Overview
The ADUC834BCPZ-REEL, produced by Analog Devices Inc., is a comprehensive smart transducer front end integrated into a single chip. This device combines two high-resolution analog-to-digital converters (ADCs), an 8-bit microcontroller (MCU), and both program and data Flash/EE memory. The ADUC834 is designed to measure wide dynamic range, low-frequency signals, making it suitable for applications such as weigh scales, strain-gage, pressure transducers, and temperature measurements.
Key Specifications
| Specification | Details |
|---|---|
| Microcontroller Core | 8052, 8051 instruction set compatible |
| ADC Resolution | 2 Independent ADCs: 16-Bit and 24-Bit |
| ADC Performance | 24-Bit Primary ADC: No missing codes, 21-Bit rms (18.5-Bit p-p) effective resolution @ 20 Hz |
| Memory | 62 Kbytes On-Chip Flash/EE Program Memory, 4 Kbytes On-Chip Flash/EE Data Memory, 2304 bytes On-Chip Data RAM |
| Clock Source | 32 kHz External Crystal with on-chip PLL generating up to 12.58 MHz |
| Serial I/O | UART, SPI, and I2C |
| Timers/Counters | 3 x 16-Bit Timer/Counter |
| Programmable I/O Lines | 26 Programmable I/O Lines |
| Interrupt Sources | 11 Interrupt Sources, Two Priority Levels |
| Package | 56-Lead LFCSP (8mm x 8mm w/ EP) |
Key Features
- High Resolution Σ-Δ ADCs: 16-Bit and 24-Bit resolution with on-chip digital filtering and programmable output data rates.
- Temperature Sensor and PGA: Allows direct measurement of low-level signals.
- Memory: 62 Kbytes of nonvolatile Flash/EE program memory, 4 Kbytes of nonvolatile Flash/EE data memory, and 2304 bytes of data RAM.
- In-Circuit Serial Download and Debug: Supported via UART and single-pin emulation mode via the EA pin.
- QuickStart™ Development System: Features low-cost software and hardware development tools.
- Power Supply and Clock Management: Operates from a 32 kHz crystal with an on-chip PLL generating a high-frequency clock.
Applications
- Weigh Scales: Accurate measurement of weight signals.
- Strain-Gage: Measurement of strain in various materials.
- Pressure Transducers: Precise measurement of pressure signals.
- Temperature Measurement: High-resolution temperature sensing.
- Data Logging: Up to 60 Kbytes of NV data memory configurable for data logging applications.
Q & A
- What is the ADUC834BCPZ-REEL?
The ADUC834BCPZ-REEL is a smart transducer front end from Analog Devices Inc., integrating two high-resolution ADCs, an 8-bit MCU, and Flash/EE memory on a single chip.
- What are the key ADC specifications of the ADUC834?
The ADUC834 features two independent ADCs: a 16-Bit and a 24-Bit Σ-Δ ADC. The 24-Bit ADC has no missing codes and an effective resolution of 21-Bit rms (18.5-Bit p-p) at 20 Hz.
- What type of microcontroller core does the ADUC834 use?
The ADUC834 uses an 8052 microcontroller core, which is 8051 instruction set compatible.
- What is the memory configuration of the ADUC834?
The device includes 62 Kbytes of nonvolatile Flash/EE program memory, 4 Kbytes of nonvolatile Flash/EE data memory, and 2304 bytes of data RAM.
- How does the ADUC834 manage its clock source?
The ADUC834 operates from a 32 kHz external crystal with an on-chip PLL generating up to 12.58 MHz.
- What serial communication interfaces does the ADUC834 support?
The ADUC834 supports UART, SPI, and I2C serial communication interfaces.
- What are the typical applications of the ADUC834?
The ADUC834 is typically used in weigh scales, strain-gage, pressure transducers, and temperature measurement applications.
- Does the ADUC834 support in-circuit programming and debugging?
Yes, the ADUC834 supports in-circuit serial download and debug modes via UART and single-pin emulation mode via the EA pin.
- What development tools are available for the ADUC834?
The ADUC834 is supported by a QuickStart™ development system featuring low-cost software and hardware development tools.
- What is the package type of the ADUC834BCPZ-REEL?
The ADUC834BCPZ-REEL comes in a 56-Lead LFCSP (8mm x 8mm w/ EP) package.
