This is a description document about the ADC12030/ADC12H030 series of self-calibrating 12-bit plus sign serial I/O A/D converters.
The document provides a detailed description of National Semiconductor's self‑calibrating 12‑bit plus‑sign serial I/O A/D converters with multiplexed inputs and sample‑hold circuitry. It includes block diagrams, pin descriptions, electrical characteristics, and ordering information for the ADC12H030/ADC12H032/ADC12H034/ADC12H038 and ADC12030/ADC12032/ADC12034/ADC12038 families.
Key features include 12‑bit resolution, selectable input channels via an on‑chip multiplexer, and a range of operating temperature specifications. The datasheet also lists absolute maximum ratings, thermal resistance values, and both DC and AC electrical characteristics for each device variant.
| Resolution | 12‑bit plus sign |
|---|---|
| Thermal Resistance (ADC12H030) | 70 °C/W |
Yes, some of the devices may be obsolete and are provided for reference only; check the National Semiconductor website for current availability.