LTC1098CS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1098CS8#PBF is an 8-bit micropower successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a software-selectable 2-channel multiplexer and operates on a single 5V supply. The device draws 80μA maximum during conversion and drops to 1nA in shutdown mode. It supports sampling rates up to 33kHz with a 3-wire serial interface for data transfer. Packaged in an 8-lead plastic SOIC, it offers ±0.5LSB total unadjusted error over the temperature range.

Analog To Digital Converters (ADC) Feature Summary

• 8-bit resolution with 33kHz maximum sample rate
• Software-selectable 2-channel input multiplexer
• Micropower consumption: 80μA active, 1nA shutdown
• Direct 3-wire serial interface compatible with microprocessors

Analog To Digital Converters (ADC) Applications

• Battery-operated systems
• Remote data acquisition
• Battery monitoring and gas gauges
• Temperature measurement
• Isolated data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the component matches the specific package type and voltage rating required for the application. Confirm that the external reference voltage requirements align with the system design, as the LTC1098 requires an external reference or VCC connection depending on configuration.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring low power consumption and multiple analog inputs within an 8-bit resolution constraint. Ensure the system clock frequency does not exceed 500kHz at 5V operation. Consider the LTC1096 if a differential single-ended input is preferred instead of a multiplexer.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1096/LTC1098 family of micropower ADCs. The 'C' suffix indicates a commercial temperature range of 0°C to 70°C. The 'S8' denotes the 8-lead SOIC package. The '#PBF' suffix signifies a lead-free finish compliant with RoHS standards.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1098ACS8#TRPBF is a verified equivalent from the same series with identical electrical characteristics but differs in packaging format (tape and reel versus tube).

Analog To Digital Converters (ADC) FAQ

What is the wake-up time requirement for the LTC1098?

A 10μs wake-up time is required from the CS falling edge to the MSBF bit CLK falling edge to ensure correct conversion results.

How does the LTC1098 handle power down?

The device automatically powers down when the CS/SHDN pin is driven high, reducing supply current to a typical 1nA.

What is the maximum clock frequency for the LTC1098 at 5V?

The maximum clock frequency is 500kHz when operating at a 5V supply voltage.