LTC2486IDE#PBF

Analog To Digital Converters (ADC) Overview

The LTC2486IDE#PBF is a 16-bit, 2- or 4-channel delta-sigma analog-to-digital converter featuring Easy Drive technology. It operates on a single supply voltage ranging from 2.7V to 5.5V and utilizes a 14-lead plastic DFN package (4mm × 3mm). The device supports programmable gain settings from 1 to 256 and includes an integrated high-accuracy temperature sensor with 1/2°C resolution. Electrical specifications include 0.6µV RMS noise, 2ppm integral nonlinearity, and 1ppm offset error. The component functions within an industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• No Latency Delta-Sigma architecture ensures digital filter settling in a single cycle after channel selection changes.
• Easy Drive technology enables rail-to-rail inputs with zero differential input current, allowing direct digitization of high impedance sensors.
• Integrated programmable gain amplifier offers gain steps from 1 to 256.
• Configurable line frequency rejection modes for 50Hz, 60Hz, or simultaneous 50Hz/60Hz.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring temperature compensation.
• Direct sensor digitizers for high impedance sources.
• Instrumentation applications utilizing precision measurement.
• Industrial process control environments.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm lead-free finish and tape-and-reel packaging options. Confirm that the selected variant matches the required operating temperature range for the intended application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing circuits requiring high DC accuracy with minimal external buffering. The internal oscillator simplifies clocking requirements, while the wide common-mode input range accommodates signals from GND to VCC without level shifting.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2486 family of No Latency Delta-Sigma ADCs. The 'I' designation indicates the extended industrial temperature grade (-40°C to 85°C), distinguishing it from commercial variants. The '#PBF' suffix denotes a lead-free finish compliant with RoHS standards.

Analog To Digital Converters (ADC) Replacement Considerations

Consult Analog Devices marketing for parts specified with wider operating temperature ranges beyond the standard industrial limits defined for this model.

Analog To Digital Converters (ADC) FAQ

How does Easy Drive technology benefit high impedance sensors?

It eliminates dynamic input current errors through automatic cancellation of differential input current, allowing large external source impedances and rail-to-rail input signals to be directly digitized.

What is the resolution of the integrated temperature sensor?

The integrated temperature sensor offers 1/2°C resolution and 2°C absolute accuracy.

Can the output data rate be doubled?

Yes, the device can be configured to double its output rate using the 2x Speed Mode, which reduces power consumption while maintaining performance.