Precision 24-bit DS ADCs are growing in the heat and cold meter market as they achieve higher temperature reading resolution and accuracy than the traditional Slope ADC approach. The ADS1220 DS ADC family supports multiple 2-wire or 4-wire PT sensors and allows the trade-off between power consumption versus resolution and accuracy. The fast start-up time enables the power duty cycling of these devices, and the low power consumption makes them suitable for battery-powered meters.