Analog Devices Inc.

LTC2298CUP

LTC2298CUP Description

The LTC2298CUP from Analog Devices Inc. is a high-performance, 14-bit, 65Msps dual-channel pipelined analog-to-digital converter (ADC) designed for precision signal acquisition in demanding applications. Operating within a 2.7V to 3.4V supply range for both analog and digital domains, it supports differential or single-ended inputs and features simultaneous sampling for synchronized multi-channel data capture. Housed in a compact 64-QFN package, this ADC is optimized for surface-mount designs and offers a 1:1 sample-and-hold (S/H) to ADC ratio, ensuring minimal latency. Despite its obsolete status, it remains a robust choice for legacy systems requiring high-speed, high-resolution conversion with external or internal reference flexibility.

LTC2298CUP Features

• Dual 14-bit ADCs: Two integrated converters enable parallel processing of two input channels.
• 65Msps Sampling Rate: Ideal for high-speed signal processing in communications and imaging.
• Flexible Input Modes: Supports differential or single-ended inputs for versatile signal conditioning.
• Simultaneous Sampling: Ensures precise phase alignment for multi-channel systems (e.g., quadrature receivers).
• Low Power Operation: Optimized for 2.7V–3.4V supplies, reducing system power demands.
• Pipeline Architecture: Balances speed and accuracy with minimal latency.
• MSL 1 (Unlimited): Suitable for extended storage and handling without moisture sensitivity concerns.

LTC2298CUP Applications

• Communications Systems: Baseband I/Q sampling in software-defined radios (SDRs) or LTE/5G infrastructure.
• Medical Imaging: High-resolution data acquisition in ultrasound or MRI front-ends.
• Test & Measurement: Oscilloscopes or spectrum analyzers requiring synchronized multi-channel ADC performance.
• Military/Aerospace: Legacy systems demanding rugged, high-speed ADCs (note: ECCN obsolete status may restrict new designs).

Conclusion of LTC2298CUP

The LTC2298CUP excels in applications requiring dual-channel, high-speed, 14-bit resolution with low-power operation. Its simultaneous sampling and flexible input options make it a standout for synchronized multi-sensor systems. While obsolete, it remains relevant for maintenance of existing designs or where alternative ADCs fail to meet performance thresholds. Engineers should evaluate replacement options for new projects but can leverage this ADC’s proven performance in legacy or niche high-speed signal chains.