LTC2309CUF#PBF

Analog To Digital Converters (ADC) Overview

The LTC2309CUF#PBF is an 8-channel, 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a 2-wire I2C compatible serial interface and operates from a single 5V supply. The device integrates a precision internal reference, an 8-channel multiplexer, and a fully differential sample-and-hold circuit. Key electrical parameters include a throughput rate of 14ksps, a typical signal-to-noise ratio (SNR) of 73.4dB at 1kHz input, and a low power consumption of 1.5mW at 1ksps sampling rate. It is housed in a 24-lead 4mm × 4mm plastic QFN package with an operating temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-Bit Resolution with guaranteed no missing codes
• Low Power: 1.5mW at 1ksps, 35µW Sleep Mode
• Internal Reference and 8-Channel Multiplexer
• 2-Wire I2C Compatible Serial Interface

Analog To Digital Converters (ADC) Applications

• Industrial Process Control
• Motor Control
• Accelerometer Measurements
• Battery-Operated Instruments
• Power Supply Monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #PBF indicates tube packaging for the LTC2309CUF variant. Confirm the temperature grade 'C' corresponds to the 0°C to 70°C range as specified in the order information table. Ensure compatibility with the 24-lead QFN footprint during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2309CUF#PBF when a 0°C to 70°C industrial temperature range is sufficient. Choose this part over the 'I' or 'H' grades if cost optimization is required for commercial applications. Verify that the 5V single-supply operation aligns with the system power architecture.

Analog To Digital Converters (ADC) Part Context

The LTC2309CUF#PBF belongs to the LTC2309 family of 12-bit SAR ADCs. It shares functional characteristics with other variants like the LTC2309IUF#PBF but differs in temperature rating and package availability. The 'CUF' designation specifically identifies the commercial grade device in the 24-lead QFN package.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same package and pinout include the LTC2309IUF#PBF for extended temperature ranges. Cross-family substitution requires verification of I2C compatibility and pin configuration.