LTC1285IS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1285IS8#PBF is a 12-bit successive approximation analog-to-digital converter (ADC) 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 at 7.5ksps sampling rate. The device features a differential analog input and an external reference input pin. Key electrical specifications include a maximum integral nonlinearity error of ±2 LSB and a maximum differential nonlinearity error of ±3/4 LSB. The ADC supports a maximum clock frequency of 120kHz and includes an on-chip sample-and-hold circuit. It automatically powers down to a typical leakage current of 1nA when not converting.

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 floating signal measurement
• External reference input allowing ratiometric applications and reduced span operation
• On-chip serial port compatible with SPI and Microwire interfaces

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 IS8 corresponds to the industrial temperature range and SOIC-8 package variant. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations prior to integration. Ensure the ordering part number matches the exact pinout and electrical characteristics required for the design.

Analog To Digital Converters (ADC) Selection Notes

Select this component for designs requiring low power consumption and high resolution in a compact footprint. The differential input architecture is suitable for sensors requiring common-mode rejection. Consider the external reference requirement if precise voltage referencing is needed. Evaluate the serial interface compatibility with the target microcontroller before finalizing the selection.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1285/LTC1288 family of 3V micropower sampling 12-bit A/D converters. The LTC1285 variant specifically provides a single differential input channel, distinguishing it from the dual-channel multiplexed LTC1288. Both share similar power profiles and serial communication protocols within the Analog Devices portfolio.

Analog To Digital Converters (ADC) Replacement Considerations

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