LTC1197LIMS8#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1197LIMS8#TRPBF is a 10-bit successive approximation analog-to-digital converter (ADC) in an 8-lead MSOP package. It operates on a single 2.7V to 4V supply with a maximum sampling rate of 250ksps. The device features a differential analog input and an adjustable external reference pin, supporting spans down to 200mV. Typical power dissipation is 2.2mW at full speed. It utilizes a 3-wire serial interface compatible with SPI and Microwire protocols and includes automatic shutdown circuitry that reduces supply current linearly as the sample rate decreases.

Analog To Digital Converters (ADC) Feature Summary

• 10-bit resolution with up to 250ksps sampling rate
• Differential analog input with adjustable external reference
• Single 2.7V to 4V supply operation
• Automatic power-down reducing current linearly with sample rate
• 3-wire serial I/O compatible with SPI and Microwire

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 suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the 'L' designation corresponds to the 2.7V to 4V supply range variant rather than the standard 4V to 9V version. Ensure the IMS8 package matches the required PCB footprint for 8-lead MSOP components.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high speed-to-power efficiency in low voltage environments. The differential input allows measurement of signals floating on DC common mode voltages. Choose this part over the non-L variants if the system supply is limited to 2.7V–4V. Verify that the external reference voltage meets the minimum span requirements for the desired resolution.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1197 family of 10-bit switched-capacitor ADCs. The IMS8 suffix denotes the MSOP-8 surface mount package. The 'L' variant is optimized for lower voltage operation compared to the standard LTC1197. It serves as a 10-bit upgrade to older 8-bit devices like the LTC1196/LTC1198 while maintaining similar package constraints.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1197LIMS8#TRPBF is pin-compatible with the LTC1199L series, though the latter includes a multiplexer and lacks an external reference pin. Standard LTC1197/1199 parts are not direct replacements due to higher minimum supply voltage requirements.