Overview
The ADUC832BS, produced by Analog Devices Inc., is a comprehensive smart transducer front end that integrates multiple advanced functionalities on a single chip. This device features a high-performance self-calibrating multichannel 12-bit Analog-to-Digital Converter (ADC), dual 12-bit Digital-to-Analog Converters (DACs), and a programmable 8-bit Microcontroller Unit (MCU) based on the 8052 core. The MCU is compatible with the 8051 instruction set and operates at a maximum frequency of 16 MHz. The device is powered by a 32 kHz external crystal with an on-chip Phase-Locked Loop (PLL) that generates a high-frequency clock of 16.78 MHz.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| ADC Resolution | 12-bit | - | - |
| ADC Channels | Multichannel | - | - |
| DAC Resolution | 12-bit | - | - |
| DAC Channels | Dual | - | - |
| MCU Core | 8052 | - | - |
| Instruction Set | 8051 compatible | - | - |
| Maximum Clock Frequency | 16 MHz | - | - |
| Program Memory | 62 kB Flash/EE | - | - |
| Data Memory | 4 kB Flash/EE, 2304 bytes RAM | - | - |
| Operating Voltage | 3 V, 5 V | - | - |
| Power Consumption (Power-Down) | 25 μA @ 3 V | - | - |
| On-Chip Peripherals | UART, I2C, SPI, Watchdog Timer, Time Interval Counter, etc. | - | - |
Key Features
- High-performance self-calibrating multichannel 12-bit ADC
- Dual 12-bit DACs with on-chip voltage reference and power supply monitor
- Programmable 8-bit MCU based on the 8052 core with 8051-compatible instruction set
- 62 kB of nonvolatile Flash/EE program memory and 4 kB of nonvolatile Flash/EE data memory
- 2304 bytes of on-chip data RAM and 2 kB of extended RAM
- On-chip temperature sensor with ±3°C accuracy
- Dual 16-bit Σ-Δ DACs and dual-output 16-bit PWM
- UART, I2C, and SPI serial I/O ports
- Watchdog timer, time interval counter, and power supply monitor
- Normal, idle, and power-down modes with low power consumption
Applications
- Optical networking—laser power control
- Base station systems
- Precision instrumentation and smart sensors
- Transient capture systems
- Data Acquisition Systems (DAS) and communications systems
- Upgrade to ADuC812 systems
Q & A
- What is the ADC resolution of the ADUC832BS?
The ADUC832BS features a 12-bit multichannel ADC.
- How many DAC channels does the ADUC832BS have?
The device has dual 12-bit DAC channels.
- What is the MCU core of the ADUC832BS?
The MCU core is based on the 8052 with an 8051-compatible instruction set.
- What is the maximum clock frequency of the ADUC832BS?
The maximum clock frequency is 16 MHz.
- How much program memory does the ADUC832BS have?
The device has 62 kB of nonvolatile Flash/EE program memory.
- What are the operating voltage ranges for the ADUC832BS?
The device operates at 3 V and 5 V.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 25 μA @ 3 V.
- What serial communication interfaces are available on the ADUC832BS?
The device supports UART, I2C, and SPI serial I/O ports.
- Does the ADUC832BS have any on-chip temperature sensing capabilities?
Yes, it includes an on-chip temperature sensor with ±3°C accuracy.
- What are some typical applications of the ADUC832BS?
Typical applications include optical networking, base station systems, precision instrumentation, transient capture systems, and DAS and communications systems.
