Analog Devices Inc. AD411x Integrated ±10V & 0-20mA AFE; 24-Bit SD ADC
Analog Devices AD411x Low Power 24-bit Analog to Digital Converters (ADCs) are low noise, sigma-delta (Σ-Δ) converters. These ADCs integrate an Analog Front End (AFE) for fully differential or single-ended inputs. The AD411x ADCs offer ≥1MΩ bipolar high impedance, ±10V voltage inputs, and 0mA to 20mA current inputs. These ADCs also integrate key analog and digital signal conditioning blocks to configure eight individual setups for each analog input channel in use.
The AD411x ADCs feature a maximum channel scan rate of 6.2kS/s (kilo samples per second) (161μs) for fully settled data. The precision performance of the AD411x ADCs is achieved by integrating the proprietary iPassives™ technology from Analog Devices Inc. The AD4111 series ADC has the unique feature of open wire detection on the voltage inputs for system level diagnostics using a single 5V or 3.3V power supply. The AD411x ADCs operating temperature range is from −40°C to 105°C. These ADCs are housed in a 40-lead, 6mm × 6mm LFCSP package. The AD411x ADCs find their applications in Programmable Automation Controller (PLC) and Distributed Control System (DCS) modules.
Features
- 24-bit ADCs with integrated analog front end:
- Up to 6.2kS/s (161μs) per channel
- 16 noise-free bits at 1kS/s per channel
- 85dB rejection of 50Hz and 60Hz at 20S/s per channel
- ±10V voltage with four differential or eight single-ended inputs:
- ≥1MΩ impedance
- 60Ω impedance, 0mA to 20mA current inputs, four single-ended
- Internal or external clock
- Power supplies:
- 3V to 5.5V AVDD
- 2V to 5.5V IOVDD
- 3.9 mA total IDD
- -40°C to 105°C operating temperature range
- 3-wire or 4-wire serial digital interface (Schmitt trigger on SCLK) that is SPI, QSPI, MICROWIRE, and DSP compatible
Applications
- Process control
- PLC modules
- DCS modules
Videos
Associated Tools
Analog Devices Inc. AD4111 ADC Evaluation Kit
Evaluates AD4111 24-bit ADC and features ±10V input voltage range with open wire detection.
Analog Devices Inc. AD4112 Low Power 24-bit ADC Evaluation Kit
Evaluates AD4112 24-bit ADC, features ±10V input voltage range, and 4 current channels.
Analog Devices Inc. EVAL-AD4110-1SDZ Evaluation Board
Designed to quickly and easily demonstrate the AD4110-1 analog front end (AFE).
AD4111 Block Diagram
AD4112 Block Diagram
Mechanical Dimensions
Articles
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