LTC1298IS8#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1298IS8#TRPBF is a micropower, 12-bit successive approximation analog-to-digital converter (ADC) in an 8-lead SOIC 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 350µA at 11.1ksps sampling rate and powers down to 1nA when inactive. It includes an on-chip sample-and-hold, serial interface compatible with SPI/Microwire, and external reference capability. Key specifications include guaranteed ±3/4LSB max DNL, 90dB SFDR, and operation from -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 2-channel input multiplexer
• Micropower consumption: 350µA active, 1nA shutdown
• Single supply operation: 4.5V to 5.5V
• Serial interface compatible with SPI and Microwire
• Guaranteed monotonicity and ±3/4LSB max DNL

Analog To Digital Converters (ADC) Applications

• Battery-operated systems
• Remote data acquisition
• Battery monitoring
• Handheld terminal interface
• Temperature measurement
• Isolated data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the IS8 suffix indicates Industrial temperature range (-40°C to 85°C) and SOIC-8 tape and reel packaging. Confirm the #PBF designation ensures lead-free compliance. Cross-reference pinout for CH0, CH1, DIN, DOUT, CLK, CS/SHDN, GND, and VCC/VREF against target PCB footprint.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC1286 variant due to the integrated 2-channel multiplexer and fixed internal reference tied to VCC. Ensure supply voltage remains within 4.5V to 5.5V, as the LTC1298 does not support up to 9V like the LTC1286. Verify clock frequency requirements do not exceed 200kHz for optimal performance at 5V.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1286/LTC1298 family of micropower sampling ADCs. While sharing the same SAR architecture and 8-pin form factor, the LTC1298 is distinguished by its dual-channel MUX and restricted 5V-only supply range compared to the single-channel, wider-voltage LTC1286.

Analog To Digital Converters (ADC) Replacement Considerations

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