LTC2308CUF#PBF

Analog To Digital Converters (ADC) Overview

The LTC2308CUF#PBF is a low noise, 12-bit successive approximation register (SAR) analog-to-digital converter featuring an 8-channel multiplexer and a sampling rate of 500ksps. It operates from a single 5V supply with a typical current draw of 3.5mA at full speed. The device includes an internal 2.5V reference and supports SPI/MICROWIRE compatible serial interfaces with SCK frequencies up to 40MHz. It is housed in a 24-lead 4mm x 4mm QFN package and functions within a temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-Bit Resolution with guaranteed no missing codes
• 500ksps Sampling Rate with internal conversion clock
• Low Noise Performance: SINAD = 73.3dB, THD = –89.5dB
• Auto-Shutdown Modes: Nap (0.9mW) and Sleep (35µW)
• Internal 2.5V Reference and 8-Channel Multiplexer

Analog To Digital Converters (ADC) Applications

• High Speed Data Acquisition
• Industrial Process Control
• Motor Control
• Accelerometer Measurements
• Battery Operated Instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging and tube shipping format. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the QFN-24 footprint matches the PCB layout requirements for the 4mm x 4mm plastic package.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-channel input multiplexer is required alongside high-speed 12-bit conversion. The internal reference simplifies design by reducing external component count. Consider the separate OVDD supply (2.7V to 5.25V) if interfacing with lower voltage digital logic than the 5V AVDD/DVDD supplies.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2308 family of SAR ADCs. The CU suffix denotes the commercial temperature grade (0°C to 70°C), while the IUF variant covers industrial temperatures (-40°C to 85°C). The #PBF suffix specifies lead-free RoHS compliance and tube packaging, distinct from the TRPBF tape-and-reel option.

Analog To Digital Converters (ADC) Replacement Considerations

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