LTC1285IS8#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1285IS8#TRPBF is a 12-bit successive approximation analog-to-digital converter in an 8-lead SOIC package. It operates on a single supply voltage ranging from 2.7V to 6V with a typical supply current of 160μA during conversion and drops to 1nA in shutdown mode. The device features a differential analog input, an internal sample-and-hold circuit, and a serial interface compatible with SPI and Microwire protocols. Key electrical specifications include a maximum sampling rate of 7.5ksps, ±3/4LSB guaranteed DNL, and a signal-to-noise plus distortion ratio of 67dB at a 1kHz input frequency.

Analog To Digital Converters (ADC) Feature Summary

• Micropower consumption with automatic shutdown capability reducing standby current to 1nA
• Single-channel differential analog input configuration for precise signal measurement
• Integrated sample-and-hold circuitry with serial data output for microprocessor interfacing

Analog To Digital Converters (ADC) Applications

• Pen screen digitizing systems
• Battery-operated portable devices
• Remote data acquisition nodes
• Isolated data acquisition environments
• Temperature measurement circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm that the IS8 designation corresponds to the industrial temperature range requirements for your specific application environment. Ensure compatibility with the required serial communication protocol before finalizing procurement decisions.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1285 variant over the LTC1288 if a single differential input channel is sufficient for the design, as it offers lower power consumption. Consider the external reference requirement versus the LTC1288's integrated supply-tied reference. Evaluate the 7.5ksps sampling limit against system bandwidth needs to ensure adequate resolution without excessive power drain.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1285/LTC1288 family of 3V micropower sampling ADCs. It shares architectural similarities with the LTC1286 and LTC1298 but is optimized for lower voltage operation. The series is designed for applications requiring low cost and minimal power usage in battery-powered instrumentation.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.