Features: · 24 BITS NO MISSING CODES· 0.0015% INL· 22 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)· PGA FROM 1 TO 128· SINGLE CYCLE SETTLING MODE· PROGRAMMABLE DATA OUTPUT RATES UP TO 1kHz· ON-CHIP 1.25V/2.5V REFERENCE· EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 2.5V· ON-CHIP CALIBRATI...
ADS1216: Features: · 24 BITS NO MISSING CODES· 0.0015% INL· 22 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)· PGA FROM 1 TO 128· SINGLE CYCLE SETTLING MODE· PROGRAMMABLE DATA OUTPUT RATES UP TO 1k...
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The ADS1216 is a precision, wide dynamic range, delta-sigma, Analogto- Digital (A/D) converter with 24-bit resolution operating from 2.7V to 5.25V supplies. The delta-sigma, A/D converter provides up to 24 bits of no missing code performance and effective resolution of 22 bits.
The eight input channels of ADS1216 are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burn out current sources are provided that allow for the detection of an open or shorted sensor. An 8- bit Digital-to-Analog (D/A) converter provides an offset correction with a range of 50% of the FSR (Full-Scale Range).
The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The ADS1216 A/D conversion is accomplished with a second-order deltasigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric cancellation. The onboard current DACs (Digital-to Analog Converters) operate independently with the maximum current set by an external resistor.
The serial interface is SPI compatible. Eight bits of digital I/O are also provided that can be used for input or output. The ADS1216 is designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.