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. It offers fast conversion speed, high accuracy, and low cost.
The AD573 is a 10‑bit successive‑approximation analog‑to‑digital converter that includes a DAC, voltage reference, clock, comparator, SAR and three‑state output buffers in a single monolithic chip. It operates from +5 V and –12 V to –15 V supplies and offers both unipolar (0 V to +10 V) and bipolar (–5 V to +5 V) input configurations.
The device is offered in three package types (20‑pin ceramic DIP, plastic DIP, and leaded chip carrier) and in temperature‑graded versions (0 °C to +70 °C and –55 °C to +125 °C). Detailed specifications include 10‑bit resolution, ±1 LSB relative accuracy, conversion times as low as 10 µs, and configurable power‑supply ranges.
| Resolution | 10 bits |
|---|---|
| Temperature Range (J/K versions) | 0 °C to +70 °C |
For unipolar operation (0 V to +10 V) short the bipolar offset control pin to digital common; for bipolar operation (–5 V to +5 V) leave the offset pin open.
Conversion time ranges from 10 µs to 30 µs depending on the device version, with 10 µs typical for the fastest version.
The AD573 is offered in a 20‑pin hermetically sealed ceramic DIP, a 20‑pin plastic DIP, and a 20‑pin leaded chip carrier.