Overview
The ADUC812BS from Analog Devices Inc. is a fully integrated 12-bit data acquisition system that combines a high-performance self-calibrating multichannel Analog-to-Digital Converter (ADC), dual Digital-to-Analog Converters (DACs), and a programmable 8-bit Microcontroller Unit (MCU) compatible with the 8051 instruction set. This MicroConverter integrates various peripherals and memory, making it a versatile solution for a wide range of applications. The device operates at 3 V and 5 V and is available in a 52-lead, plastic quad flatpack package, suitable for industrial temperature ranges.
Key Specifications
| Specification | Details |
|---|---|
| ADC Resolution | 12-bit |
| ADC Channels | 8 channels |
| DACs | 2 x 12-bit voltage output DACs |
| MCU Core | 8051 compatible, 8-bit |
| Program Memory | 8K bytes Flash/EE |
| Data Memory | 640 bytes Flash/EE, 256 bytes SRAM |
| Operating Voltage | 3 V and 5 V |
| Operating Modes | Normal, idle, and power-down |
| Temperature Range | Industrial temperature range |
| Package Type | 52-lead MQFP (10mm x 10mm) |
| Serial Interfaces | I2C compatible SPI, Standard UART |
| Timer/Counters | 3 x 16-bit timer/counters |
| Watchdog Timer | Yes |
| Power Supply Monitor | Yes |
Key Features
- High accuracy 12-bit ADC with self-calibration
- On-chip 100 ppm/°C voltage reference
- High speed 200 kSPS ADC-to-RAM capture via DMA controller
- On-chip temperature sensor function
- 32 programmable I/O lines
- I2C compatible SPI and Standard UART serial port I/O
- Watchdog timer and power supply monitor
- Normal, idle, and power-down operating modes for low power applications
Applications
- Intelligent sensors and calibration and conditioning systems
- Battery-powered systems (e.g., portable PCs, instruments, monitors)
- Transient capture systems
- Data Acquisition and Communication Systems
- Control loop monitors (e.g., optical networks/base stations)
Q & A
- What is the ADC resolution of the ADUC812BS?
The ADUC812BS has a 12-bit ADC resolution. - How many ADC channels does the ADUC812BS have?
The ADUC812BS has 8 ADC channels. - What type of MCU core does the ADUC812BS use?
The ADUC812BS uses an 8051 compatible, 8-bit MCU core. - What is the program memory capacity of the ADUC812BS?
The ADUC812BS has 8K bytes of Flash/EE program memory. - What are the operating voltage options for the ADUC812BS?
The ADUC812BS operates at 3 V and 5 V. - What are the operating modes of the ADUC812BS?
The ADUC812BS has normal, idle, and power-down operating modes. - What type of package is the ADUC812BS available in?
The ADUC812BS is available in a 52-lead MQFP (10mm x 10mm) package. - Does the ADUC812BS have serial interface capabilities?
Yes, the ADUC812BS has I2C compatible SPI and Standard UART serial port I/O. - Does the ADUC812BS include a watchdog timer and power supply monitor?
Yes, the ADUC812BS includes both a watchdog timer and a power supply monitor. - What are some typical applications of the ADUC812BS?
The ADUC812BS is typically used in intelligent sensors, battery-powered systems, transient capture systems, data acquisition and communication systems, and control loop monitors.
