Overview
The ADUC847BSZ62-5 is a MicroConverter from Analog Devices Inc., integrating a high-performance 8051-based microcontroller with multichannel analog-to-digital converters (ADCs). This device is designed for precision measurement and control applications, offering a robust set of features that make it suitable for a variety of industrial and environmental monitoring tasks.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| On-chip Flash/EE Program Memory | 62 kbytes | ||
| On-chip Flash/EE Data Memory | 4 kbytes | ||
| On-chip Data RAM | 2304 bytes | ||
| ADC Resolution | 24-bit (no missing codes), 22-bit rms (19.5 bit p-p) effective resolution | Chop enabled | |
| ADC Input Channels | Up to 10 | ||
| Microcontroller Core | 8051-based, single-cycle core | ||
| Timer/Counters | 3 × 16-bit | ||
| Programmable I/O Lines | 24 | Plus 8 analog or digital input lines | |
| Interrupt Sources | 11 | Two priority levels | |
| Serial I/O | UART, SPI, I2C | ||
| Power Supply | 3 V and 5 V operation | ||
| Package | 52-lead MQFP | −40°C to +125°C | |
| Power Consumption (Normal Mode) | 4.8 mA max at 3.6 V (core CLK = 1.57 MHz) | mA | |
| Power Consumption (Power-Down Mode) | 20 μA max with wake-up timer running | μA |
Key Features
- High-performance 8051-based microcontroller with single-cycle core.
- Up to 10 ADC input channels with 24-bit resolution and no missing codes.
- 62 kbytes of on-chip Flash/EE program memory and 4 kbytes of on-chip Flash/EE data memory.
- 100-year retention and 100 kcycle endurance for Flash/EE memory.
- Three levels of Flash/EE program memory security.
- In-circuit serial download capability without external hardware.
- High-speed user download in 5 seconds.
- Dual 16-bit Σ-Δ DACs and a 12-bit voltage output DAC.
- On-chip temperature sensor (available on ADuC845 model).
- Dual excitation current sources (200 μA each).
- UART, SPI, and I2C serial I/O with high-speed dedicated baud rate generator.
- Watchdog timer and power supply monitor.
Applications
- Multichannel sensor monitoring.
- Industrial and environmental instrumentation.
- Weigh scales and pressure sensors.
- Temperature monitoring.
- Portable instrumentation and battery-powered systems.
- Data logging and precision system monitoring.
Q & A
- What is the resolution of the ADC in the ADUC847BSZ62-5?
The ADC has a 24-bit resolution with no missing codes and a 22-bit rms (19.5 bit p-p) effective resolution when chop is enabled. - How much on-chip Flash/EE program memory does the ADUC847BSZ62-5 have?
The device has 62 kbytes of on-chip Flash/EE program memory. - What is the maximum operating temperature range for the ADUC847BSZ62-5?
The device operates within a temperature range of −40°C to +125°C. - Does the ADUC847BSZ62-5 support serial communication?
Yes, it supports UART, SPI, and I2C serial I/O. - What is the power consumption in normal mode at 3.6 V?
The power consumption is 4.8 mA max at 3.6 V with a core clock frequency of 1.57 MHz. - Does the ADUC847BSZ62-5 have any security features for the Flash/EE memory?
Yes, it has three levels of Flash/EE program memory security. - Can the ADUC847BSZ62-5 be programmed in-circuit?
Yes, it supports in-circuit serial download without external hardware. - What is the endurance of the Flash/EE memory?
The Flash/EE memory has a 100 kcycle endurance. - Does the ADUC847BSZ62-5 have a watchdog timer?
Yes, it includes a watchdog timer. - What are the typical applications of the ADUC847BSZ62-5?
Typical applications include multichannel sensor monitoring, industrial and environmental instrumentation, weigh scales, pressure sensors, temperature monitoring, and data logging.
