Overview
The AD5420AREZ is a single-channel, 16-bit, serial input, current source digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is designed to meet the requirements of industrial process control applications, offering high precision and flexibility. It features a programmable current source output and supports various current ranges, including 4 mA to 20 mA, 0 mA to 20 mA, and an overrange function of 0 mA to 24 mA. The AD5420AREZ operates with a power supply range of 10.8 V to 40 V and has an output loop compliance of 0 V to AVDD − 2.5 V.
Key Specifications
| Parameter | Value | Unit | Description |
|---|---|---|---|
| Resolution | 16 Bits | - | Number of bits in the DAC |
| Total Unadjusted Error (TUE) | ±0.01% FSR | % FSR | Total unadjusted error over the full scale range |
| Output Current Range | 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA | mA | Programmable current output ranges |
| Power Supply Range | 10.8 V to 40 V | V | Operating voltage range |
| Output Loop Compliance | 0 V to AVDD − 2.5 V | V | Voltage range for output loop compliance |
| Temperature Range | −40°C to +85°C | °C | Operating temperature range |
| Package Type | 24-lead TSSOP and 40-lead LFCSP | - | Available package types |
| Serial Interface | SPI, MICROWIRE™, QSPI™, DSP compatible | - | Supported serial digital interfaces |
Key Features
- 12-/16-bit resolution and monotonicity
- Programmable current output ranges: 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA
- ±0.01% FSR typical total unadjusted error (TUE)
- ±3 ppm/°C typical output drift
- Flexible serial digital interface (SPI, MICROWIRE™, QSPI™, DSP compatible)
- On-chip output fault detection
- On-chip reference (10 ppm/°C maximum)
- Feedback/monitoring of output current
- Asynchronous clear function
- Power-on reset function ensuring a known state at power-up
Applications
- Process control
- Actuator control
- PLC (Programmable Logic Controllers)
- HART network connectivity
Q & A
- What is the resolution of the AD5420AREZ DAC?
The AD5420AREZ has a resolution of 16 bits. - What are the programmable current output ranges of the AD5420AREZ?
The device supports current output ranges of 4 mA to 20 mA, 0 mA to 20 mA, and an overrange function of 0 mA to 24 mA. - What is the power supply range for the AD5420AREZ?
The power supply range is from 10.8 V to 40 V. - What is the output loop compliance of the AD5420AREZ?
The output loop compliance is from 0 V to AVDD − 2.5 V. - What are the supported serial interfaces for the AD5420AREZ?
The device supports SPI, MICROWIRE™, QSPI™, and DSP compatible serial interfaces. - Does the AD5420AREZ have on-chip output fault detection?
Yes, the AD5420AREZ includes on-chip output fault detection. - What is the typical total unadjusted error (TUE) of the AD5420AREZ?
The typical TUE is ±0.01% FSR. - What is the operating temperature range of the AD5420AREZ?
The operating temperature range is from −40°C to +85°C. - What package types are available for the AD5420AREZ?
The device is available in 24-lead TSSOP and 40-lead LFCSP packages. - Does the AD5420AREZ support HART network connectivity?
Yes, the device supports HART network connectivity.
