LTC2141IUP-14

Analog To Digital Converters (ADC) Overview

The LTC2141IUP-14 is a dual-channel, 14-bit, 40Msps low-power analog-to-digital converter (ADC) from Analog Devices. It features simultaneous sampling with a pipeline architecture and supports differential or single-ended inputs. The device operates on a single 1.8V supply and offers selectable input ranges of 1V to 2V peak-to-peak. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 70.5dB at 30MHz input and an Spurious Free Dynamic Range (SFDR) of 89dB. It integrates internal references and provides CMOS, DDR CMOS, or DDR LVDS digital outputs.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling with 14-bit resolution and 40Msps throughput
• Low power consumption: 65mW total (33mW per channel) at 40Msps
• Ultralow jitter of 0.08ps RMS for high-frequency undersampling
• Optional clock duty cycle stabilizer and data output randomizer

Analog To Digital Converters (ADC) Applications

• Software Defined Radios
• Cellular Base Stations
• Portable Medical Imaging
• Multi-Channel Data Acquisition
• Nondestructive Testing

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation. The provided datasheet covers the LTC2141-12 series; confirm that the '14' suffix denotes the 14-bit variant and matches the IUP package and temperature grade specifications before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring synchronized dual-channel digitization with low power constraints. Ensure the system clock meets the timing requirements for the 40Msps rate and verify that the input signal range fits within the 1V to 2Vp-p selectable window.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC214x family of low-power dual ADCs. It shares the same 64-pin QFN package and pinout as the LTC2142-12 (65Msps) and LTC2140-12 (25Msps), differing primarily in sampling speed and resolution variants.

Analog To Digital Converters (ADC) Replacement Considerations

LTC2142IUP-14#PBF (65Msps variant) and LTC2140IUP-14#PBF (25Msps variant) are pin-compatible alternatives within the same family offering different sampling rates.