LTC2471IDD#PBF

Analog To Digital Converters (ADC) Overview

The LTC2471IDD#PBF is a 16-bit, single-ended delta-sigma analog-to-digital converter (ADC) manufactured by Analog Devices. It features an integrated precision reference with a maximum drift of 10ppm/°C and supports selectable output rates of 208sps or 833sps. The device operates on a single supply voltage ranging from 2.7V to 5.5V and communicates via an I²C interface. Key electrical specifications include a typical supply current of 3.5mA during conversion, a maximum sleep current of 2µA, and an input voltage range of 0V to VREF. It is housed in a 12-lead, 3mm × 3mm plastic DFN package.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with integral nonlinearity of ±2 LSB at 208sps and ±8.5 LSB at 833sps
• Integrated 1.25V precision reference with 10ppm/°C maximum temperature coefficient for the I-grade device
• Selectable output data rates: 208sps (default) or 833sps
• Single-ended input configuration with 0V to VREF input range
• Low power consumption: 3.5mA typical during conversion, 2µA maximum in sleep mode

Analog To Digital Converters (ADC) Applications

• System monitoring
• Environmental monitoring
• Direct temperature measurements
• Instrumentation
• Industrial process control
• Data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #PBF indicates lead-free finish and RoHS compliance as per manufacturer standards. Confirm the IDD suffix corresponds to the industrial temperature range of –40°C to 85°C. Ensure the DFN package type matches the required PCB footprint. Cross-reference the specific part number with official Analog Devices documentation to confirm availability and datasheet revisions before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2471 variant for single-ended input applications requiring a 0V to VREF range. Choose the LTC2473 if differential inputs are necessary. The 'I' grade designation is required for operations between –40°C and 85°C; use 'C' grade for 0°C to 70°C. The 'DD' suffix specifies the 12-lead DFN package. Consider the 208sps vs 833sps rate based on anti-aliasing filter requirements and system speed needs.

Analog To Digital Converters (ADC) Part Context

The LTC2471 is part of the LTC2471/LTC2473 family of low-power, high-precision ADCs. It shares pinout and software compatibility with the differential LTC2473 model. Both devices utilize a proprietary input sampling scheme to minimize average input current, simplifying external filter design. The family is designed for multiplexed applications due to single-cycle operation and auto-shutdown capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pin compatibility and electrical specifications against alternative 16-bit I²C ADCs if substitution is required.