LTC1419AISW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1419AISW#PBF is a 14-bit, 800ksps sampling analog-to-digital converter (ADC) housed in a 28-lead SSOP package. It operates from ±5V supplies with a typical power dissipation of 150mW. The device features a true differential input sample-and-hold circuit with a 20MHz full-power bandwidth and a ±2.5V input range. Key performance metrics include an 81.5dB signal-to-(noise + distortion) ratio at 100kHz input and a 93dB total harmonic distortion figure. It integrates a precision 2.5V internal reference and offers two digitally selectable shutdown modes: nap and sleep.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes and 800ksps sampling rate
• True differential inputs providing 60dB common mode rejection
• Integrated 2.5V internal reference with ±15ppm/°C temperature coefficient
• Nap and Sleep shutdown modes for low power operation

Analog To Digital Converters (ADC) Applications

• Telecommunications
• Digital Signal Processing
• Multiplexed Data Acquisition Systems
• High Speed Data Acquisition
• Spectrum Analysis

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'A' grade designation ensures specifications are met across the extended industrial temperature range of -40°C to +85°C. Confirm the '#PBF' suffix indicates lead-free compliance and RoHS adherence. Ensure the SW package variant matches the required PCB footprint for 28-lead SSOP mounting.

Analog To Digital Converters (ADC) Selection Notes

Select this component when bipolar input signals within the ±2.5V range require high dynamic range performance. The differential architecture is suitable for rejecting common-mode noise in noisy environments. Verify that the system can accommodate the required ±5V supply rails and interface with the 14-bit parallel digital output bus.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1419 family of successive approximation register ADCs. The AISW suffix specifically denotes the industrial temperature grade (-40°C to +85°C) and the 28-lead plastic SSOP package. Other variants in the series include commercial grades and SOIC package options.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC1419ACSW#PBF for commercial temperature ranges or the LTC1419CG#PBF for SSOP packages with different thermal characteristics. Ensure thermal management aligns with the specific junction-to-ambient resistance of the chosen package.