Overview
The ADUC816BSZ from Analog Devices Inc. is a comprehensive smart transducer front-end integrated circuit. It combines two high-resolution sigma-delta Analog-to-Digital Converters (ADCs), an 8-bit microcontroller (MCU) based on the 8052 architecture, and program/data Flash/EE Memory on a single chip. This device is designed to accept low-level signals directly from transducers, making it suitable for various measurement applications. The ADUC816BSZ operates from a single 3 V or 5 V supply and features low power consumption, with power dissipation below 10 mW when operating at 3 V.
Key Specifications
| Specification | Details |
|---|---|
| Microcontroller Core | 8052, 8051-instruction-set-compatible |
| ADCs | Dual 16-bit sigma-delta ADCs (Primary and Auxiliary) |
| Memory | 8 Kbytes Flash/EE program memory, 640 bytes Flash/EE data memory, 256 bytes RAM |
| Clock Frequency | 12.58 MHz (generated from a 32 kHz external crystal with on-chip PLL) |
| Power Supply | Single 3 V or 5 V supply |
| Power Consumption | Below 10 mW at 3 V |
| Package | 52-lead MQFP, 56-lead LFCSP |
| Serial I/O | I2C, SPI, UART |
| Additional Peripherals | Watchdog timer, time interval counter, three timers/counters, power supply monitor, 12-bit DAC, current sources |
Key Features
- High-resolution sigma-delta ADCs with programmable gain and on-chip digital filtering
- Accurate filtering and precise amplification for low-level signal measurement
- Sensitive detection capabilities for wide dynamic range, low frequency signals
- Integrated temperature sensor and PGA for direct measurement of low-level signals
- On-chip peripherals including watchdog timer, time interval counter, three timers/counters, and power supply monitor
- 12-bit voltage output DAC and dual excitation current sources
- Support for in-circuit serial download and debug modes via UART and single-pin emulation mode via the EA pin
Applications
- Intelligent sensors (IEEE1451.2-compatible)
- Weigh scales
- Portable instrumentation
- Pressure transducers
- 4–20 mA transmitters
- Strain gauge and temperature measurement applications
Q & A
- Q: What is the core architecture of the ADUC816BSZ?
A: The ADUC816BSZ features an 8052 microcontroller core, which is 8051-instruction-set-compatible.
- Q: What types of ADCs are integrated into the ADUC816BSZ?
A: The ADUC816BSZ includes two high-resolution 16-bit sigma-delta ADCs (Primary and Auxiliary).
- Q: What is the memory configuration of the ADUC816BSZ?
A: The device has 8 Kbytes of Flash/EE program memory, 640 bytes of Flash/EE data memory, and 256 bytes of RAM.
- Q: What are the power supply options for the ADUC816BSZ?
A: The ADUC816BSZ can operate from a single 3 V or 5 V supply.
- Q: What is the power consumption of the ADUC816BSZ at 3 V?
A: The power dissipation is below 10 mW when operating at 3 V.
- Q: What types of serial I/O interfaces are available on the ADUC816BSZ?
A: The device supports I2C, SPI, and UART serial I/O interfaces.
- Q: What additional peripherals are integrated into the ADUC816BSZ?
A: The device includes a watchdog timer, time interval counter, three timers/counters, power supply monitor, 12-bit DAC, and current sources.
- Q: What are some common applications of the ADUC816BSZ?
A: Common applications include intelligent sensors, weigh scales, portable instrumentation, pressure transducers, and 4–20 mA transmitters.
- Q: How does the ADUC816BSZ support debugging and programming?
A: The device supports in-circuit serial download and debug modes via UART and single-pin emulation mode via the EA pin.
- Q: What is the warranty period for the ADUC816BSZ-REEL from Ovaga?
A: Ovaga offers a 1-year warranty on the ADUC816BSZ-REEL, covering any defects in materials and workmanship under normal use.
