ADS1217IPFBR
Active8-CHANNEL, 24-BIT ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBR
Active8-CHANNEL, 24-BIT ANALOG-TO-DIGITAL CONVERTER
Description
General part information
ADS1217 Series
The ADS1217 is a precision, wide dynamic range, delta-sigma, Analog-to-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 are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog Converter (DAC) 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 A/D conversion is accomplished with a 2nd-order delta-sigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric cancellation. The onboard current DACs operate independently with the maximum current set by an external resistor.
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS1217IPFBR |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | MUX-PGA-ADC |
| Data Interface | SPI |
| Features | PGA |
| Input Type | Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 count |
| Number of Bits | 24 bits |
| Number of Inputs | 8 |
| Operating Temperature (Max) | 85 °C |
| Operating Temperature (Min) | -40 °C |
| Package / Case | 48-TQFP |
| Package Length | 7 mm |
| Package Name | 48-TQFP |
| Package Width | 7 mm |
| Reference Type | External, Internal |
| Sampling Rate (Per Second) | 780 Hz |
| Voltage - Supply, Analog (Additional) | 5 V |
| Voltage - Supply, Analog (Max) | 3.3 V |
| Voltage - Supply, Analog (Min) | 2.7 V |
| Voltage - Supply, Analog (Typical) | 5 V |
| Voltage - Supply, Digital (Max) | 5.25 V |
| Voltage - Supply, Digital (Min) | 2.7 V |
Pricing
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