LTC1408CUH-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC1408CUH-12#PBF is a 12-bit, 6-channel analog-to-digital converter (ADC) featuring simultaneous sampling at a total rate of 600ksps. It operates on a single 3V supply and draws 5mA in active mode. The device provides six differential inputs with an internal 2.5V bandgap reference. Key performance metrics include a Signal-to-Noise Plus Distortion Ratio (SINAD) of 72dB at 100kHz input and a Common Mode Rejection Ratio (CMRR) of 83dB. Power consumption is reduced to 6µW in Sleep mode and 3.3mW in Nap mode. It utilizes a 3-wire SPI-compatible serial interface for data output.

Analog To Digital Converters (ADC) Feature Summary

• Six simultaneously sampled differential inputs with 100ksps throughput per channel
• Low power operation: 15mW active, 3.3mW Nap mode, 6µW Sleep mode
• Internal 2.5V reference with 83dB CMRR for noise rejection
• Configurable channel selection via SEL pins and bipolar/unipolar input range

Analog To Digital Converters (ADC) Applications

• Multiphase power measurement
• Multiphase motor control
• Data acquisition systems
• Uninterruptable power supplies

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #PBF indicates lead-free status. Confirm the CUH variant meets the commercial temperature range requirement of 0°C to 70°C. Ensure the QFN-32 package dimensions align with the PCB footprint design. Check for availability of the specific tape and reel or tube packaging options if required by assembly equipment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous multi-channel sampling is required within a low-power constraint. The 12-bit resolution and 600ksps aggregate rate suit moderate-speed applications. Consider the 3V single-supply operation for battery-powered designs. Verify that the source impedance allows for the specified 39ns acquisition time without external buffering.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1408 family of simultaneous sampling ADCs. The 'C' designation specifies the commercial temperature range, while 'UH' denotes the 32-pin QFN package. The '#PBF' suffix confirms compliance with lead-free manufacturing standards. It serves as a high-density alternative to slower SAR ADCs requiring multiple channels.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the LTC1408IUH-12#PBF, which offers an extended industrial temperature range (-40°C to 85°C). Other variants may differ in package type or temperature rating but maintain functional compatibility.