LTC1199LIMS8#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1199LIMS8#TRPBF is a 10-bit, switched-capacitor successive approximation register (SAR) 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 software-selectable 2-channel multiplexer and a 3-wire serial interface compatible with SPI and MICROWIRE protocols. Typical power dissipation is 2.2mW at full speed, utilizing automatic shutdown to reduce current linearly as the sample rate decreases.

Analog To Digital Converters (ADC) Feature Summary

• 10-bit resolution with 250ksps maximum sampling frequency
• Single 2.7V to 4V supply operation
• Software-selectable 2-channel input multiplexer
• Automatic power-down mode reduces supply current linearly at lower sample rates

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging for automated assembly. Confirm the 'L' designation corresponds to the 2.7V to 4V supply voltage range rather than the standard 5V version. Ensure the MSOP-8 package dimensions match the target PCB footprint requirements.

Analog To Digital Converters (ADC) Selection Notes

Select this component over the standard LTC1199 when system design requires operation below 4V. The LTC1199L series supports a minimum supply of 2.7V, whereas the non-L variant requires a minimum of 4V. Verify that the external clock frequency does not exceed 3.5MHz to maintain specified performance at 2.7V operation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1197/LTC1199 family of micropower ADCs. The LTC1199 variant specifically includes a 2-channel multiplexer, distinguishing it from the single-ended LTC1199. The 'L' suffix denotes the low-voltage version optimized for 2.7V supplies, offering pin compatibility with the higher voltage counterparts while reducing power consumption.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1199IS8#PBF serves as a direct pin-compatible replacement but operates on a 4V to 6V supply range. Designers must ensure the system supply voltage meets the minimum 4V requirement if substituting the IS8 variant for the LIMS8.