ADuC812 is a single-chip microcomputer based on the 8051 architecture from Analog Devices. It has 8 channels, 12-bit high-precision ADC, built-in 2.5V reference voltage and 200 kSPS DMA controller for fast ADC to RAM capture.
The ADuC812 is a fully integrated 12‑bit MicroConverter with an 8051‑compatible core, dual 12‑bit ADC channels, two 12‑bit DACs, on‑chip flash, and a range of digital peripherals. The handbook details its features, electrical characteristics, and recommended design practices.
Key sections cover the device's functional blocks, absolute maximum ratings, pin configurations, ADC and DAC specifications, power‑supply monitoring, watchdog timer, and programming interfaces such as SPI, I²C, and UART.
| ADC Resolution | 12 bits |
|---|---|
| Integral Nonlinearity (ADC) | ±0.5 LSB typ |
| Supply Voltage | 3 V or 5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| On‑Chip Flash Program Memory | 8 KB |
The ADuC812 provides a 12‑bit analog‑to‑digital conversion resolution.
The device can operate from either a 3 V or a 5 V supply.
It is rated for industrial temperature operation from –40 °C to +85 °C.