LTC1197LIS8#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1197LIS8#TRPBF is a 10-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices. It operates on a single 2.7V to 4V supply and supports sampling rates up to 250ksps. The device features a differential analog input, an external reference pin, and a 3-wire serial interface compatible with SPI and Microwire protocols. Packaged in an 8-lead MSOP, it typically dissipates 2.2mW at full speed. The part includes an internal sample-and-hold circuit and automatic power-down functionality that reduces supply current linearly as the sample rate decreases.

Analog To Digital Converters (ADC) Feature Summary

• 10-bit resolution with a maximum sampling frequency of 250ksps
• Single 2.7V to 4V supply operation with typical power dissipation of 2.2mW
• Differential analog input with adjustable external reference voltage
• 3-wire serial I/O compatible with SPI and Microwire protocols

Analog To Digital Converters (ADC) Applications

• High-speed data acquisition systems
• Portable or compact instrumentation
• Low power or battery-operated instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the 'I' temperature grade designation matches the required operating range of -45°C to +85°C for the application environment. Ensure the 8-lead MSOP package footprint aligns with the PCB design specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1197L variant specifically for 2.7V to 4V supply applications, as standard LTC1197 parts require higher voltages. This model provides a differential input and external reference, distinguishing it from the multiplexed LTC1199L series. Verify that the 250ksps maximum sampling rate meets the system bandwidth requirements.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1197 family of 10-bit SAR ADCs. The 'L' suffix denotes the low-voltage version optimized for 2.7V operation, while the 'I' suffix specifies the industrial temperature range. The '#TRPBF' suffix identifies the tape and reel packaging format with lead-free compliance.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1199LIS8#TRPBF is a pin-compatible alternative within the same family, offering a 2-channel multiplexer instead of a differential input. Standard voltage variants such as the LTC1197IS8#TRPBF are not direct replacements due to different supply voltage requirements.