AD420ARZ-32-REEL

• Single-Channel 16-Bit Digital-to-Analog Converter
• SPI Serial Interface
• Single-Supply Operation from 12V to 32V, 15V Nominal
• Unipolar Output with 0.012 LSB Integral Nonlinearity
• 2.5 Ms Settling Time and 176 mW Maximum Power Dissipation
• 24-Pin SOIC package, -40C to 85C Operating Range

The Analog Devices AD420ARZ-32-REEL is a single-channel 16-bit digital-to-analog converter with a serial SPI interface, supplied in a 24-pin SOIC package. It runs from a single 12V to 32V supply at 15V nominal, dissipates up to 176 mW, and its unipolar output settles in 2.5 ms with an integral nonlinearity of 0.012 LSB. The high single-supply range and millisecond settling time are characteristic of a process-control output stage rather than a signal-chain converter. Note that the product title held in this catalog record describes a 16-bit D-type latch in a 48-SSOP, which does not match the recorded attributes for this part, and the record also marks it as containing lead while showing RoHS compliant; both items need catalog correction and the output configuration should be confirmed against the manufacturer datasheet.

High-voltage single-supply 16-bit converters such as the AD420ARZ-32-REEL form the analog output stage of industrial process control equipment: PLC and DCS analog output modules, valve and actuator positioners, variable-speed drive setpoints, and the output side of field transmitters. The 12V to 32V supply range is what lets the device be powered from the same 24V field supply that feeds the rest of the loop, removing the need for a separate low-voltage rail at the output. Millisecond-scale settling is ample in these applications, where the pneumatic or mechanical element being driven responds far more slowly than the converter. Sixteen-bit resolution is specified where setpoint granularity and long-term repeatability drive measurement accuracy across the plant.