamic Range (SFDR) of 85dB. It supports selectable input ranges from 1VP-P to 2VP-P and offers CMOS, DDR CMOS, or DDR LVDS digital output options.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 80Msps sampling rate
• Ultra-low power consumption of 89mW at 1.8V
• High dynamic range: 73.4dB SNR and 85dB SFDR
• Integrated internal reference and clock duty cycle stabilizer

Analog To Digital Converters (ADC) Applications

• Cellular base stations
• Software defined radios
• Portable medical imaging
• Multi-channel data acquisition
• Nondestructive testing

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IUJ-14' against the manufacturer's current ordering guide to confirm package type and temperature grade. Ensure compatibility with the required digital interface mode (CMOS or LVDS) as pin configurations vary between modes. Cross-reference the datasheet revision date to validate parameter accuracy.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring low power dissipation alongside high-speed 14-bit conversion. Compare against the LTC2260-14 (105Msps) and LTC2261-14 (125Msps) if higher sampling rates are needed. Verify that the 800MHz S/H bandwidth meets the Nyquist requirements for the target input frequencies.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2259-14 series, which includes variants with different maximum sampling rates. The 'I' designation indicates an industrial temperature range (-40°C to 85°C). The 'UJ' suffix identifies the 40-lead 6mm x 6mm QFN package. These devices are pin-compatible with 12-bit versions in the same family.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the LTC2260IUJ-14 and LTC2261IUJ-14, which offer higher sampling speeds but maintain pin compatibility. Lower speed variants like the LTC2256 series may serve as alternatives if reduced power is prioritized over speed.