LTC1285CS8#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1285CS8#TRPBF is a micropower, 12-bit successive approximation analog-to-digital converter (ADC) housed in an 8-lead SOIC package. It operates on a single supply voltage ranging from 2.7V to 6V and typically draws 160μA during conversion at a sampling rate of 7.5ksps. The device features a differential analog input, an internal sample-and-hold circuit, and automatic power-down functionality that reduces supply current to approximately 1nA when inactive. Data transfer occurs via a synchronous serial interface compatible with SPI and Microwire protocols.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 12-bit resolution with guaranteed maximum differential nonlinearity of ±3/4LSB
• Automatic shutdown capability reducing quiescent current to typical 1nA levels
• Single-ended or differential input configurations with on-chip sample-and-hold
• Synchronous serial interface supporting standard microprocessor communication protocols

Analog To Digital Converters (ADC) Applications

• Battery-operated systems requiring low power consumption
• Remote data acquisition nodes
• Isolated data acquisition applications
• Temperature measurement circuits
• Pen screen digitizing interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging configuration. Confirm the BC grade designation matches required linearity specifications for the target application. Ensure compatibility with existing PCB footprints for the SO-8 package style before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component for designs requiring high resolution with minimal active power draw. The differential input architecture allows direct connection to sensors without external gain stages. Consider the 2.7V minimum supply voltage constraint when designing battery-powered systems. Verify clock frequency requirements do not exceed the 120kHz maximum limit for optimal performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1285/LTC1288 family of 3V micropower sampling ADCs. The LTC1285 variant specifically provides a single differential channel, whereas the LTC1288 offers a two-channel multiplexer. Both share identical pinouts and core conversion architectures within the 8-pin plastic package form factor.

Analog To Digital Converters (ADC) Replacement Considerations

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