Overview
The ADUC832BCPZ-REEL, produced by Analog Devices Inc., is a comprehensive smart transducer front end that integrates multiple 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, which is compatible with the 8051 instruction set. The MCU operates from a 32 kHz external crystal with an on-chip Phase-Locked Loop (PLL) generating a high frequency clock of 16.78 MHz. This versatile chip is designed for various applications requiring precise analog and digital signal processing.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Microcontroller Core | 8052, 8051 instruction set compatible | |
| ADC Resolution | 12-bit, multichannel | |
| DAC Resolution | Dual 12-bit | |
| Memory | 62 kB Flash/EE program memory, 4 kB Flash/EE data memory, 256 bytes RAM, 2 kB extended RAM | |
| Clock Source | 32 kHz external crystal with on-chip PLL | 16.78 MHz |
| Operating Voltage | 3 V and 5 V | |
| Power Consumption | Normal, idle, and power-down modes; 25 μA @ 3 V in power-down mode | |
| Package | 56-Lead LFCSP (8mm x 8mm w/ EP) | |
| Serial I/O | SPI, I2C, and UART | |
| Additional Peripherals | Watchdog timer, time interval counter, three timers/counters, dual-output 16-bit PWM |
Key Features
- High-performance self-calibrating multichannel 12-bit ADC
- Dual 12-bit DACs with internal buffer disabled
- Programmable 8-bit MCU based on the 8052 core, compatible with the 8051 instruction set
- On-chip PLL generating a high frequency clock from a 32 kHz external crystal
- 62 kB Flash/EE program memory, 4 kB Flash/EE data memory, 256 bytes RAM, and 2 kB extended RAM
- On-chip digital peripherals including watchdog timer, time interval counter, three timers/counters, and dual-output 16-bit PWM
- Serial I/O ports (SPI, I2C, and UART)
- Power supply monitor and band gap reference
- Normal, idle, and power-down modes for power management
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 core architecture of the ADUC832 MCU?
The ADUC832 MCU is based on the 8052 core and is compatible with the 8051 instruction set.
- What is the resolution of the ADC and DAC in the ADUC832?
The ADC has a 12-bit resolution, and there are dual 12-bit DACs.
- What is the memory configuration of the ADUC832?
The device includes 62 kB Flash/EE program memory, 4 kB Flash/EE data memory, 256 bytes RAM, and 2 kB extended RAM.
- How does the ADUC832 generate its clock signal?
The ADUC832 generates its clock signal from a 32 kHz external crystal using an on-chip PLL, producing a high frequency clock of 16.78 MHz.
- What are the operating voltage ranges for the ADUC832?
The ADUC832 operates at 3 V and 5 V.
- What are the power consumption modes of the ADUC832?
The device has normal, idle, and power-down modes, with a power-down mode consumption of 25 μA @ 3 V.
- What serial communication interfaces are available on the ADUC832?
The ADUC832 supports SPI, I2C, and UART serial communication interfaces.
- What additional peripherals are integrated into the ADUC832?
The device includes a watchdog timer, time interval counter, three timers/counters, and a dual-output 16-bit PWM.
- What are some common applications of the ADUC832?
Common applications include optical networking, base station systems, precision instrumentation, smart sensors, transient capture systems, and DAS and communications systems.
- What package options are available for the ADUC832?
The ADUC832 is available in a 56-Lead LFCSP (8mm x 8mm w/ EP) package.
