LTC1855CG#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1855CG#TRPBF is an 8-channel, 14-bit analog-to-digital converter (ADC) operating at a sampling rate of 100ksps. It features a single 5V supply and a software-programmable multiplexer supporting single-ended or differential inputs with ±10V bipolar range. The device includes fault protection to ±30V on all channels. Key electrical specifications include ±1.5LSB integral nonlinearity (INL), 83dB SINAD, and 40mW power dissipation in active mode. It utilizes SPI/MICROWIRE compatible serial I/O and offers Nap and Sleep shutdown modes for reduced power consumption.

Analog To Digital Converters (ADC) Feature Summary

• 8-Channel Multiplexer: Supports single-ended or differential configurations with ±30V overvoltage protection.
• High Accuracy: 14-bit resolution with ±1.5LSB INL and 83dB SINAD at 1kHz input frequency.
• Low Power Operation: Consumes 40mW in active mode; reduces to 27.5mW in Nap mode and 40µW in Sleep mode.
• Integrated Reference: Onboard precision 2.5V reference with internal clock trimmed for 5µs maximum conversion time.

Analog To Digital Converters (ADC) Applications

• Industrial Process Control
• Multiplexed Data Acquisition Systems
• High Speed Data Acquisition for PCs
• Digital Signal Processing

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type is SSOP-28 and the temperature grade is Commercial (C range: 0°C to 70°C). Confirm the suffix #TRPBF indicates tape and reel packaging and lead-free compliance. Ensure the source document matches Analog Devices datasheet 185456fa for accurate parameter validation.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1855 variant specifically for 14-bit resolution requirements, as opposed to the 12-bit LTC1854 or 16-bit LTC1856. Verify that the application requires the specific ±1.5LSB INL specification. Ensure the system can accommodate the 28-pin SSOP package and 5V supply voltage constraints.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1854/1855/1856 family of low-power, multi-channel ADCs from Analog Devices. The 'CG' designation identifies the commercial temperature range and SSOP package. The '#TRPBF' suffix specifies tape-and-reel shipping and lead-free material composition, distinguishing it from tube-packaged or non-lead-free variants.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pin compatibility and electrical specifications if considering alternative manufacturers or different bit-resolution models within the same family.