PRODUCT DESCRIPTION
The AD420 is a complete digital to current loop output converter, designed to meet the needs of the industrial control market. It provides a high precision, fully integrated, low cost single-chip solution for generating current loop signals in a compact 24-lead SOIC or PDIP package.
   
FEATURES
    4 mA–20 mA, 0 mA–20 mA or 0 mA–24 mA Current Output
    16-Bit Resolution and Monotonicity
    ±0.012% Max Integral Nonlinearity
    ±0.05% Max Offset (Trimmable)
    ±0.15% Max Total Output Error (Trimmable)
    Flexible Serial Digital Interface (3.3 MBPS)
    On-Chip Loop Fault Detection
    On-Chip 5 V Reference (25 ppm/°C Max)
    Asynchronous CLEAR Function
    Maximum Power Supply Range of 32 V
    Output Loop Compliance of 0 V to VCC – 2.5 V
    24-Lead SOIC and PDIP Packages