Overview
The AD4112BCPZ-RL7, produced by Analog Devices Inc., is a low-power, low-noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). This device integrates an analog front-end (AFE) for fully differential or single-ended, high impedance bipolar inputs, as well as current inputs. The AD4112 is designed to offer high precision and flexibility, making it suitable for a variety of industrial and measurement applications. It features proprietary iPassives™ technology and is factory calibrated to achieve a high degree of specified accuracy.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24-bit | |
| Maximum Channel Scan Rate | 6.21 kSPS (161 µs) | |
| Input Voltage Range | ±10 V (voltage inputs), 0 mA to 20 mA (current inputs) | |
| Internal Reference | 2.5 V, ±0.12% accuracy at 25°C, ±5 ppm/°C drift | |
| Power Supplies | AVDD = 3.0 V to 5.5 V, IOVDD = 2 V to 5.5 V | |
| Total Current Consumption | 3.9 mA | |
| Operating Temperature Range | −40°C to +105°C | |
| Package | 40-lead LFCSP (6 mm × 6 mm) |
Key Features
- Integrates proprietary iPassives™ technology for high precision performance.
- Supports fully differential or single-ended, high impedance bipolar inputs and current inputs.
- Embedded 2.5 V, low drift internal reference with output reference buffer.
- Digital filter with flexible settings, including simultaneous 50 Hz and 60 Hz rejection.
- Automatic channel sequencer for switching through enabled channels.
- Single power supply operation, suitable for galvanically isolated applications.
- Low power consumption and low noise operation.
Applications
- Process control and automation.
- PLC and DCS modules.
- Instrumentation and measurement systems.
Q & A
- What is the resolution of the AD4112BCPZ-RL7?
The AD4112BCPZ-RL7 has a resolution of 24 bits.
- What is the maximum channel scan rate of the AD4112BCPZ-RL7?
The maximum channel scan rate is 6.21 kSPS (161 µs) for fully settled data.
- What is the input voltage range for the AD4112BCPZ-RL7?
The input voltage range is ±10 V for voltage inputs and 0 mA to 20 mA for current inputs.
- Does the AD4112BCPZ-RL7 have an internal reference?
Yes, it has a 2.5 V internal reference with ±0.12% accuracy at 25°C and ±5 ppm/°C drift.
- What are the power supply requirements for the AD4112BCPZ-RL7?
The power supplies required are AVDD = 3.0 V to 5.5 V and IOVDD = 2 V to 5.5 V.
- What is the operating temperature range of the AD4112BCPZ-RL7?
The operating temperature range is −40°C to +105°C.
- What type of package does the AD4112BCPZ-RL7 come in?
The AD4112BCPZ-RL7 is housed in a 40-lead LFCSP package (6 mm × 6 mm).
- Does the AD4112BCPZ-RL7 support galvanically isolated applications?
Yes, it operates with a single power supply, making it suitable for galvanically isolated applications.
- What kind of digital interface does the AD4112BCPZ-RL7 support?
The AD4112BCPZ-RL7 supports 3-wire or 4-wire serial digital interfaces, including SPI, QSPI, MICROWIRE, and DSP compatible interfaces.
- Is there an evaluation board available for the AD4112BCPZ-RL7?
Yes, the EVAL-AD4112SDZ is a full-featured evaluation board available for evaluating the AD4112.
