Overview
The ADUC812BSZ-REEL, produced by Analog Devices Inc., is a fully integrated 12-bit data acquisition system. It combines a high-performance self-calibrating multichannel ADC, dual DAC, and a programmable 8-bit MCU (8051 instruction set compatible) on a single chip. This MicroConverter integrates 8K bytes of Flash/EE program memory, 640 bytes of Flash/EE data memory, and 256 bytes of data SRAM. The device supports various MCU functions including a Watchdog Timer, Power Supply Monitor, and ADC DMA functions. It is designed for applications requiring high accuracy and flexibility in data acquisition and processing.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | 8052 (8-bit CISC) |
| Speed | 12 MHz nominal (16 MHz max) |
| Program Memory | 8 KB Flash/EE |
| Data Memory | 640 bytes Flash/EE, 256 bytes SRAM |
| Number of I/O | 34 programmable I/O lines |
| Connectivity | I2C, SPI, UART/USART |
| Analog I/O | 8-channel, 12-bit ADC, 2 x 12-bit DACs |
| Voltage Supply | 2.7 V to 5.5 V |
| Operating Temperature | -40°C to 85°C |
| Package | 52-lead MQFP |
| Peripherals | Watchdog Timer, Power Supply Monitor, Temperature Sensor |
Key Features
- High accuracy 12-bit ADC with on-chip 100 ppm/°C voltage reference
- High speed 200 kSPS ADC with DMA controller for high speed ADC-to-RAM capture
- Two 12-bit voltage output DACs and on-chip temperature sensor function
- 8051 compatible core with 3 x 16-bit timer/counters and high current drive capability on Port 3
- 9 interrupt sources with 2 priority levels
- On-chip peripherals include UART, SPI, and 2-wire (400 kHz I2C compatible) serial I/O
- Normal, idle, and power-down operating modes for flexible power management
Applications
- Intelligent sensors calibration and conditioning
- Battery-powered systems (Portable PCs, instruments, monitors)
- Transient capture systems
- Data Acquisition Systems (DAS) and communications systems
- Control loop monitors (optical networks/base stations)
Q & A
- What is the core processor of the ADUC812BSZ-REEL?
The core processor is an 8052 (8-bit CISC). - What is the maximum operating speed of the ADUC812BSZ-REEL?
The maximum operating speed is 16 MHz. - How much program memory does the ADUC812BSZ-REEL have?
The device has 8 KB of Flash/EE program memory. - What types of serial communication interfaces are available on the ADUC812BSZ-REEL?
The device supports I2C, SPI, and UART/USART interfaces. - What is the operating temperature range of the ADUC812BSZ-REEL?
The operating temperature range is from -40°C to 85°C. - What are the key analog I/O features of the ADUC812BSZ-REEL?
The device features an 8-channel, 12-bit ADC and two 12-bit DACs. - Does the ADUC812BSZ-REEL support power management features?
Yes, it supports normal, idle, and power-down operating modes for flexible power management. - What package type is the ADUC812BSZ-REEL available in?
The device is available in a 52-lead MQFP package. - What are some typical applications of the ADUC812BSZ-REEL?
Typical applications include intelligent sensors, battery-powered systems, transient capture systems, DAS, and control loop monitors. - Does the ADUC812BSZ-REEL have on-chip peripherals?
Yes, it includes peripherals such as a Watchdog Timer, Power Supply Monitor, and a temperature sensor.
