This datasheet describes the Analog Devices AD5421, a 16-bit serial input loop-powered 4 mA to 20 mA digital-to-analog converter designed for industrial…
The AD5421 is a complete loop-powered 4 mA to 20 mA DAC specifically designed to meet the needs of smart transmitter manufacturers in the industrial control field. It features a compact TSSOP and LFCSP package with an integrated voltage regulator, reference voltage source, fault alarm function, and SPI-compatible serial digital interface. This manual is written in Chinese.
| Resolution | 16 bit |
|---|---|
| Total Unadjusted Error (TUE) | 0.05% FSR max |
| Integral Nonlinearity (INL) | 0.0035% FSR max |
| Output Temperature Coefficient | 3 ppm/°C typ |
| Operating Temperature Range | -40°C to +105°C |
| Package Types | TSSOP and LFCSP |
The maximum Total Unadjusted Error (TUE) is 0.05% FSR.
Yes, it features a built-in voltage regulator that provides 1.8 V to 12 V regulated output.
Yes, it can be used with standard HART FSK protocol communication circuits without affecting rated performance.