LTC1419AIG#PBF

Analog To Digital Converters (ADC) Overview

The LTC1419AIG#PBF is a 14-bit, 800ksps sampling analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on ±5V supplies with a power dissipation of 150mW. The device features true differential inputs rejecting common mode noise, an internal 2.5V reference, and two shutdown modes. Key performance metrics include 81.5dB S/(N+D), 93dB THD at 100kHz input, and 95dB SFDR. It utilizes a successive approximation register architecture with no pipeline delay, offering a 20MHz full-power bandwidth and bipolar ±2.5V input range.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 800ksps sampling rate and 150mW power consumption
• High dynamic performance: 81.5dB SINAD, 93dB THD, and 95dB SFDR
• True differential inputs with 60dB CMRR and ±2.5V input range
• Integrated 2.5V precision reference with Nap and Sleep shutdown modes

Analog To Digital Converters (ADC) Applications

• Telecommunications
• Digital Signal Processing
• Multiplexed Data Acquisition Systems
• Spectrum Analysis
• Imaging Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free status and #TR for tape and reel packaging if required. Confirm the 'I' grade temperature range (-40°C to 85°C) matches system requirements. Ensure the SSOP-28 package fits the PCB footprint. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm current production status and availability constraints.

Analog To Digital Converters (ADC) Selection Notes

Select this component when upgrading from 12-bit systems requiring higher dynamic range without pipeline delay. The internal reference simplifies design but allows external reference override via the VREF pin. Consider the 20MHz bandwidth for undersampling applications. Verify source impedance compatibility; high impedance sources may require buffering to meet acquisition time specifications. Compare against the LTC1410 if lower resolution or different speed is sufficient.

Analog To Digital Converters (ADC) Part Context

The LTC1419 is a 14-bit derivative of the 12-bit LTC1410 family, sharing similar pinouts and functionality. It offers approximately 10dB improved dynamic range over 12-bit counterparts. The device is part of the Linear Technology (now Analog Devices) portfolio, designed for high-speed data acquisition where low distortion and no missing codes are critical. It competes in the high-performance SAR ADC market segment.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided datasheet. The LTC1419ACG#PBF and LTC1419AISW#PBF are alternative package/grade variants within the same series.