Overview
The ADF4112BCPZ-RL7 from Analog Devices Inc. is not the correct model for the described component. Instead, the AD4112 is the relevant model, which is a low power, low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). It integrates an analog front end (AFE) for fully differential or single-ended, high impedance bipolar inputs, and current inputs. The AD4112 is designed for applications requiring high precision and flexibility in signal conditioning and data acquisition.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 bits | |
| Input Range (Voltage) | ±10 V | |
| Input Range (Current) | 0 mA to 20 mA | |
| Channel Scan Rate | 6.21 kSPS (161 µs) | |
| Internal Reference | 2.5 V, ±5 ppm/°C drift | |
| Power Supply | AVDD: 3.0 V to 5.5 V, IOVDD: 2 V to 5.5 V | |
| Operating Temperature Range | −40°C to +105°C | |
| Package | 40-lead, 6 mm × 6 mm LFCSP |
Key Features
- Low power and low noise operation
- Integration of analog front end (AFE) for differential or single-ended inputs and current inputs
- Flexible digital filter settings, including simultaneous 50 Hz and 60 Hz rejection
- Automatic channel sequencer for switching through enabled channels
- Embedded 2.5 V, low drift internal reference with output reference buffer
- Proprietary iPassives™ technology for high precision performance
- Single power supply operation, suitable for galvanically isolated applications
- Support for various serial digital interfaces (SPI, QSPI, MICROWIRE, DSP compatible)
Applications
- Process control and PLC/DCS modules
- Instrumentation and measurement systems
- Industrial automation and control systems
- High-precision data acquisition systems
Q & A
- What is the resolution of the AD4112 ADC?
The AD4112 has a resolution of 24 bits.
- What are the input voltage and current ranges of the AD4112?
The input voltage range is ±10 V, and the input current range is 0 mA to 20 mA.
- What is the maximum channel scan rate of the AD4112?
The maximum channel scan rate is 6.21 kSPS (161 µs) for fully settled data.
- What is the accuracy of the internal reference of the AD4112?
The internal reference has an accuracy of ±5 ppm/°C drift.
- What are the power supply requirements for the AD4112?
The AD4112 requires AVDD: 3.0 V to 5.5 V and IOVDD: 2 V to 5.5 V.
- What is the operating temperature range of the AD4112?
The operating temperature range is −40°C to +105°C.
- What package type is the AD4112 available in?
The AD4112 is housed in a 40-lead, 6 mm × 6 mm LFCSP package.
- Does the AD4112 support multiple serial digital interfaces?
Yes, it supports SPI, QSPI, MICROWIRE, and DSP compatible interfaces.
- What technology is used to achieve high precision performance in the AD4112?
The AD4112 uses Analog Devices' proprietary iPassives™ technology.
- Is the AD4112 suitable for galvanically isolated applications?
Yes, it operates with a single power supply, making it suitable for galvanically isolated applications.
