LTC1298IN8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1298IN8#PBF is a micropower, 12-bit successive approximation sampling analog-to-digital converter (ADC) in an 8-lead PDIP package. It features a software-selectable two-channel multiplexer and operates on a single 4.5V to 5.5V supply. The device draws typical supply current of 360µA at maximum sampling rates and powers down to 1nA when inactive. It includes an on-chip sample-and-hold, serial interface compatible with SPI/Microwire, and guarantees ±3/4 LSB max DNL. Key electrical parameters include 11.1 ksps sampling rate, 90 dB SFDR, and external reference capability.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with guaranteed ±3/4 LSB max differential nonlinearity (DNL)
• Two-channel input multiplexer for software-selectable channel switching
• Micropower consumption: 360µA typical active current, 1nA shutdown current
• Single 5V supply operation (4.5V to 5.5V range) with on-chip sample-and-hold

Analog To Digital Converters (ADC) Applications

• Battery-operated systems requiring low power consumption
• Remote data acquisition nodes
• Battery monitoring circuits
• Handheld terminal interfaces
• Temperature measurement systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IN8 corresponds to the 8-lead plastic DIP package and commercial temperature range (0°C to 70°C). Confirm RoHS compliance status through official manufacturer documentation or authorized distributor specifications prior to procurement. Ensure supply voltage constraints (4.5V–5.5V) match system design requirements.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1298 over the LTC1286 when a two-channel multiplexer is required instead of a single differential input. Note that the LTC1298 is restricted to a 4.5V–5.5V supply range, whereas the LTC1286 supports up to 9V. Ensure the application can tolerate the higher quiescent current compared to newer SAR ADCs if ultra-low power standby is critical.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1286/LTC1298 family of micropower sampling ADCs. The LTC1298 variant specifically integrates a 2-channel MUX, distinguishing it from the single-channel LTC1286. Both share identical core ADC architecture, serial interface protocols, and packaging options, differing primarily in input configuration and supply voltage flexibility.

Analog To Digital Converters (ADC) Replacement Considerations

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