LTC1199LCS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1199LCS8#PBF is a 10-bit, 250ksps successive approximation register (SAR) analog-to-digital converter in an 8-lead MSOP package. It operates on a single 2.7V to 4V supply with typical power dissipation of 2.2mW at full speed. The device features a software-selectable 2-channel multiplexer and an internal reference tied to VCC. It utilizes a synchronous serial interface compatible with SPI and MICROWIRE protocols. Key electrical parameters include a maximum sampling frequency of 210kHz at 2.7V, a signal-to-noise plus distortion ratio of 58dB, and a total harmonic distortion of -60dB.

Analog To Digital Converters (ADC) Feature Summary

• 10-bit resolution with up to 250ksps sampling rate on a single 2.7V supply
• Integrated 2-channel input multiplexer with internal VCC-referenced voltage
• Synchronous 3-wire or 4-wire serial interface compatible with SPI/MICROWIRE
• Automatic power-down mode reduces supply current linearly with sample rate

Analog To Digital Converters (ADC) Applications

• Portable or compact instrumentation systems
• Battery-operated measurement devices
• High-speed data acquisition in low-power environments
• Ratiometric applications requiring direct connection to signal sources

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'LCS8' corresponds to the commercial temperature range (0°C to 70°C) and MSOP-8 package as defined in the Analog Devices ordering guide. Confirm that the internal reference configuration matches system requirements, as the LTC1199L lacks an external reference pin unlike the LTC1197L variant.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 10-bit ADC is required with a single-ended or differential 2-channel input capability under a 2.7V to 4V supply constraint. Ensure the host microcontroller supports the required serial clock frequencies (up to 3.5MHz) and can handle the half-duplex data exchange timing. Consider the LTC1197L if an external reference or differential-only input is preferred over the multiplexed architecture.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1197/LTC1199 family of switched-capacitor SAR ADCs. The LTC1199L variant is distinguished by its integrated 2-channel multiplexer and internal reference, whereas the LTC1197L offers a differential input with an external reference pin. Both share the same pinout and low-power automatic shutdown characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

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