ADuC831 is an 8-bit ADC controller that supports 247 kSPS sampling rate and 12-bit resolution.
The ADuC831 is a 12‑bit microconverter that integrates an 8‑channel ADC, dual 12‑bit DACs, on‑chip flash memory, and an 8052‑core MCU. It operates from 3 V or 5 V and includes peripherals such as UART, SPI, I²C, PWM, timers, a watchdog, and a temperature sensor.
The document lists detailed electrical specifications, absolute maximum ratings, ordering information, and pin‑out diagrams for the 52‑lead plastic quad flat‑pack (MQFP) and 56‑lead chip‑scale package (CSP). It also covers flash/EE memory reliability, power‑down current, and timing parameters for the SPI interface.
| ADC Resolution | 12 bits |
|---|---|
| ADC Signal‑to‑Noise Ratio (SNR) | 71 dB typ |
| DAC Resolution | 12 bits |
| Flash Program Memory | 62 kBytes |
| Flash Data Memory | 4 kBytes |
| Power‑Down Current | 20 pA @ 3 V |
| Maximum MCU Clock Rate | 16 MHz |
The ADuC831 provides a 12‑bit analog‑to‑digital converter.
In power‑down mode the device consumes only 20 pA at a 3 V supply.