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AD74412R Quad Channel Software Configurable I/O
Analog Devices' AD74412R provides four configurable input/output channels and a suite of diagnostic functions
Analog Devices' AD74412R is a quad-channel software-configurable input/output solution for building and process control applications. The AD74412R contains functionality for analog output, analog input, digital input, and resistance temperature detector (RTD) measurements integrated into a single chip solution with an interface compatible with the serial port interface (SPI).
The device features a 16-bit, Σ-∆ analog-to-digital converter (ADC) and four configurable, 13-bit digital-to-analog converters (DACs) to provide four configurable input/output channels and a suite of diagnostic functions.
There are several modes related to the AD74412R. These modes are voltage output, current output, voltage input, externally powered current input, loop-powered current input, external RTD measurement, digital input logic, and loop-powered digital input.
The AD74412R contains a high accuracy 2.5 V internal reference to drive the DACs and the ADC.
- Quad-channel software-configurable input/output circuit
- Screw terminals protected to ±40 V
- Line protectors to block power from the screw terminals to supplies
- Six configurable modes
- Voltage input
- Current input
- Voltage output
- Current output
- Digital input
- RTD measurement
- Internal 16-bit, Σ-∆ ADC with optional 50 Hz and 60 Hz rejection
- 13-bit monotonic DACs
- Charge pump for true zero voltage output
- Internal temperature sensor, 5°C accuracy
- On-chip diagnostics including open circuit and short-circuit detection
- Robust architecture
- SPI
- Temperature range: -40°C to +85°C
- 64-lead LFCSP
Applications
- Building control systems
- Process control
- Industrial automation
Eval Boards
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | EV-AD74412RSDZ | EVALUATION BOARD | 7 - Immediate | $177.79 | View Details |
AD74412R Quad Channel Software Configurable I/O
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | AD74412RBCPZ | QUAD CHANNEL FLEXI IO; 16-BIT AD | 0 - Immediate | $19.41 | View Details |
| | AD74412RBCPZ-REEL | QUAD CHANNEL FLEXI IO; 16-BIT AD | 0 - Immediate | $11.03 | View Details |
| | AD74412RBCPZ-RL7 | QUAD CHANNEL FLEXI IO; 16-BIT AD | 0 - Immediate | $19.41 | View Details |
Hong Kong, China