This datasheet details the Analog Devices AD4112, a low power, low noise 24-bit sigma-delta analog-to-digital converter with integrated analog front end for…
The AD4112 is a single-supply, 24-bit sigma-delta ADC that integrates an analog front end (AFE) to support fully differential or single-ended high-impedance bipolar voltage inputs (±10 V) and 0 mA to 20 mA current inputs. It features up to 8 individual setups per channel, including programmable gain, offset calibration, and filtering options such as simultaneous 50 Hz and 60 Hz rejection.
The device operates with a maximum channel scan rate of 6.21 kSPS and includes an embedded 2.5 V low-drift internal reference to reduce external component count. It is housed in a 40-lead, 6 mm × 6 mm LFCSP package and supports SPI, QSPI, MICROWIRE, and DSP-compatible digital interfaces.
| Resolution | 24 Bits |
|---|---|
| Output Data Rate (ODR) | 1.25 SPS to 31.25 kSPS |
| Voltage Input Range | ±10 V |
| Current Input Range | 0 mA to 20 mA |
| Operating Temperature Range | -40°C to +105°C |
| Package Type | 40-lead LFCSP |
The maximum channel scan rate is 6.21 kSPS.
Yes, it includes an embedded 2.5 V low-drift band gap internal reference.
It supports SPI, QSPI, MICROWIRE, and DSP-compatible interfaces.