LTC2461CDD#PBF

Analog To Digital Converters (ADC) Overview

The LTC2461CDD#PBF is a single-ended, 16-bit delta-sigma analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features an integrated precision reference with a nominal output of 1.25V and a maximum temperature coefficient of 10ppm/°C for the C-grade variant. The device operates on a single supply voltage ranging from 2.7V to 5.5V and communicates via a 2-wire I²C interface. It achieves a sampling rate of 60 conversions per second with no latency, utilizing a proprietary input sampling scheme that reduces average input current to approximately 50nA. The component is housed in a 12-lead, 3mm × 3mm plastic DFN package.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with no missing codes and continuous internal offset/full-scale calibration
• Integrated 1.25V precision reference with ±10ppm/°C max drift (C-grade)
• Single-ended input range of 0V to VREF (1.25V) with ultra-low average input sampling current
• I²C interface supporting two specific addresses plus one global address for synchronization

Analog To Digital Converters (ADC) Applications

• System monitoring
• Environmental monitoring
• Direct temperature measurements
• Instrumentation
• Data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #PBF indicates lead-free finish and tape-and-reel packaging configuration. Confirm the 'C' grade designation corresponds to the 0°C to 70°C operating temperature range. Ensure the DD suffix matches the 12-lead 3mm × 3mm DFN package requirement for the specific design.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2461CDD#PBF for single-ended applications requiring a 0V to 1.25V input range. Choose this part over the LTC2463 if differential inputs are not required. Verify that the system power supply remains within the 2.7V to 5.5V range and that the I²C bus supports the required clock frequencies up to 400kHz.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2461/LTC2463 family of ultra-tiny, high-performance ADCs. The LTC2461 variant is specifically designed for single-ended inputs, whereas the LTC2463 supports differential inputs. Both share identical pinouts, software compatibility, and core specifications, differing primarily in their analog input configurations.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.