ADuC812 is a multi-channel 12-bit ADC chip produced by Analog Devices. Its features are 8 channels, high accuracy 12-bit ADC, on-chip 40 ppm/℃ voltage reference, high speed 200kSPS DMA controller, high speed ADC-to-RAM capture function, and two 12-bit voltage output DACs.
The ADuC812 is a fully integrated 12-bit data acquisition system incorporating a high performance self-calibrating multichannel ADC, two 12-bit DACs and a programmable 8-bit (8051-compatible) MCU on a single chip. It features an on-chip charge pump for operation without external programming voltage requirements.
| Resolution | 12 Bits |
|---|---|
| Integral Nonlinearity | +15 LSB max |
| Operating Voltage (Vpp) | 3 V or 5 V |
| Max Clock Frequency | 16 MHz |
| Flash Program Memory | 8K Bytes |
| Data RAM | 256 Bytes |
| Package Type | 52-Lead Plastic Quad Flatpack |
The device is specified for industrial temperature operation from -40°C to +85°C.
No, it includes an on-chip charge pump that eliminates the need for an external Vpp.
The typical Signal-to-Noise Ratio (SNR) is 70 dB.