The AD7823 is an 8-bit ADC with a conversion time of 4μs, operating voltage range of 2.7V to 5.5V. It is available in an 8-lead microSOIC/DIP package and is suitable for low power, handheld portable applications requiring 8-bit accuracy analog-to-digital conversion.
The AD7823 is an 8‑bit successive‑approximation ADC offered in 8‑lead microSOIC, SOIC and DIP packages. It operates from a single 2.7 V to 5.5 V supply and features inherent track‑and‑hold, a fast two‑wire serial interface, and an automatic power‑down mode for battery‑powered applications.
The device provides a typical conversion time of 4 µs, supports throughput rates up to 50 kSPS, and can achieve power consumption as low as 570 µW at 10 kSPS when the power‑down mode is used. It is suited for low‑power handheld test equipment and communication systems requiring 8‑bit accuracy.
| Resolution | 8 Bits |
|---|---|
| Conversion Time | 4 µs typ |
| Supply Voltage | 2.7 V to 5.5 V |
| Power Dissipation (max) | 17.5 mW |
| Input Voltage Range | 0 V to Vpp |
| Input Leakage Current | +1 pA max |
| Input Capacitance | 15 pF max |
| Signal‑to‑Noise Ratio | 48 dB min |
The AD7823 converts an input in about 4 µs (typical).
At a throughput of 10 kSPS the device consumes roughly 570 µW.
It operates from a single supply of 2.7 V to 5.5 V.