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The ADS1245 is a 24-bit, delta-sigma analog-to-digital converter (ADC). It offers excellent performance and very low power in an MSOP-10 package and is well suited for demanding high-resoluTIon measurements, especially in portable and other space- and power-constrained systems.
The buffered input presents an impedance of 3G, minimizing measurement errors when using high-impedance sources. The ADS1245 is compaTIble with ADS1244 and offers a direct upgrade path for designs requiring higher input impedance.
A third-order delta-sigma () modulator and digital filter form the basis of the ADC. The analog modulator has a ±2.5V differenTIal input range. The digital filter rejects both 50Hz and 60Hz signals, completely settles in one cycle, and outputs data at 15 samples per second (SPS).
