This datasheet provides detailed information on the features and specifications of the AD7824/AD7828, including the operating principles, pin functions, electrical characteristics and application examples.
The AD7824 (4‑channel) and AD7828 (8‑channel) are high‑speed, multichannel 8‑bit analog‑to‑digital converters. They use a half‑flash conversion technique that provides a conversion time of about 2 µs per channel and include a built‑in track‑and‑hold function capable of handling signals up to 10 kHz.
The devices operate from a single 5 V supply, consume low power (≈50 mW typ), and offer a full‑scale input range of 0 V to 5 V (unipolar) or ±4 V (bipolar). Detailed specifications, timing diagrams, pin configurations, and performance curves are provided in the document.
| Resolution | 8 bits |
|---|---|
| Total Unadjusted Error | ±1 LSB (max) |
| Analog Input Voltage Range | 0 V to 5 V |
| Power Dissipation | 50 mW typ |
| Conversion Time (Mode 0) | up to 2.8 µs |
The conversion time is up to 2.8 µs per conversion in Mode 0.
The AD7824 provides 4 analog input channels, while the AD7828 provides 8 channels.
Both devices operate from a single 5 V supply.