LTC1418CG#PBF

Analog To Digital Converters (ADC) Overview

The LTC1418CG#PBF is a low power, 200ksps, 14-bit A/D converter manufactured by Analog Devices Inc. It features selectable 14-bit parallel or serial data output formats and operates from a single 5V or ±5V supply. The device integrates a high-performance sample-and-hold circuit, a precision reference, and internal timing to minimize external component requirements. Key electrical specifications include ±1.25LSB maximum integral nonlinearity (INL), ±1LSB maximum differential nonlinearity (DNL), and no missing codes over the operating temperature range. Typical AC performance metrics are an 81.5dB signal-to-noise plus distortion ratio and –94dB total harmonic distortion at the Nyquist input frequency of 100kHz.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 200ksps sampling rate
• Selectable parallel or serial (SPI/MICROWIRE compatible) I/O
• Integrated sample-and-hold, precision reference, and internal clock
• Low power dissipation of 15mW typical with Nap and Sleep shutdown modes

Analog To Digital Converters (ADC) Applications

• Remote data acquisition systems
• Battery operated systems
• Digital signal processing
• Isolated data acquisition systems
• Medical instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix #PBF indicates lead-free finish compliance. Confirm the package type matches the required 28-lead plastic SSOP form factor. Ensure the commercial temperature grade (C) meets the application's operational range of 0°C to 70°C. Check for RoHS3 status in the material declaration before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a low-power SAR ADC with flexible digital interface options is required. The integrated 2.5V reference and 4.096V COMPREF pin simplify biasing for unipolar inputs ranging from 0V to 4.096V. For bipolar applications requiring ±2.048V input ranges, ensure the system provides ±5V supplies. Verify that the source impedance allows for the specified 1µs acquisition time without additional buffering.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1418 family of low-power, 14-bit successive approximation register analog-to-digital converters. The 'CG' designation specifies the commercial temperature range (0°C to 70°C) and the 28-lead SSOP package. Other variants in the series include industrial temperature grades and PDIP packages.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: LTC1418ACG#PBF.