O'Reilly logo

Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 342

Resolving very small temperature differences with a delta-sigma ADC

Derek Redmayne

Abstract

The use of the LTC2402, a 2-channel 24-bit, No Latency Delta-Sigma analog-to-digital converter, to resolve very small temperature differences is described.

Keywords

Analog-to-digital converter

platimum RTD

LTC2402

The LTC2402, a 2-channel 24-bit, No Latency Delta-Sigma ADC, is well-suited to differential temperature sensing using a number of different sensors. Extremely good matching between channels allows two absolute temperature measurements to be compared in order to determine the differential or gradient between two points. In the circuits shown below, the LTC2402, with averaging, can resolve a temperature differential of a few ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required