Overview
The ADUC845BSZ8-5-RL, produced by Analog Devices Inc., is a member of the ADUC845 series of MicroConverter® devices. These microcontrollers integrate high-resolution Σ-Δ analog-to-digital converters (ADCs) with a fast 8-bit microcontroller core, program and data Flash/EE memory, and various on-chip peripherals. The ADUC845BSZ8-5-RL is specifically designed for applications requiring multiple analog input channels and high precision measurement capabilities.
This device is an upgrade to earlier models, offering enhanced performance with a single-cycle 8052 core, achieving up to 12.58 MIPs. It includes two 24-bit Σ-Δ ADCs (though the auxiliary ADC is not present in this specific model), internal buffering, and a programmable gain amplifier (PGA) on the primary ADC. The device operates from a 32 kHz crystal with an on-chip PLL generating a high-frequency clock.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | 52-Lead MQFP | - |
| Package Dimensions | 10mm x 10mm | - |
| ADC Resolution | 24-bit (primary), 16-bit (auxiliary not present in this model) | - |
| ADC Input Channels | Up to 10 channels | - |
| Microcontroller Core | Single-cycle 8052 core | - |
| Program Memory | 62 kB Flash/EE | - |
| Data Memory | 4 kB Flash/EE, 2304 bytes RAM | - |
| Clock Frequency | Up to 12.58 MHz | - |
| Power Supply | 3 V and 5 V operation | - |
| Power Consumption | 4.8 mA max at 3.6 V (core CLK = 1.57 MHz), 20 μA max in power-down mode | - |
Key Features
- High-Resolution ADCs: The ADUC845BSZ8-5-RL features two 24-bit Σ-Δ ADCs with flexible input multiplexing and internal buffering.
- Single-Cycle MCU: The device includes a fast 8-bit microcontroller core based on the 8052 architecture, offering up to 12.58 MIPs performance.
- On-Chip Memory: It has 62 kB of nonvolatile Flash/EE program memory, 4 kB of nonvolatile Flash/EE data memory, and 2304 bytes of data RAM.
- On-Chip Peripherals: Includes UART, SPI, I2C serial I/O, 3 × 16-bit timers, a watchdog timer, and a power supply monitor.
- Programmable Gain Amplifier (PGA): The primary ADC includes a PGA for direct measurement of low-level signals.
- Temperature Sensor: Although not present in this specific model, the ADUC845 series includes a temperature sensor in some variants.
- Low Power Consumption: The device operates with low power consumption, making it suitable for battery-powered systems.
Applications
- Multichannel Sensor Monitoring: Ideal for applications requiring multiple analog input channels.
- Industrial/Environmental Instrumentation: Suitable for weigh scales, pressure sensors, and temperature monitoring.
- Portable Instrumentation: Used in battery-powered systems due to its low power consumption.
- Data Logging: Can be configured for data logging applications with up to 60 kB of NV data memory.
- Precision System Monitoring: Used in precision measurement and monitoring systems.
Q & A
- What is the operating temperature range of the ADUC845BSZ8-5-RL?
The operating temperature range is -40°C to 125°C.
- What type of package does the ADUC845BSZ8-5-RL come in?
The device comes in a 52-Lead MQFP package.
- What is the resolution of the ADCs in the ADUC845BSZ8-5-RL?
The primary ADC is 24-bit, and the auxiliary ADC is not present in this model.
- How many ADC input channels does the ADUC845BSZ8-5-RL support?
It supports up to 10 ADC input channels.
- What is the core architecture of the microcontroller in the ADUC845BSZ8-5-RL?
The microcontroller core is based on the single-cycle 8052 architecture.
- How much program memory does the ADUC845BSZ8-5-RL have?
The device has 62 kB of nonvolatile Flash/EE program memory.
- What are the power supply options for the ADUC845BSZ8-5-RL?
The device operates at 3 V and 5 V.
- What is the power consumption of the ADUC845BSZ8-5-RL in normal and power-down modes?
In normal mode, it consumes up to 4.8 mA at 3.6 V, and in power-down mode, it consumes up to 20 μA.
- Does the ADUC845BSZ8-5-RL have a temperature sensor?
No, the temperature sensor is only present in the ADUC845 model, not in the ADUC845BSZ8-5-RL.
- What development tools are available for the ADUC845BSZ8-5-RL?
The device is supported by the QuickStart™ development system, which includes low-cost software and hardware development tools.
