This document introduces a method of combining high-precision sensors with low-cost ADCs that can use a $1000 sensor with a $1 ADC. This method uses the LTC2450 16-bit single-ended input, delta-sigma ADC, which has 2LSB INL, 2LSB offset, and 0.01% gain error, making it a perfect match for many high-end industrial sensors as well as a wide variety of data acquisition, measurement, control, and general purpose voltage monitoring applications.
The document introduces the LTC2450, a 16-bit, single-ended input, delta-sigma ADC in a 2mm x 2mm DFN package. It highlights that despite its small size and low cost ($1), it offers impressive DC specifications including 2LSB INL, 2LSB offset, and 0.01% gain error.
| Resolution | 16-bit |
|---|---|
| Package Type | 2mm x 2mm DFN package |
| INL Error | 2LSB |
| Offset Error | 2LSB |
| Gain Error | 0.01% |
| Average Sampling Current | 50nA |
It has a very low 50nA average sampling current.
The filter's effective bandwidth is approximately 30Hz.