The AD573 is a complete 10-bit successive approximation analog-to-digital converter consisting of a DAC, voltage reference, clock, comparator, successive approximation register (SAR), and three-state output buffers—all fabricated on a single chip. No external components are required to perform a full accuracy 10-bit conversion in 20 µs. The AD573 incorporates advanced integrated circuit design and processing technologies.
The AD573 is a complete 10‑bit successive‑approximation analog‑to‑digital converter that integrates a DAC, voltage reference, clock, comparator, SAR and three‑state output buffers on a single chip. It operates from +5 V and –12 V to –15 V supplies and supports both unipolar (0 V to +10 V) and bipolar (‑5 V to +5 V) input ranges.
The document includes detailed specifications, absolute maximum ratings, ordering information, functional block diagrams, pin connections, calibration procedures, grounding considerations, and timing diagrams for interfacing the converter to microprocessors.
| Resolution | 10 bits |
|---|---|
| Relative Accuracy | +1 LSB (typ) |
| Conversion Time (typ) | 10 µs |
A positive CONVERT pulse at least 500 ns wide initiates the conversion cycle.
The AD573 is offered in 20‑pin ceramic DIP, 20‑pin plastic DIP, and 20‑pin leaded chip carrier packages.
Typical conversion time is 10 µs, with a maximum of about 30 µs depending on the version.