AD7172-4BCPZ
ActiveANALOG TO DIGITAL CONVERTERS - ADC LOW POWER, WITH 4- OR 8-CHANNEL, 24-BIT, 31.25 KSPS, SIGMA-DELTA ADC WITH TRUE RAIL-TO-RAIL BUFFERS
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AD7172-4BCPZ
ActiveANALOG TO DIGITAL CONVERTERS - ADC LOW POWER, WITH 4- OR 8-CHANNEL, 24-BIT, 31.25 KSPS, SIGMA-DELTA ADC WITH TRUE RAIL-TO-RAIL BUFFERS
Technical Specifications
Parameters and characteristics for this part
| Specification | AD7172-4BCPZ |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | MUX-ADC |
| Data Interface | DSP, SPI |
| Input Type | Single Ended, Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 count |
| Number of Bits | 24 bits |
| Number of Inputs | 4, 8 |
| Operating Temperature (Max) | 105 °C |
| Operating Temperature (Min) | -40 °C |
| Package / Case | 32-WFQFN Exposed Pad, CSP |
| Package Length | 5 mm |
| Package Name | 32-LFCSP |
| Package Width | 5 mm |
| Reference Type | External, Internal |
| Sampling Rate (Per Second) | 31.25 kHz |
| Voltage - Supply, Analog (Max) | 5.5 V |
| Voltage - Supply, Analog (Min) | 2 V |
| Voltage - Supply, Digital (Max) | 5.5 V |
| Voltage - Supply, Digital (Min) | 2 V |
Pricing
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Description
General part information
AD7172-4 Series
The AD7172-4 is a low noise, low power, multiplexed, Σ-Δ analog-to-digital converter (ADC) with 4- or 8-channel (fully differential/single-ended) inputs for low bandwidth signals. The AD7172-4 has a maximum channel scan rate of 6.21 kSPS (161 μs) for fully settled data. The output data rates range from 1.25 SPS to 31.25 kSPS.The AD7172-4 integrates key analog and digital signal conditioning blocks to allow users to configure an individual setup for each analog input channel in use via the SPI. Integrated true rail-to-rail buffers on the analog inputs and reference inputs provide easy to drive high impedance inputs.The digital filter allows simultaneous 50 Hz and 60 Hz rejection at a 27.27 SPS output data rate. The user can switch between different filter options according to the demands of each channel in the application, with further digital processing functions such as offset and gain calibration registers, which are configurable on a per channel basis. General-purpose input/outputs (GPIOs) control external multiplexers synchronous to the ADC conversion timing. The specified temperature range is −40°C to +105°C.The AD7172-4 is in a 5 mm × 5 mm, 32-lead LFCSP.Note that, throughout this data sheet, the dual function pin names are referenced by the relevant function only.ApplicationsProcess control: PLC/DCS modulesTemperature and pressure measurementMedical and scientific multichannel instrumentationChromatography
